In 1981, Peto et al. Beta-carotene, with or without vitamin E, may reduce lung cancer risk, possibly by preventing DNA damage at the early stage of cancer development (x, x, x, x). Additional studies have reported serum beta-carotene to be inversely associated with the incidence of cataract formation (16); higher intake of β-carotene (while avoiding vitamin C supplements) to be associated with lowered risk of acquired hearing loss in women (40); and high dietary intake to have a protective effect on buccal cells from relative telomere length (RTL) shortening (41). No Benefit of beta-Carotene Supplementation, alpha-Tocopherol beta-Carotene Cancer (ATBC) Prevention Study. Beta-carotene helps to stop cell damage. Ethanol: Hepatotoxic effects of ethanol may be potentiated by high doses of beta-carotene. Posted in Breast Cancer, Cancer risk, Vitamin and Mineral Supplements | Tagged anti-oxidants and cancer treatment, beta-carotene and cancer, danger of beta-carotene, danger of Vitamin C supplements, danger of Vitamin E, folate and cancer, vitamin supplement danger. The provitamin beta-Carotene is a plant pigment that converts to the active forms of vitamin A (ie, retinal or retinoic acid) intracellularly.1 Vitamin A is critical for immune function, cell signaling, reproduction, vision, and formation/maintenance of many organs. It is an extremely important question considering a few statistics. A large-scale cohort study found that alcohol consumption has a negative effect on the chemopreventive activity of beta-carotene. This Web site — Information About Herbs, Botanicals and Other Products — is for general health information only. Memorial Sloan Kettering does not assume any risk whatsoever for your use of this website or the information contained herein. Earlier trials, notably the Alpha-Tocopherol, Beta-Carotene Prevention (ATBC) Study 1 and the Beta-Carotene and Retinol Efficacy Trial (CARET) study 2 demonstrated an increase in all-cause mortality correlated with beta-carotene intake in people at risk for lung cancer. From basic information about cancer and its causes to in-depth information on specific cancer types – including risk factors, early detection, diagnosis, and treatment options – you’ll find it here. A question we are often asked is: Should I take vitamins during cancer treatment? β-Carotene Supplementation and Lung Cancer Incidence in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study: The Role of Tar and Nicotine. Those people should not take beta-carotene, except under a doctor's supervision. Hence, dietary intake of beta carotene rich foods lowers the risk of breast, colon, oral cavity, and lung cancers. Both beta-carotene and vitamin E supplementation increase overall mortality. Carotenoids, vitamin A, vitamin C, vitamin E, and folate and risk of self-reported hearing loss in women. Prevents Cancer: Beta carotene helps fight cancer through its antioxidant capacity. Carotenoids are highly conjugated, easily oxidized molecules. The beneficial association supported by overwhelming observational epidemiologic data was abruptly challenged by the results of a few controlled trials of β-carotene supplementation. Some women eat more fruits and vegetables that contain beta-carotene to lower the risk of breast cancer. hypothesized that high dietary intake of carotenoids may reduce cancer among humans. Examples of dietary antioxidants include beta-carotene, lycopene, and vitamins A, C, and E (alpha-tocopherol). In women with breast cancer, diets high in vegetables and fruits that contain the full range of carotenoids (not just beta carotene alone) have been associated with reduced recurrence of breast cancer. J.Natl.Cancer Inst. Those people should not take beta-carotene, except under a doctor's supervision. Adult and Pediatric Dosages:. The deeper the color, the higher the beta-carotene content (x, x, x). Beta-carotene is an important part of a healthy diet and the best sources are from canned, frozen or fresh whole fruits and vegetables rather than from supplements (vitamin pills). The U.S. Preventive Services Task Force (USPSTF) recommends against beta-carotene or vitamin E supplements for the prevention of cardiovascular disease or cancer (33). Some dietary antioxidants are also available as dietary supplements (1, 3). Beta-carotene, along with alpha-carotene and beta-cryptoxanthin, can be converted to retinol and is classified as a provitamin A carotenoid. Many studies have demonstrated that a high consumption of vegetables and fruits with a high concentration of beta carotene has an inverse association with the risk of cancer [55–59]. On the basis of epidemiologic observations and laboratory studies, beta carotene and vitamin A have attracted wide interest as agents that may prevent lung cancer. Over-the-Counter Supplement Interventions to Prevent Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer-Type Dementia: A Systematic Review. Was this article helpful? People who are sensitive to the sun may take this product to protect them from sunlight. Oxford University Press (OUP); 2008 ; 101 : 14-23 10.1093/jnci/djn438 Users of this Web site should not rely on information provided on this Web site for their own health problems. While beta-carotene can be made synthetically, it can also be harvested naturally from carotene-rich plant material, such as the sea algae Dunaliella salina.Isolated with beta-carotene are the carotenoids alpha-carotene, zeaxanthin, cryptoxanthin, and lutein. 11 Supplementation with beta-carotene increases risk of lung cancer (RR 1.16 [1.06 to 1.27]) and stomach cancer (RR 1.34 [1.06 to 1.7]), while vitamin E increases prostate cancer (RR 1.17 [1.00 to 1.36]) and colorectal adenoma (RR 1.74 [1.09 to 1.79]). Beta-carotene has also been inversely correlated with metabolic syndrome (45). Supplemental Vitamins and Minerals for CVD Prevention and Treatment. Whether you or someone you love has cancer, knowing what to expect can help you cope. Vitamin A and Breast Cancer Survival: A Systematic Review and Meta-analysis. Additional data from a large-scale cohort study suggest that alcohol consumption, too, has a negative effect on the chemopreventive property of beta-carotene (9). Beta carotene also stimulates increased levels of T-helper lymphocytes, (NK) cell cytotoxicity (a natural form of cancer-killing cells), as well as macrophage action. Eating foods rich in beta-carotene, along with other antioxidants, including vitamins C and E, seems to protect against some kinds of cancer. High dietary intake of Beta Carotene may reduce the risk of cervical cancer. Lung cancer–associated mortality was also higher in the beta-Carotene group, though not significantly (P = .08).3, An 18-year follow-up analysis, however, found no significant difference in overall mortality or lung or prostate cancer–associated mortality between the beta-Carotene group compared with others.10, beta-Carotene and Retinol Efficacy Trial (CARET). The CARET study randomly assigned 18,314 smokers, former smokers, and asbestos-exposed participants aged 46 to 74 living in the United States to receive beta-Carotene (30 mg daily) plus retinol (25,000 IU daily) or placebo beginning in 1985.11 The asbestos cohort included subjects with occupational exposure starting at least 15 years prior to enrollment. The relative rate of mesothelioma (the most common single cause of death in our study) for those on retinol compared with those on beta-carotene was 0.24 (95% CI 0.07-0.86). Watercress is rich in protective and anti-cancer phytochemicals including beta-carotene, lutein and isothiocyanates. Beta-Carotene and Cancer Prevention Care has to be taken when attributing anti-cancer benefits to beta-carotene, as it is the precursor of vitamin A, which has been known to inhibit cancers since the 1940s. 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