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AI for pregnancy is 30 μg/day. AI for lactation is 45 μg/day. AI for men is 35 μg/day for ages 14–50 and 30 μg/day for older. For infants to children ages 1–13 years, the AI increases with age from 0.2 to 25 μg/day. As for safety, the IOM sets Tolerable upper intake levels (ULs) for vitamins and minerals when evidence is sufficient. In ...
Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A and selenium) that can be harmful in large amounts. This is the highest level of sustained daily nutrient consumption that is considered to be safe for, and cause no side effects in, 97.5% of healthy individuals in each life stage and sex group ...
Based on risk assessment, a safe upper intake level of 250 μg (10,000 IU) per day in healthy adults has been suggested by non-government authors. [ 6 ] [ 7 ] Blood levels of 25-hydroxyvitamin D necessary to cause adverse effects in adults are thought to be greater than about 150 ng/mL, leading the Endocrine Society to suggest an upper limit ...
Vitamin C megadosage is a term describing the consumption or injection of vitamin C (ascorbic acid) in doses well beyond the current United States Recommended Dietary Allowance of 90 milligrams per day, and often well beyond the tolerable upper intake level of 2,000 milligrams per day. [1] There is no strong scientific evidence that vitamin C ...
The U.S. Food and Nutrition Board sets Tolerable Upper Intake Levels (known as ULs) for vitamins and minerals when evidence is sufficient. ULs are set a safe fraction below amounts shown to cause health problems. ULs are part of Dietary Reference Intakes. [81] The European Food Safety Authority also reviews the same safety questions and set its ...
As for safety, the academy sets tolerable upper intake levels (known as "upper limits") for vitamins and minerals when evidence is sufficient. Vitamin K has no upper limit, as human data for adverse effects from high doses are not sufficient. [5] In the European Union, adequate intake is defined the same way as in the US.
The European Union and the governments of several countries have established Tolerable upper intake levels (ULs) for those vitamins which have documented toxicity (see table). [ 11 ] [ 59 ] [ 60 ] The likelihood of consuming too much of any vitamin from food is remote, but excessive intake ( vitamin poisoning ) from dietary supplements does occur.
Tolerable Upper Intake Level (UL) Harmful effects Vitamin B 1: None [22] No known toxicity from oral intake. There are some reports of anaphylaxis caused by high-dose thiamin injections into the vein or muscle. However, the doses were greater than the quantity humans can physically absorb from oral intake. [22] Vitamin B 2: None [23]