Print. Choline is a vitamin-like nutrient, and in health-food stores and on the Internet many claims are made for its potential benefits. The National Academy of Sciences designated choline as âessentialâ and suggested specific daily intakes in 1998.
You see, one of the forms of vitamin D, i.e. vitamin D2 is broken down by the body into different substances. Some of these substances can be very harmful for the body. Vitamin D3 is broken down by the body into a substance called calcitrol, which actually has very important cancer fighting properties.
Human beings do not make vitamin D2, and most healthy fish contain vitamin D3. Vitamin D3 is the same price as vitamin D2. Vitamin D3 may be less toxic than D2 because higher concentrations of D2 circulate in the blood when consumed (compared to vitamin D3).itamin D3 is the same price as vitamin D2. Vitamin D3 may be less toxic than D2 because higher concentrations of D2 circulate in the blood when consumed (compared to vitamin D3).