Vitamin A mcg RAE Formula

Equation for calculate vitamin a mcg rae is,

Vitamin A mcg RAE (pre-formed retinol) = Vitamin A IU x 0.3
Vitamin A mcg RAE (beta-carotene from food) = Vitamin A IU x 0.05
Vitamin A mcg RAE (Plant source: beta-carotene from supplements) = Vitamin A IU x 0.3
Vitamin A mcg RAE (Plant source: alpha-carotene or beta-cryptoxanthin from food) = Vitamin A IU x 0.025