Vitamin D 4,000 IU Tablets, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Tablets - Full Year Supply

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People who cover their skin – people who cover up when outside are unable to make enough vitamin D as their skin isn't exposed to sunlight. Taking too much vitamin D over a long period of time can cause calcium to build up in the body, which can actually weaken bones and damage your heart and kidneys. This is known as hypercalcaemia. Vitamin D is very important for bone health and has been linked with immune function and protection against certain cancers ( 9, 10).

One of the main signaling processes has to do with increasing the absorption of calcium from your digestive system and bones ( 3). Breastfed babies should also have between 8.5-10mcg a day. Babies on formula milk don't need an additional supplement as it already contains vitamin D. You can find out more in our guide to vitamin D supplements for babies and children. Children aged 1 to 10 years should not have more than 50 micrograms (2,000 IU) a day. Infants under 12 months should not have more than 25 micrograms (1,000 IU) a day.But between October and early March we do not make enough vitamin D from sunlight. Read more about vitamin D and sunlight. Some foods, such as cereals and yoghurt drinks, are also fortified with vitamin D, but these are usually low amounts, so it's still worth opting for a supplement to ensure you get enough. Tripkovic L, Lambert H, Hart K, et al. Comparison of vitamin D2 and vitamin D3 supplementation in raising serum 25-hydroxyvitamin D status: a systematic review and meta-analysis. Am J Clin Nutr. 2012 Jun;95(6):1357–64. doi:10.3945/ajcn.111.031070 Also known as cholecalciferol, which is the same form of Vitamin D that your skin produces naturally when exposed to sunlight & WeightWorld Vitamin D3 tablets are a potent source of cholecalciferol. So, in addition to your healthy diet and daily exposure to sunlight, you can consider taking a high-strength Vitamin D3 supplement to top up your normal levels of vitamin D3 in its purest form. If you want to read more about vitamin D, we have a wealth of articles on our health hub such as what the difference is between vitamin D2 and vitamin D3, why vitamin D is important, which type of vitamin D is best for you, how much vitamin D you need, if you're getting enough vitamin D and how to identify vitamin D deficiency.

Taking too many vitamin D supplements over a long period of time can cause too much calcium to build up in the body (hypercalcaemia). This can weaken the bones and damage the kidneys and the heart. Children aged 1 to 4 years old should be given a daily supplement containing 10 micrograms of vitamin D throughout the year.This may lead to elevated levels of “free” vitamin D in your body, which may travel inside cells and overwhelm the signaling processes affected by vitamin D. Both are absorbed in the small intestine, although some studies have shown vitamin D3 supplements are better at raising vitamin D levels compared with D2 supplements. But others may not have any symptoms until it's too late, for example bowed legs or poor growth in children. However, when vitamin D intake is extremely high, your levels can become so high that there isn’t any room left on the receptors or carrier proteins.