Kebaikan Vitamin D Shaklee

Kebaikan Vitamin D Shaklee

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Vitamin D is important for maintaining a healthy body, primarily because it helps you fully maximize your body's absorption and utilization of calcium, an important mineral that we all need. When paired with calcium, vitamin D helps regulate bone remodeling and growth, ensuring healthy, strong bones. Vitamin D can also help protect older adults from osteoporosis, which occurs due to excess bone loss from aging.

Furthermore, this nutrient boosts your immune system and reduces inflammation within your body, potentially warding off future medical conditions in the process. It also plays a vital role in cell growth, neuromuscular functions and protein encoding. Studies have shown that a regular, healthy vitamin D intake can also serve as an antidepressant and make people feel generally happier. But that's not all you'll want to know about vitamin D.

Vitamin D is naturally found in certain foods and now appears in many more foods that have been fortified with added nutrients. The best sources of naturally occurring vitamin D are oily fish such as salmon, tuna, cod, sardines and mackerel. Fish liver oils are another good source of vitamin D. Small amounts of the nutrient are present in beef liver, cheese, egg yolks and mushrooms.

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Commonly, vitamin D-fortified foods include whole milk, orange juice, margarine and breakfast cereals. It's important to look at the label and nutrition facts to verify that vitamin D is in a particular food you're considering. Because dairy products are often fortified with vitamin D, lactose intolerant or vegan individuals should keep an eye on their diets to ensure they get enough of the vitamin.

Sun exposure is another method of naturally obtaining vitamin D, as our bodies can create their own vitamin D upon exposure to ultraviolet (UV) rays from the sun. However, it's difficult to gauge exactly how much sun exposure can generate sufficient vitamin D, as overexposure can be harmful, too. UV rays are also known to trigger free radicals, which can lead to skin cancer if left unchecked.

It's been suggested that getting approximately 15 minutes of sun exposure between 10 a.m. and 3 p.m. at least twice a week to your face, arms, legs or back will help your body synthesize enough vitamin D. It's important to note that you can't cover the exposed area of your body with sunscreen if you choose to get vitamin D naturally. The SPF blocks UV rays and can hinder your body's ability to create vitamin D. If you're in the shade or behind a window, the rays will not get through. If the climate where you live is primarily cloudy, it's important to get your recommended amount of vitamin D via other means.

Dietary supplements are also an excellent way of obtaining vitamin D. Supplements come in two forms: vitamin D3 (cholecalciferol), which is identical to the form your body makes when exposed to sunlight, and vitamin D2 (ergocalciferol), which differs slightly from D3 in its chemical side-chain structure. There's some evidence that vitamin D3 increases and maintains overall levels slightly better than vitamin D2.

Side Effects of a Vitamin D Deficiency

Vitamin D deficiency occurs when you don't adequately absorb the nutrient or when your kidneys can't convert the nutrient to its active form. This deficiency can result in medical conditions, two of which are called rickets and osteomalacia.

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Rickets, a disease characterized by a failure of bone tissues to get enough minerals, can result in abnormal, soft bones and skeletal deformities. It's most common in children. Fortunately, it isn't permanent, and kids can consume as few as 1 to 3 teaspoons of cod liver oil a day to reverse the condition.

With the help of fortified foods today, rickets is almost obsolete in the United States. Osteomalacia, characterized by soft and weak bones, is usually present in adults. It's commonly treated with an intense regimen of vitamin D replacement under the care of a physician.

Vitamin D and Other Health Conditions

Vitamin D deficiency has been linked to cardiovascular disease, and people with lower levels of vitamin D appear to be at an increased risk of having a heart attack or stroke. However, the exact relationship isn't clear, and there appears to be no benefit to cardiovascular risk in taking a vitamin D supplement.

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Research is also ongoing to find if there's a link between vitamin D and multiple sclerosis (MS). It appears that vitamin D deficiency is linked to the development of MS, and people with MS and higher levels of vitamin D appear to have reduced disease activity.

Low vitamin D has been linked to an increased risk of contracting respiratory illnesses such as influenza A. It appears that people with low vitamin D levels are at greater risk of severe novel coronavirus (COVID-19) infection. It's not clear yet if routine vitamin D supplementation would reduce this risk.

Because vitamin D is a fat-soluble substance, it can stay in your body for several days. Thus, vitamin D poisoning is possible if you supplement too much vitamin D over a period of a few months. Symptoms of vitamin D overdose include dehydration, vomiting, decreased appetite, irritability, constipation and fatigue. If left unaddressed, vitamin D poisoning can lead to anorexia, over-calcification of the bones and internal organs, kidney stones and hypertension (high blood pressure). It's important to note that vitamin D poisoning usually only occurs with excessive intake of dietary supplements. It's highly unlikely to occur as a result of normal dietary intake and sun exposure.

