Vitamin A
A nutrient subject connected to plants in this knowledge system. Food sources first. Numbers belong on USDA FoodData Central and DRI tables — not invented here.
Food first
If ordinary food already covers vitamin A in your pattern, you likely do not need a specialty bottle for this nutrient. If intake is uncertain, the next question is whether food can still solve it — growing, cooking, or buying the plant — before a capsule.
Plant foods linked from the corpus
These links exist because the plant page names vitamin a as a well-known qualitative constituent — not because we fabricated milligrams.
Sources
- USDA FoodData Central — look up the specific food
- NIH Office of Dietary Supplements — nutrient fact sheets (verify current page)
- dietaryguidelines.gov — pattern context (2025–2030 framework)