Zinc does not deplete vitamin a. Rather, zinc is needed to make retinol binding protein, which mobilizes vitamin a from the liver so that your body can utilize it.
Caffeine has been shown to negatively affect the efficiency in which the body metabolizes Vitamin D. While the caffeine does not actually deplete the body's store of vitamin D the presence of...
Your body needs B12 to have brain and nervous system functions. B12 is commonly used for the metabolism of a cell, DNA synthesis / regulation, and energy production (from fatty acids). Some people...
It depends on the rice. Many of the nutrients in brown rice are in the bran, which doesn't wash off easily, so washing brown rice doesn't seriously deplete the vitamins. White rice is milled; the...