Vitamin A is necessary to maintain good vision, skin and immune functioning. Vitamin A supplements may slow the progression of macular degeneration, enhance healing after laser eye surgery, and reduce the risk of certain cancers. At the same time, getting too much vitamin A can be dangerous.
So how do you know if you need a vitamin A supplement and, if you do, how can you tell which is best?
In this comprehensive report about vitamin A supplements, you'll get test results and quality ratings for 11 supplements (two of which failed to contain all the vitamin A they claimed), including products tested through CL's voluntary Quality Certification Program. You'll learn:
- Which vitamin A supplements passed or failed ConsumerLab.com's testing and review and which were selected as CL's Top Picks
- Which vitamin A supplements and which products exceed tolerable intake limits and, therefore, pose a greater risk of causing adverse effects
- Who should take a vitamin A supplement, and what it can and cannot do for your health
- Which cod liver oils passed our tests for freshness and purity
- Direct comparisons and quality ratings of vitamin A supplements, including cost comparisons
- How vitamin A supplement labels are changing from IUs to micrograms RAE (retinol activity equivalents) and what you need to know when reading them
- Recommended daily intake and dosages of vitamin A
- Which foods are rich in vitamin A or beta-carotene
- Cautions when using vitamin A, including potential drug interactions, interactions with other supplements, potential side-effects of vitamin A from retinol forms (such as retinyl palmitate) and beta-carotene