Daily Dosage Recommendations

The recommended dietary allowances for vitamin D vary depending on your age and other health and life circumstances, such as pregnancy. For infants under 12 months, the recommended intake is 400 international units (IU) or 10 micrograms (mcg). For individuals under 70 years old, the recommended intake is 600IU (15mcg). For individuals over 70 years old, the intake increases to 800IU (20mcg).

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If you have a pre-existing medical condition or other medical concerns, it's best to talk to a healthcare professional about determining your recommended dietary allowance for vitamin D. This way, you can be sure the vitamin doesn't interact negatively with your condition or medication.

Resource Links:

https://medlineplus.gov/vitamind.html

https://ods.od.nih.gov/factsheets/VitaminD-Consumer/

https://www.hsph.harvard.edu/nutritionsource/vitamin-d/

https://medlineplus.gov/druginfo/meds/a620058.html

https://bestpractice.bmj.com/patient-leaflets/en-gb/pdf/3000049/Vitamin%20D%20deficiency.pdf

https://bestpractice.bmj.com/topics/en-gb/641

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/537616/SACN_Vitamin_D_and_Health_report.pdf

https://www.covid19treatmentguidelines.nih.gov/adjunctive-therapy/vitamin-d/

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Kebaikan Vitamin D Shaklee

Source: https://www.symptomfind.com/health/vitamin-d-facts?utm_content=params%3Ao%3D740013%26ad%3DdirN%26qo%3DserpIndex

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Indian Home Remedies For Vitamin D Deficiency

Indian Home Remedies For Vitamin D Deficiency

Experts offer tips on how to maintain your intake of this vital prohormone, while staying at home

A long-prevalent health issue — that's come into sharp focus during our long days indoors given the Coronavirus lockdown — is deficiency of vitamin D. It feels as though we are not getting our daily dose of this integral fat-soluble prohormone (it gets converted into a hormone in the body). And we could very well be right, unfortunately.

Researchers in a 2018 study 'Vitamin D deficiency in India' by P Aparna et al published in the Journal of Family Medicine and Primary Care sum up the role of vitamin D well: "[The vitamin] is needed for the maintenance of normal blood levels of calcium and phosphate that are required for normal mineralisation of bone, muscle contraction, nerve conduction, and general cellular function in all cells of the body." The researchers describe its scarcity as "a silent epidemic" and "the most under-diagnosed and under-treated nutritional deficiency in the world."

Dr Sushila Kataria, Senior Director of Internal Medicine at Medanta The Medicity, Gurugram

Dr Sushila Kataria, Senior Director of Internal Medicine at Medanta The Medicity, Gurugram, agrees that vitamin D deficiency has been a long-prevalent issue in India anyway, and that we should be vigilant about these levels throughout the year, lockdown or not. Dr Kataria explains that in certain amounts of UV light, cholesterol in the blood gets converted into vitamin D, adding, "It acts like a hormone, helping in calcium homeostasis and, in turn, bone and muscle strength, as well as optimising the nervous system." There are two sub-sects of vitamin D: D2 (found in plants) and D3 (found in fatty animal sources). But Dr Kataria says that it is difficult to find abundant sources of both in India, hence the need for fortified foods.

Meet the mark

Mumbai-based Tanvi Dalal, founder of WellNest Nutrition, recommends her clients to take multivitamin supplements, adding, "Many people, without testing their levels, assume they are eating a lot of vitamin D-rich foods, such as one piece of salmon for dinner or a whole bowl of cereal which is fortified with vitamin D. These portions are not enough; matching up to 800 IU is very tough. A can of tuna can claim to have 500 IU, but you will not eat the whole can, only two tablespoons most likely. For people up to 70 years of age, between 600 to 800 IU of vitamin D is required, and the multivitamin covers this exactly, without going over or under."

Tanvi says it's best to spend between 30 minutes and an hour on the balcony or terrace, between 11 am and 2 pm, when the sun is at its nexus. The big key here is to not wear any SPF. Sunscreen-lovers may balk at such a suggestion, but Tanvi affirms that SPF will filter out your sunlight exposure and stop vitamin D production. If you are prone to sunburn, opt for shorter bursts through this period.

