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Vitamin D toxicity, or hypervitaminosis D, is the toxic state of an excess of vitamin D. The normal range for blood concentration of 25-hydroxyvitamin D in adults is 20 to 50 nanograms per milliliter (ng/mL).
The Office of Dietary Supplements recommends daily vitamin D intakes of 600 IU (15 mcg) ... established daily upper limits (ULs) of what is safe to consume. People 9 and older, for example, may ...
While some studies have found that vitamin D 3 raises 25(OH)D blood levels faster and remains active in the body longer, [44] [45] others contend that vitamin D 2 sources are equally bioavailable and effective for raising and sustaining 25(OH)D. [46] [47] If digestive disorders compromise absorption, then intramuscular injection of up to ...
Taking too much vitamin D can be toxic in rare cases, as with an 89-year-old U.K. man who died last year in part from vitamin D toxicity (though he did have several underlying conditions).
Elemental mEq Elemental mEq to compound weight Potassium (reference) K 39.098 g/mol 1 (K +) 20 mEq potassium 20*39.098/1=782 mg Potassium citrate monohydrate C 6 H 7 K 3 O 8: 324.41 g/mol 3 (K +) Liquid potassium citrate/gluconate therapy for adults and teenagers taken two to four times a day [3] 20 mEq potassium 20*324/3=2160 mg Potassium ...
Lower limit Upper limit Lower limit Upper limit Vitamin A: 30 [23] 65 [23] μg/dL Vitamin B 9 (Folic acid/Folate) – Serum: Age > 1 year: 3.0 [126] 16 [126] 5 [127] ng/mL or μg/L 6.8 [128] 36 [128] 11 [128] nmol/L Vitamin B 9 (Folic acid/Folate) – Red blood cells: 200 [126] 600 [126] ng/mL or μg/L 450 [128] 1400 [128] nmol/L Pregnant: 400 ...
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.
Multivitamins nutrition facts label showing that the international unit of, for example, vitamins D and E correspond to different gram values. In pharmacology, the international unit (IU) is a unit of measurement for the effect or biological activity of a substance, for the purpose of easier comparison across similar forms of substances.