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Best Vitamin A for General Health

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Clinical dose: 700–1500 mcg

Vitamin A and general health

Vitamin A plays a supporting role in general health. Exists as preformed retinol (animal sources) and provitamin A carotenoids like beta-carotene (plant sources). Retinyl palmitate and retinyl acetate are common supplemental forms with high bioavailability.

Effective dosing

Most evidence supports 700–1500 mcg of vitamin a daily. Products below this range may not deliver meaningful results.

What the research says

The clinical evidence for vitamin a in general health is strong. Essential for vision via retinal pigment formation; toxicity risk above RDA in preformed retinol, not beta-carotene Learn more