Tanvi Dalal, M.S., of Mumbai-based WellNest Nutrition

At-risk groups — children younger than five years old, those who are pregnant or breastfeeding, people with dark skin, those who are obese, and those over 65 years — definitely need the supplements. "But everyone needs vitamin D, not just at-risk groups," says Tanvi. During the time of lockdown, pharmacies across the country have, in fact, upped their stock on vitamin D supplements, so Tanvi advises speaking to your doctor or nutritionist before finding the best one for you and your family.

Dr Kataria adds that there are vitamin D intramuscular cholecalciferol injections which have doses upwards of 3,00,000 IU, which can sustain the body for three to four months, but it is not wise to go to a clinic to take these right now, unless your doctor recommends it. She suggests we keep these in mind once the lockdown lifts.

Dietary must-haves

• Cod liver oil, and fish such as sardines, trout, hilsa, salmon, sword fish, mackerel, and tuna, are good sources of vitamin D. Egg yolk (both chicken and quail are good too).
• Mushrooms are the only known plant food that naturally has the vitamin. Leaving them out in the sun for about 15 to 30 minutes increases levels.
• India's food industry vouches for foods with fortification: all grades of milk and milk products (such as curd and yoghurt), as well as widely-consumed food items such as atta and rice flour.

Fit, inside-out

As the lockdown continues, our home workouts become something of a must-do. Tanvi talks of the link between vitamin D deficiency and exercise, explaining, "Your ability to exercise reduces significantly because it is also needed for calcium absorption for the muscles." If you're fatigued quickly and can't understand why, speak to your doctor — you may be D deficient.

Lockdown blues are also on the prowl and vitamin D deficiency is linked to declining mental health, so it does not hurt to cover your bases, as your mental health is already vulnerable in these difficult times.

Dr Kataria says, "Both vitamin D and B12 deficiencies are related to depression and anxiety, especially at this time. Medically, before prescribing an anti-anxiety tablet, your doctor may check these levels, and prescribe a supplement along with psychotherapy."

However once again, because we cannot go to a lab for a test or have a lab technician come home, a supplement may be the way to go. That and a good diet, exercise, and sunshine. Cut out smoking and reduce drinking, because these have a significant bearing on vitamin D metabolisation.

Indian Home Remedies For Vitamin D Deficiency

Source: https://www.thehindu.com/life-and-style/fitness/how-to-get-enough-vitamin-d-during-the-coronavirus-lockdown-in-india/article31317980.ece

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How Much Vitamin D Should One Take

How Much Vitamin D Should One Take

DEAR MAYO CLINIC: I have heard different recommendations from different sources regarding vitamin D. One doctor told my husband that everyone living in the Northern Hemisphere should take a vitamin D supplement every day, even in the summer. What do you recommend?

ANSWER: Understanding how much vitamin D you need can be confusing because there are different recommendations about how much vitamin D adults should get. Using the recommendations that fall on the low end, many adults don't get the amount of vitamin D they should. Because few foods contain vitamin D naturally, eating foods fortified with vitamin D and taking a supplement may be beneficial.

Vitamin D is important because it helps your body sustain normal levels of calcium and phosphorus. Because it works as a key that allows your body to absorb calcium, vitamin D plays a critical role in forming and maintaining healthy bones. It also helps keep your muscles, nerves and immune system healthy.

Research suggests that consistently getting enough vitamin D can significantly lower the risk for the bone-thinning disease osteoporosis. Low vitamin D also is associated with falls, multiple sclerosis, rheumatoid arthritis, chronic pain, diabetes, high blood pressure, cardiovascular disease and some cancers. However, an association does not mean low vitamin D causes these conditions, or that taking a vitamin D supplement will adequately prevent or treat them.

Vitamin D is found in some foods, such as egg yolks, cheese, cod liver oil, beef liver and fatty fish like tuna, salmon, sardines, herring and mackerel. But the amount of vitamin D in these foods is quite small. In the U.S., many people get the bulk of their dietary vitamin D from foods that are fortified with it, including milk, cereals and some brands of yogurt and orange juice.

In general, even with fortified foods, diet usually doesn't provide enough vitamin D. And certain health conditions that affect the gastrointestinal tract may decrease the absorption of vitamin D and predispose to low vitamin D blood levels. You also can get vitamin D through direct exposure to sunlight, although the amount of sun you need to get enough vitamin D can vary greatly.

For people in northern climates or those who spend most of their time indoors, adequate exposure to sunlight can be hard to get. Also, if you regularly wear sunscreen with a sun protection factor higher than eight — a wise move to protect your skin from cancer — or if you have a darker skin tone, you may not be absorbing vitamin D, even when you are out in the sunshine.

