The following recommendations represent guidelines on how your vitamin D blood levels could increase when taking the respective amount of vitamin D. Therefore, this information should not be regarded as a guarantee for the specified values. Between late March/early April to the end of September, most people can make all the vitamin D they need through sunlight on their skin and from a balanced diet.

Conversely, if the soft gel capsule was described as '150mcg of Vitamin A as retinol' and I wanted to convert to IU, I would divide it by 0.3.iv] Papadimitriou, Dimitrios T. “The Big Vitamin D Mistake.” Journal of preventive medicine and public health = Yebang Uihakhoe chi vol. 50,4 (2017): 278-281. doi:10.3961/jpmph.16.111

IU is an abbreviation for International Unit. 1ug is equal to 40IU. Both are measurements of active vitamin D concentration. Some people have medical conditions that mean they may not be able to safely take as much. If in doubt, you should consult your doctor.Vitamin D is one of the body’s most important vitamins, helping it with a variety of tasks: Vitamin D contributes to the normal function of the immune system and is very important for the body’s structural system, maintaining normal bone and muscle function. Vitamin D3 also contributes to the normal absorption and utilisation of calcium and phosphorus. Read the article below to find out more aboutvitamin A function, its sources, the consequences of vitamin A deficiency, and vitamin A toxicity. We will also answer the question of how much vitamin A per day you should eat and explain how beta carotene to vitamin A conversion works. formula-fed and are having less than 500ml (about a pint) of infant formula a day, as infant formula is already fortified with vitamin D

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. According to the Endocrine Society, vitamin D deficient adults should be treated with 50,000 IU (1250 ug) of vitamin D weekly [equal to 7143 IU (179 ug) daily] for eight weeks to achieve a blood level greater than 30 ng/mL (75 nmol/L). Maintenance therapy thereafter should be at least 1500-2000 IU (38-50 ug) per day. This value is officially considered to be normal. However, vitamin D experts still consider this to be too low. Still, this level of vitamin D is sufficient to ensure that calcium is adequately absorbed, making the risk of broken bones quite low.Vitamin E: 1 IU is the biological equivalent of about 0.67 mg d-alpha-tocopherol, or 0.9 mg of dl-alpha-tocopherol.

The Department of Health and Social Care recommends that adults and children over 4 take a daily supplement containing 10 micrograms of vitamin D throughout the year if they:However, people who don’t live in sunny countries need to consume more vitamin D through foods and supplements ( 26). As vitamin A has many functions in the human body, itsdeficiency is associated with serious health problems. One of the earliest and the most specific manifestations of vitamin A deficiency is impaired vision, particularly in dim light, also known as night blindness. If the deficiency persists, further eye damage may occur, which can eventually result in total blindness. Other consequences of vitamin A deficiency include impaired immunityand various skin problems. Moreover, the right amounts of vitamin A are extremely important for pregnant and breastfeeding women to support normal child development. xx] Richardson, David P, and Julie A Lovegrove. “Nutritional status of micronutrients as a possible and modifiable risk factor for COVID-19: a UK perspective.” The British journal of nutrition, 1-7. 20 Aug. 2020, doi:10.1017/S000711452000330X