In the normal state, blood has no business anywhere except in the confines of the heart and blood vessels and in the sinusoids of the marrow, liver, and spleen. Of the average 5 L of blood, only 2.25 L, or 45%, consists of cells.
Take-away: Calcium and magnesium may best be taken in the evening with food or before nighttime sleep. Since zinc should not be taken with calcium and apart from iron, it is most useful if taken earlier in the day either slightly before/after food. Iron should ideally be taken on an empty stomach and separately from other multivitamin/multimineral combinations.
However, taking chelated zinc lozenges or using zinc nasal spray at the first signs of illness has not been adequately proven to dramatically reduce the duration and severity of symptoms. More research is needed to better understand what forms of supplemental zinc may be most effective against viruses and bacteria.inc is an essential mineral needed by your body in relatively small amounts, 20 mg or less per day, depending on your body size.