Recommendations for how much daily vitamin D adults need through diet have changed over the years. Currently, different recommendations exist. The Institute of Medicine has placed the recommended dietary allowance, or RDA, for vitamin D at 600 international units (IU) per day for young adults and 800 IU per day for adults older than 70. Other experts suggest that adults' vitamin D needs are much higher. For example, the Endocrine Society recommends up to 1,500 to 2,000 IU of vitamin D daily for adults.

Mayo Clinic recommends that adults get at least the RDA of 600 IU. However, 1,000 to 2,000 IU per day of vitamin D from a supplement is generally safe, should help people achieve an adequate blood level of vitamin D, and may have additional health benefits. While there are no guidelines for checking your vitamin D blood level, it may be prudent in people with osteoporosis or certain other health conditions. Discuss with your health care provider if it may be beneficial to check your vitamin D level.

If you have ongoing health concerns or a chronic health condition, talk to your health care provider before you begin taking any dietary supplement, including vitamin D. He or she can help you decide if supplements are appropriate for your situation. — Dr. Donald Hensrud, Preventive Medicine, Mayo Clinic, Rochester, Minnesota

How Much Vitamin D Should One Take

Source: https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-q-and-a-how-much-vitamin-d-do-i-need/

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How Long Should You Sit In Sun For Vitamin D

How Long Should You Sit In Sun For Vitamin D

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Are you getting enough sun? In many parts of the world, that might prove difficult during the winter months — and it can impact more than your sunny disposition.When exposed to sunshine, our bodies produce vitamin D, something our bodies need to maintain healthy bones and teeth; support our immune and cardiovascular systems; and stave off certain diseases, like type 1 diabetes. Some reports suggest that roughly three-quarters of American teens and adults might not be getting enough vitamin D. So, how can you turn that number around?

The National Institutes of Health (NIH) makes recommendations for what one's daily intake of vitamin D should be based on age, gender and other factors. The recommendations, in micrograms (mcg), can be summarized as follows:

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• Infants (up to 12 months): 10 mcg daily
• Children (1 to 13 years): 15 mcg daily
• Teens (14 to 18 years): 15 mcg daily
• Adults (19 to 50 years): 15 mcg daily
• Older adults (51 to 70 years): 15 mcg daily
• Seniors (70+ years): 20 mcg daily

So, how can you supplement your vitamin D intake if all that basking in the sun isn't cutting it? Thanks to the Dietary Guidelines for Americans, we've rounded up 10 healthy foods that can help you reach those daily vitamin D goals.

Salmon

Salmon comes in quite a few different varieties — canned sockeye salmon, smoked chinook salmon, canned pink salmon, cooked sockeye salmon, cooked pink salmon and even cooked wild coho salmon — and all of them are chock-full of vitamin D. All of these options will help you hit your goals. After all, a three-ounce serving of canned sockeye salmon contains 17.9 mcg of vitamin D, while a three-ounce portion of cooked sockeye salmon contains 11.1 mcg of vitamin D.

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Smoked Whitefish

Want to change up that salmon intake? Whitefish can help with that. While whitefish are a species of fish, the term also refers to a cluster of types of fish, all of which have a mild, slightly sweet flavor. Some of the most popular "whitefish" include pollock, bass, cod, halibut, grouper and haddock. On average, a standard three-ounce serving of smoked whitefish contains an impressive 10.8 mcg of vitamin D.

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Swordfish

If you're looking for a terrific source of vitamin D, and to break up all that whitefish and salmon, try swordfish. These creatures can grow to be a whopping 1,400 pounds — and nearly 15-feet in length. While you wouldn't want to tangle with one of these in the ocean, encountering it as a nice, grilled steak is a treat. Best of all, a three-ounce portion will provide you with 14.1 mcg of vitamin D.

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Tilapia

Tilapia is a cluster of fish species that aren't found in nature. That is, tilapia is a farmed fish, which makes it pretty inexpensive. This mild species is the fourth most common type of seafood eaten by Americans, in part because of its versatility. We recommend a nice herb-and-parmesan crust, but, any way you slice it (or season it), a three-ounce portion will provide you with 3.1 mcg of vitamin D.

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Canned Tuna

Not into canned food? Well, canned fish should probably be your exception. In fact, canned tuna, in addition to being readily available and inexpensive, can make an abundance of tasty meals, from tuna salad and melts to casseroles. Best of all, a three-ounce serving of light tuna canned in oil contains about 5.7 mcg of vitamin D.

