Identify three types of studies researchers have performed to explore the effect of B-vitamin intake

Identify three types of studies researchers have performed
to explore the effect of B-vitamin intake on physical activity. 21. Calculate
the DFE in the diet of an individual who consumes the following: Food folate =
70 _g/day; synthetic folic acid from fortified foods = 224 _g/dayHow
many DFE is this person getting per day? What percentage of this person’s total
DFE is coming from synthetic versus food folate?