The magnesium supplements best absorbed in the gut are magnesium aspartate, magnesium citrate, magnesium lactate, and magnesium chloride. The upper limit for vitamin D intake from all sources (food ...
Wool sources of 7-dehydrocholesterol are used ... The minimum amount of vitamin D needed to prevent rickets is 100 IU (2.5 mcg) per day in infants with little to no sun exposure.