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Mushrooms

The five fish options we've listed above might not have surprised you, but this one might. Many varieties of mushrooms — including portabella, cremini, morels, chanterelles, maitake, and even your basic white button mushrooms — are excellent sources of vitamin D. In fact, half a cup of grilled portabella mushrooms delivers an impressive 7.9 mcg of vitamin D.

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Eggs

Eggs — and, in particular, egg yolks — are one of the easiest, cheapest and quickest ways to nab some vitamin D. However, they may not be the food of choice for folks with high cholesterol. If your diet allows, whip up two scrambled eggs and enjoy getting 5% of your recommended daily intake of vitamin D first thing in the morning.

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Milk

Milk is more than just a great source of calcium. In fact, vitamin D is among its significant nutritional benefits. When it comes to a 16-ounce serving of cow's milk, the vitamin D content varies based on the milk's composition. For example, whole milk contains 6.3 mcg of vitamin D, while 2%, 1% and skim milk all contain 5.9 mcg. Even soy and dehydrated (powdered) milk will help you reach your goals by providing 5.8 mcg and 3.4 mcg of vitamin D respectively.

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Yogurt

Milk is not the only dairy product capable of delivering some serious vitamin D benefits. Of course, the nutritional value of yogurt changes depending upon the variety. For example, Greek-style yogurt contains more protein and less sugar than other types of yogurt. Nonetheless, you can still expect anywhere from 2 to 3 mcg of vitamin D per eight-ounce serving, regardless of the variety of yogurt.

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Pork

So far, you've seen lots of fish and dairy options. You might be wondering, Where's the meat? Well, generally speaking, beef and chicken are not great sources of vitamin D. In fact, if you're a meat lover in search of some vitamin D, pork is your best bet. The nutritional value of pork varies depending upon the cut, method of preparation and more, but you're likely to find between 0.2 to 2.2 mcg of vitamin D in a standard three-ounce serving of pork.

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Resource Links:

• The U.S. Department of Health and Human Services and Department of Agriculture's Dietary Guidelines for Americans
• The National Institutes of Health (NIH)

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How Long Should You Sit In Sun For Vitamin D

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Goutte Vitamine D

Goutte Vitamine D

La vitamine D est une vitamine liposoluble que l'on trouve dans les aliments et que notre corps synthétise au niveau de la peau sous l'action des rayons solaires ou ultraviolets.

Le rayonnement du soleil est la source principale (90%) et déclenche la synthèse de vitamine D3 dans une région profonde de la peau à partir du déhydrocholestérol, le précurseur immédiat du cholestérol. Cette production varie énormément selon la latitude, la saison, l'heure de la journée ou encore la pigmentation de la peau. L'alimentation ne représente que 10% des apports.

La vitamine D existe sous une dizaine de variantes que l'on distingue par un indice numérique. La vitamine D2 (ergocalciferol) provient des végétaux, et son origine est exclusivement alimentaire. La vitamine D3 (cholécalciférol) provient de l'exposition lumineuse et de l'alimentation. Ces deux formes sont les plus actives dans l'organisme.

Les rôles de la vitamine D

La fonction principale de la vitamine D est d'assurer une concentration suffisante de calcium et de phosphore dans le sang, en aidant l'absorption de ces minéraux par l'intestin et en réduisant l'élimination par les reins. Ce soutien permet :

- Une minéralisation optimale des os, du cartilage et des dents

- Une fonction musculaire correcte

- Un fonctionnement optimal des messages nerveux

- Une coagulation normale

En plus de sa fonction phosphocalcique, la vitamine D est impliquée dans l'équilibre hormonal et contribue au fonctionnement du système immunitaire. La vitamine D jouant un rôle dans le fonctionnement correct des cellules de l'immunité, son déficit pourrait être lié à une augmentation du risque d'infections d'origine virale, comme la grippe ou d'autres pathologies hivernales.

Les sources alimentaires de vitamine D

Les huiles végétales (huile de foie de morue, huile de colza, huile de noix, huile de soja, etc), les matières grasses (beurre, lard, foie gras) et les poissons gras (maquereau, saumon, sardine, hareng, etc) sont riches en vitamine D. On peut également citer le chocolat noir, les abats, les œufs et les produits laitiers. La vitamine D étant liposoluble, elle sera mieux absorbée si le repas contient des matières grasses.

