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The US National Academy of Medicine estimates upper limits for vitamins and minerals when evidence for a true limit is sufficient. For biotin, however, there is no upper limit because the adverse effects of high biotin intake have not been determined. [2] The EFSA also reviewed safety and reached the same conclusion as in the United States. [11]
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]
Discover what this essential B vitamin can do for your body and whether you need more in your diet.
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.
Daily vitamin B 6 tolerable upper limits for adults as established by the agency Agency Upper limit Notes Reference National Health Service (NHS) United Kingdom 10 mg/day [44] Norwegian Scientific Committee for Food and Environment (VKM) 25 mg/day In 2017 VKM proposed to raise this to 25 mg/day, it was previously 4.2 mg/day. [40]
Vitamin B 6 Drug class Pyridoxal 5'-phosphate, the metabolically active form of vitamin B 6 Class identifiers Use Vitamin B 6 deficiency ATC code A11H Biological target enzyme cofactor Clinical data Drugs.com International Drug Names External links MeSH D025101 Legal status In Wikidata Vitamin B 6 is one of the B vitamins, and is an essential nutrient for humans. The term essential nutrient ...