How much RPO to supply the RDA for vitamin A?
The carotenoid composition of RPO resembles that of tomatoes, with beta-carotene (60%) and alpha-carotene (30%) forming the two main provitamin A carotenoids. As a potential source of vitamin A in the body, RPO is equivalent to about 7,000 retinol equivalents (RE) per 100 grams. This means that one teaspoon (6 grams) of RPO will supply the recommended dietary allowance (RDA) for vitamin A of a child (350-400 RE), while double this amount (12 grams) would supply the RDA for an adult (800 RE).
Nature has it that the body converts whatever vitamin A it needs (on top of preformed vitamin A from foods of animal origin) from provitamin A carotenoids and there's no danger of "excess conversion".