Carence et excès en vitamine D

Une carence peut être due à :

- Un manque d'ensoleillement, surtout en période hivernale

- Une alimentation mal adaptée ou un régime particulier (réduction/suppression de la viande, des œufs, du poisson et des produits laitiers)

- Certaines pathologies digestives ou en cas de cancer, d'obésité, d'alcoolisme ou de traitements médicaux (antiépileptiques, corticoïdes, médicaments contre le VIH)

Certaines populations sont à risques : les personnes âgées (un faible apport en vitamine D constitue un risque de perte de densité osseuse et donc d'ostéoporose), les nouveau-nés et les femmes enceintes.

Chez les enfants, une carence en vitamine D peut provoquer le rachitisme, se caractérisant par une mauvaise construction osseuse, un retard de croissance et du développement moteur. Chez les adultes, cela correspond à l'ostéomalacie, provoquant une déminéralisation osseuse, des nausées et des vomissements. Un faible taux en vitamine D provoque une fatigue musculaire, augmente le risque de fracture et serait associé à un risque accru de maladies cardiovasculaires.

Un excès en vitamine D (dose > 10 000 UI/jour) est plus rare mais possible en cas de supplémentation excessive, et peut causer une déshydratation, des nausées, une perte de poids voire une insuffisance rénale.

Supplémentation Adultes & Enfants en vitamine D

Une exposition à la lumière suffisante ainsi qu'une alimentation source de vitamine D permet un apport correct en vitamine D. Cependant, certaines situations justifient une supplémentation, notamment en hiver où le manque d'exposition peut provoquer une carence.

Posologie, recommandations et dosages

La référence nutritionnelle pour la population (RNP) est de 15 microgrammes par jour pour un adulte (sourceANSES : Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail).

La posologie de la vitamine D est fréquemment exprimée en unités internationales (UI) plutôt qu'en microgrammes. Pour les distinguer, il suffit de retenir que 1 microgramme (µg) correspond à 40 UI, ou encore 1 UI= 0,025 µg de vitamine D2/D3.

Précautions d'emploi

La supplémentation n'est pas recommandée chez des sujets avec une hypercalcémie, et à pratiquer avec précaution chez les sujets ayant une maladie rénale.

Quelles formes ?

Parmi les suppléments nutritionnels, on retrouve les vitamines D2 et D3. La vitamine D2 semble n'avoir que 20 à 40% de l'efficacité de la vitamine D3 à maintenir les concentrations sériques, car elle est plus rapidement dégradée dans l'organisme.

La vitamine D existe sous deux formes : la forme ampoule hautement dosée, à prendre en une fois de manière mensuelle ou trimestrielle selon le besoin, et la forme comprimés ou gouttes à prendre quotidiennement.

Optez plutôt pour une vitamine D3 naturelle facilement assimilable en préférant la complémentation journalière. Les vitamines D sous forme huileuse sont plus pratiques, mais si vous choisissez des comprimés, prenez-les avec un repas riche en lipide pour une absorption optimale.

Notre conseil :

- PileJe D3 Biane Gouttes ou capsules marines

- Solgar comprimés à croquer, arôme fraise et banane

Et pour les enfants ?

Exposition solaire correcte, activité physique, calcium et vitamine D sont les ingrédients nécessaires à la santé osseuse de l'enfant. Alors faut-il supplémenter les enfants ? Oui, mais pas sans avis médical !

- Pour les nourrissons :

Ils sont généralement correctement supplémentés. On recommande 1000 à 2000 UI/jour en cas d'allaitement maternel, posologie à laquelle on ajoute soit 600 à 800 UI en cas d'alimentation par lait infantile enrichi en vitamine D, soit 1000 à 1200 UI/j si le lait n'est pas enrichi en vitamine D.

- Pour les enfants :

Pour les plus petits, la supplémentation se fait sous forme de gouttes, après consultation médicale indispensable : Zyma D, Adrigyl, ou pipette poids (Uvestérol). Jusqu'à 18 ans, on recommande 400 UI par jour chez l'enfant sans facteur de risque, et 800 UI par jour chez l'enfant présentant un facteur de risque.

Comment bien donner de la vitamine D en gouttes ?

On place l'enfant en position semi-assise, c'est-à-dire tête fléchie, posée sur le bras, et l'enfant doit être bien réveillé. On place la pipette dans l'intérieur de la joue et on laisse téter l'enfant. Sinon, on peut aussi administrer goutte à goutte le produit pour que l'enfant puisse tranquillement déglutir. Ne pas l'allonger juste après. En cas de reflux, on peut diluer les gouttes dans un fond d'eau ou de lait et l'administrer grâce à une tétine ou un petit biberon.

