s recommended to be taken with meals. If you want a
powder, try something like Emergen-C, a high dose
powder with each dose enclosed in a separate packet protecting it from oxidation. Vitamin C begins to oxidize instantly on contact with the air, another reason not to dissolve a tablet in water first. Another option is to take it in capsule form, avoiding the fillers and binders. Magnesium, on the other hand, can help with constipation.