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Read on to discover more about vitamin D supplements, the benefits of vitamin D, and how to supplement safely. NOW offers limited options for certain dietary restrictions, including those following vegan or vegetarian diets. Colecalciferol doses are measured in international units (IU). 1 microgram of vitamin D is the same as 40IU. Adult loading doses With more than 650 supplements to choose from, NOW vitamins and supplements make it easy to round out your diet or increase your intake of specific nutrients.
If you forget to take your daily or weekly dose of colecalciferol, take it as soon as you remember, unless it's nearly time for your next dose. In this case, leave out the missed dose and take your next dose at the usual time. Don't overdo it as vitamin D can build up in the body - 100mcg (4000IU) is the maximum safe daily dose for adults. Do not take more than 100 micrograms (4,000 IU) of vitamin D a day as it could be harmful. This applies to adults, including pregnant and breastfeeding women and the elderly, and children aged 11 to 17 years.
With calcium being drawn from the skeleton in the absence of vitamin D, this can lead to weakened bones. It may also prevent the growth of strong new bones, and increases risk of osteoporosis. Research also shows a correlation between vitamin D intake and reduced risk of arthritic pain and joint conditions. Therefore, vitamin D is vital for healthy bones and joints (2). Immune Support 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.
As vitamin D is a fat-soluble vitamin, it is stored in the liver and body fat. Therefore, vitamin D levels can build up in the body which, although rare, can be dangerous. What are the side effects of vitamin D3? Danik JS, Manson JE. Vitamin D and cardiovascular disease. Curr Treat Options Cardiovasc Med. 2012 Aug;14(4):414–24. doi:10.1007/s11936-012-0183-8 van Ballegooijen AJ, et al. (2017). The synergistic interplay between vitamins D and K for bone and cardiovascular health: A narrative review. In spring and summer, many adults and children can obtain adequate amounts of vitamin D from exposure to sunlight. However, continuing to supplement is still considered safe. It is never recommended to consume over 100ug of vitamin D3 per day. NOW supplements that are Informed Sport certified may be ideal for competitive athletes since they have been third-party tested to verify that they’re free of banned substances.But others may not have any symptoms until it's too late, for example bowed legs or poor growth in children. Taking between 10 and 50mcg a day is unlikely to cause harm, but bear in mind more is not necessarily better.
But since it's difficult for people to get enough vitamin D from food alone, everyone (including pregnant and breastfeeding women) should consider taking a daily supplement containing 10 micrograms of vitamin D during the autumn and winter. Marcinowska-Suchowierska E, Kupisz-Urbańska M, Łukaszkiewicz J, Płudowsk P, Jones G. Vitamin D toxicity–a clinical perspective. Front Endocrinol (Lausanne). 2018;9:550. doi:10.3389/fendo.2018.00550If you're unsure how to take colecalciferol, ask your doctor or your pharmacist. Take your medicine exactly as they advise you to. Capsules and tablets NOW Foods was founded in 1968 by Elwood Richard, an entrepreneur and physical chemist who owned a small chain of health stores in Chicago. On the other hand, because most NOW supplements are tested in-house, this brand might not be the best fit for people who prefer purchasing supplements that are tested by an independent lab. 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. During the autumn and winter, you need to get vitamin D from your diet because the sun is not strong enough for the body to make vitamin D.
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