Goutte Vitamine D

Source: https://lasante.net/fiches-conseil/automedication/forme-vitalite/vitamine-d-comment-choisir.htm

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Does Vitamin D Deficiency Cause Osteoporosis

Does Vitamin D Deficiency Cause Osteoporosis

You already know that your body needs vitamin D to build strong and healthy bones—but that's not the only thing the sunshine vitamin has going for it. Vitamin D helps your body absorb calcium (another crucial bone-builder), plays a role in proper cell growth, and even reduces disease-causing inflammation, according to the National Institutes of Health (NIH).

And the truth is, many of us just simply don't get enough vitamin D. In fact, nearly 42 percent of American adults are deficient, according to a 2011 study published in the journal Nutrition Research. Globally, an estimated 1 billion people don't get adequate amounts of vitamin D.

That's because very few foods naturally contain the stuff. It's called the sunshine vitamin for a reason: a majority of the vitamin D your body produces stems from the sun's ultraviolet rays. That can be a problem if you're consistently wearing sunscreen to protect your skin from cancer or if you live in an area that doesn't get much light—say, the northern U.S. in the dead of winter.

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Luckily, your skin still takes in some vitamin D even when you're wearing sunscreen (and certain foods contain more D than others, so it's not impossible to find in your diet). Neglecting your D intake does come with its own risks, like spiking your risk for high blood pressure and diabetes by two and a half times, says Michael Holick, MD, author of The Vitamin D Solution and professor of medicine, physiology and biophysics at Boston University Medical Center. Vitamin D deficiency can also increase your risk of depression, certain cancers, dementia, and several other health problems.

Think you might be dipping low in D? Here are the top five signs of vitamin D deficiency—and exactly how to make sure you get enough.

You're sweating more than usual

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It's often difficult to tell if newborns are deficient in D, but a sweaty forehead is one of the first noticeable symptoms, Dr. Holick says. The same rings true for adults, so if you're "glowing" while your activity level remains steady, your body temp is close to 98.6°, and your environment isn't too crazy hot, you may want to consider talking with your doctor about getting your vitamin D levels tested.

You're noticeably (and unexpectedly) weak

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Being deficient in vitamin D can leave you feeling exhausted, even when you're able to get enough sleep. In fact, research finds that people who are deficient in D notice improvements in their fatigue after they get their levels back up.

What's more, muscle strength isn't just a matter of pumping iron. One study from the University of Tulsa found that athletes who had inadequate levels of vitamin D in their blood couldn't lift as much weight, run as fast, or jump as far or high, potentially because getting enough vitamin can lead to more powerful muscle contractions.

Harvard researchers have also linked vitamin D supplementation with increased muscle control, resulting in 20 percent fewer falls among adults around 60 years old.

You feel depressed

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Many things can make you feel down, but more and more research is linking true depression with a shortage of vitamin D, especially when it comes to seasonal affective disorder, according to one international review of studies.

While scientists are still trying to figure out why the two are linked, the study authors explain that vitamin D may work in the same areas of the brain—and impact the same feel-good hormones, like serotonin and dopamine—as those that affect your mood.

You're battling random aches and pains

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"It's often subtle, but some experience aches and pains in the bones, known as osteomalacia," says Holick.

Those who are diagnosed with arthritis or fibromyalgia may actually be shy of enough D, as a deficiency can cause joints and muscles to ache. If your discomfort lasts for several weeks, ask your doctor if a vitamin D deficiency could be the cause and if your treatment program should include the vitamin.

You broke a bone

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You stop building bone mass around age 30, and a lack of vitamin D can speed up or worsen osteoporosis, a condition in which your bones become fragile and more prone to fracture, according to research published in The American Journal of Clinical Nutrition.

Foods fortified with vitamin D almost eradicated rickets, a weak bone condition that stems from malnutrition. However, "it's nearly impossible for anyone to satisfy vitamin D needs through diet alone," says Dr. Holick.

How to get enough vitamin D

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Because symptoms of vitamin D deficiency can be caused by several different health problems or conditions, it's important to have your blood tested first to make sure you're truly deficient.

You could easily get all the vitamin D you need through sun exposure, but the American Academy of Dermatology strongly affirms that wearing an SPF of 30 or higher is crucial if you want to prevent the development of various skin cancers. Remember, your skin likely still takes in a bit of vitamin D even when you're wearing SPF, says the NIH.

Your first step, then, is to load your diet with as much vitamin D as you can. Certain fish—like salmon, swordfish, sardines, and tuna—will be your best sources, but you can also find vitamin D in eggs, cheese, mushrooms, or fortified orange juice, milk, cereal, or yogurt.

