(Do you mean Vitamin A—https://www.givewell.org/charities/helen-keller-international? The B vitamins are water-soluble, with the body only being able to absorb a relatively “normal” amount per day in most instances. So I think that supplements are a harder approach for Vitamin B when compared to, e.g., food fortification approaches).
(Do you mean Vitamin A—https://www.givewell.org/charities/helen-keller-international? The B vitamins are water-soluble, with the body only being able to absorb a relatively “normal” amount per day in most instances. So I think that supplements are a harder approach for Vitamin B when compared to, e.g., food fortification approaches).
Sorry, my bad. Corrected.