For example, the antibiotic chloramphenicol can interfere with the effects of vitamin B, reducing the expected hematologic response to B therapy
Another small, randomized, double-blind trial in 93 individuals with low vitamin D status found no additional benefit of B-vitamin supplementation (50 mg/day of vitamin B6, 0.5 mg/day of folic acid, and 0.5 mg/day of vitamin B 12 ) on markers of bone health over a one-year period beyond that associated with vitamin D and calcium supplementation
Your doctor will ask what you take: prescription vitamins, over-the-counter tablets, multivitamins, injections at any point in the past year, protein shakes, fortified cereals, energy drinks
In those cases: Vitamin C is absorbed by immune cells and tissues