Then, if you're still consistently experiencing several of the symptoms above, talk to your doctor. He or she can test your D levels and prescribe a supplement if necessary. Most adults need at least 600 international units (IUs) of vitamin D per day (800 IUs if you're over 70), according to the NIH. Many other organizations recommend a higher dose, though, so work with your doctor to find an amount that works best for you and your needs.

Additional reporting by Alisa Hrustic

Karla Walsh Karla Walsh is a Des Moines, Iowa-based freelance writer and level one sommelier who balances her love of food and drink with her passion for fitness.

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Does Vitamin D Deficiency Cause Osteoporosis

Source: https://www.prevention.com/health/a20433909/symptoms-of-vitamin-d-deficiency/

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Do Sad Lights Increase Vitamin D

Do Sad Lights Increase Vitamin D

Many cases of leukemia across the globe may be caused by vitamin D deficiency as a result of low sunlight exposure. This is the conclusion of a new study published in PLOS One.

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Researchers suggest low vitamin D levels, mediated by low UVB exposure, may be responsible for many leukemia cases worldwide.

Leukemia is a cancer of the blood cells, most commonly affecting the white blood cells, or leukocytes, that help fight infection.

There were around 352,000 new cases of leukemia diagnosed worldwide in 2012, and last year, more than 54,000 cases of the cancer were diagnosed in the US alone.

While scientists are still unsure of the exact causes of leukemia, genetic and environmental factors are thought to play a role.

A number of studies have shown that vitamin D metabolites in the blood – known as 25-hydroxyvitamin D, or 25(OH)D, which is an indicator of the body's vitamin D levels – interact with acute myeloid leukemia (AML) cells. What is more, some studies have identified low vitamin D levels in patients with AML.

While vitamin D is found in some foods, including oily fish, cheese and egg yolks, it is present in small amounts. The body's best source of vitamin D is sunlight; ultraviolet B (UVB) radiation from the sun penetrates bare skin, inducing vitamin D synthesis.

In this latest study, coauthor Cedric Garland, adjunct professor in the Department of Family Medicine and Public Health at the University of California-San Diego, and colleagues set out to investigate whether low UVB exposure and low vitamin D levels are associated with leukemia risk.

Garland and colleagues analyzed data from the International Agency for Cancer Research's (IARC) Global Cancer (GLOBOCAN) 2012 database.

Fast facts about leukemia

• Leukemia accounted for around 3.3% of all new cancer cases in the US last year
• Around 1.5% of men and women in the US will be diagnosed with leukemia at some point in their lives
• Around 58.5% of people with leukemia survive 5 years or more after diagnosis.

Learn more about leukemia

The team looked at the age-adjusted leukemia incidence rates for 172 countries, and the cloud cover-adjusted UVB irradiance for each country was assessed using data from the International Satellite Cloud Climatology Project.

The researchers found that individuals living in countries farther away from the equator, such as the US, Australia, New Zealand, Canada and Ireland, were at least twice as likely to have leukemia as people living in countries closes to the equator, such as Nigeria, Bolivia, Samoa and Madagascar.

The association remained after accounting for sex-specific life expectancy and altitude, according to the authors.

The team explains that individuals who live farther away from the equator are exposed to solar energy that has traveled farther through the Earth's atmosphere, which reduces the amount of UVB radiation that reaches the skin.

As such, the researchers say it is "plausible" that much of the leukemia burden across the globe is a result of low vitamin D levels caused by low UVB exposure.

"Skin photosynthesis accounts for a large proportion of 25(OH)D concentration. As a result, the inverse association between cloud-adjusted solar UVB exposure and incidence rates is likely to be mediated by circulating 25(OH)D, which is highly dependent on solar UVB irradiance," they explain, adding:

"Importantly, these results suggest that increased levels of UVB irradiance and vitamin D may help prevent development of leukemia."

While the team says some key strengths of their study are the inclusion of thousands of leukemia cases from hundreds of countries and the fact the findings are consistent with results from previous studies, they admit there are some limitations.

For example, they were unable to control for other factors that may fuel differences in leukemia risk between countries. "Some of these confounders may be very influential on risk for leukemia," they note.

Still, Garland and colleagues believe the association between low UVB exposure, low vitamin D levels and leukemia warrants further investigation.

While vitamin D deficiency has been linked to a number of health problems, a recent study reported by Medical News Today suggests higher monthly doses of the vitamin may increase the risk of falls among seniors.

Do Sad Lights Increase Vitamin D

Source: https://www.medicalnewstoday.com/articles/304797

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