7-Day Vitamin A Optimization Plan
Retinol (Animal sources) is active immediately. Carotenoids (Plant sources) must be converted. Eat both.
Orange vegetables (sweet potato, carrot, pumpkin) are the densest sources of beta-carotene.
Vitamin A is fat-soluble. Eating carrots without fat absorbs almost no Vitamin A. Always pair with oil/butter.
Liver is the most concentrated source of Retinol. A small amount goes a long way.
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Analyze My Results NowSome people convert plant carotenes to retinol poorly (BCMO1 gene). If you have symptoms of deficiency, prioritize animal sources (eggs, dairy, liver).
Zinc is required to transport Vitamin A from the liver. Ensure adequate zinc intake (meat, seeds).
1. Tanumihardjo, S. A. (2011). 'Vitamin A: biomarkers of nutrition for development.' AJCN.
2. Tang, G. (2010). 'Bioconversion of provitamin A carotenoids to vitamin A in humans.' AJCN.