Vitamin A
Carrot Nutrition: Beta-Carotene, Eye Health, and the Fat Absorption Rule
Carrots are best understood through beta-carotene bioavailability: what you absorb depends on preparation and fat intake.
BeginnerFat-Soluble Vitamins A, D, E, and K: Why They Behave Differently from B and C
Fat-soluble vitamins A, D, E, and K store in body fat and liver, require dietary fat for absorption, and can build up to toxic levels. Here's the science.
BeginnerSweet Potato Nutrition: Carotenoid Strength and Glycemic Context
Sweet potatoes are rich in provitamin A carotenoids and can fit glycemic goals depending on preparation and portion.
BeginnerVitamin A and Retinol: How Your Body Uses It and Why Too Much Is Toxic
How vitamin A works in the body, why retinol and beta-carotene aren't equal, what RAE units mean, and why preformed vitamin A turns toxic past the upper limit.
Intermediate