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147 results
  1. Beta-Carotene 
    https://medlineplus.gov/druginfo/natural/999.html
    Beta-carotene belongs to a group of colored pigments called carotenoids. It's converted to vitamin A in the body and found in many fruits and vegetables. Beta-carotene and other red, orange, and yellow pigments called ...
  2. Beta-carotene blood test 
    https://medlineplus.gov/ency/article/003571.htm
    The beta-carotene test measures the level of beta-carotene in the blood. ... Beta-carotene is found in certain foods. It breaks down to become vitamin A in the body. Your ...
  3. Lung Cancer Prevention (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK66017
    ... Associated With an Increased Risk of Lung Cancer Beta-carotene supplementation in current smokers Based on solid evidence, ... That Do Not Decrease Risk of Lung Cancer Beta-carotene in nonsmokers Based on solid evidence, nonsmokers who ...
  4. Lung Cancer Prevention (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK66063
    ... air pollution increases the risk of lung cancer. Beta carotene supplements in heavy smokers Taking beta carotene supplements ( ... do not decrease the risk of lung cancer: Beta carotene supplements in nonsmokers Studies of nonsmokers show that ...
  5. List of Observational Cohorts and the Screened Publications - Concordance Between the Findings of Epidemiological ... 
    https://www.ncbi.nlm.nih.gov/books/NBK138251
    ... 7 :221–5. [ PubMed : 9521437 ] The Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study Albanes D, Heinonen OP, Huttunen JK, et al. Effects of alpha-tocopherol and beta-carotene supplements on cancer incidence in the Alpha-Tocopherol ...
  6. Skin Cancer Prevention (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK66059
    ... of the controlled-trial environment.[ 18 ] Chemopreventive agents Beta carotene In the Physicians’ Health Study, 21,884 male ... to take 50 mg doses of daily oral beta carotene versus placebo in a 2 × 2 factorial trial ...
  7. Vitamin A 
    https://ods.od.nih.gov/factsheets/VitaminA-Consumer
    ... A carotenoid in foods and dietary supplements is beta-carotene . How much vitamin A do I need? The ... retinyl acetate or retinyl palmitate (preformed vitamin A), beta-carotene (provitamin A), or a combination of preformed and ...
  8. Vitamin A 
    https://medlineplus.gov/ency/article/002400.htm
    ... The most common type of provitamin A is beta-carotene. Vitamin A is also available in dietary supplements. ... retinyl acetate or retinyl palmitate (preformed vitamin A), beta-carotene (provitamin A) or a combination of preformed and ...
  9. Stomach (Gastric) Cancer Prevention (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK65822
    ... been calculated and indicate possible protective effects of beta carotene, vitamin A, vitamin E, selenium, vitamin C, or ... the gastric cancer mortality rate after supplementation with beta carotene, vitamin E, and selenium.[ 24 ] The population studied, ...
  10. Age-related macular degeneration (AMD): Do dietary supplements prevent AMD? - InformedHealth.org - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK315802
    ... vitamins, such as vitamin C, vitamin E and beta-carotene . They may have copper or zinc in them ... have been carefully studied are vitamin E and beta-carotene . Studies involving over 75,000 participants have shown ...
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