Softgels · 90 softgels · 90 servings · $0.24/serving
NOW Foods Natural Beta Carotene delivers 25,000 IU of provitamin A derived from Dunaliella salina algae, a naturally occurring source that provides a mixed carotenoid profile alongside the primary beta carotene compound. It supports healthy vision, skin integrity, and immune function, and is well-suited for adults seeking a plant-derived alternative to preformed vitamin A.
Why It's Worth Considering: The natural algae-sourced form provides a broader carotenoid complex compared to synthetic beta carotene isolates, which may more closely reflect whole-food carotenoid intake.
Preformed vitamin A (retinol/retinyl palmitate) is immediately active — your body uses it directly. Beta-carotene is a provitamin A that must be converted to retinol. Conversion is inefficient (6:1 ratio) and varies by genetics — up to 45% of people are poor converters. For therapeutic use, preformed retinol or retinyl palmitate is preferred.
The tolerable upper limit is 10,000 IU/day of preformed vitamin A for adults. Most supplements provide 3,000-5,000 IU. Cod liver oil provides natural vitamin A + D together. Beta-carotene does not have a toxic upper limit (excess is stored harmlessly). Pregnant women should not exceed 5,000 IU preformed A.
Yes — vitamin A is fat-soluble and accumulates in the liver. Chronic intake above 25,000 IU/day can cause toxicity (headache, nausea, liver damage, bone loss). This is only a concern with preformed vitamin A supplements, not beta-carotene or food sources. Stay within recommended doses and avoid combining multiple A-containing supplements.
Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for NOW Foods - Natural Beta Carotene 25,000IU. This data will be available soon.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
