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Vitamin A status involves eye health via two separate functions. Retinal is an essential factor in rod cells and cone cells in the retina responding to light exposure by sending nerve signals to the brain. An early sign of vitamin A deficiency is night blindness. [6] Vitamin A in the form of retinoic acid is essential to normal epithelial cell ...
Since carotenes are hydrophobic, sufficient fat must be present in the diet for golden rice (or most other vitamin A supplements) to alleviate vitamin A deficiency. Moreover, this claim referred to an early cultivar of golden rice; one bowl of the latest version provides 60% of Recommended Dietary Allowance (RDA) for healthy children. [ 28 ]
Dietary β-carotene is a provitamin A compound, converting in the body to retinol (vitamin A). [8] In foods, it has rich content in carrots, pumpkin, spinach, and sweet potato. [8] It is used as a dietary supplement and may be prescribed to treat erythropoietic protoporphyria, an inherited condition of sunlight sensitivity. [9]
Vitamin A in food exists either as preformed retinol – an active form of vitamin A – found in animal liver, dairy and egg products, and some fortified foods, or as provitamin A carotenoids, which are plant pigments digested into vitamin A after consuming carotenoid-rich plant foods, typically in red, orange, or yellow colors. [28]
“Vitamin B also plays a role in skin cancer prevention when used consistently,” adds Dr. Collins. Side effects: Niacinamide is generally considered safe and well-tolerated by most skin types.
Compared to cow's milk, only 12% of the milk-alternative products contain comparable or greater amounts of calcium, vitamin D and protein. Related: The 7 Healthiest Milks, According to a Dietitian
A 2018 meta-analysis found that both dietary and circulating α-carotene are associated with a lower risk of all-cause mortality.The highest circulating α-carotene category, compared to the lowest, correlated with a 32% reduction in the risk of all-cause mortality, while increased dietary α-carotene intake was linked to a 21% decrease in the risk of all-cause mortality.
"Leafy greens are packed with vitamin K, which supports memory and cognitive function," she says. They’re also a fantastic source of folate, a B vitamin linked to lower odds of dementia.