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| | The most complete growth and nutrition guide is here for all your herbs, vitamins, and minerals. (Site not responding. Last check: 2007-10-31) |
 | | Beta-carotene proved ineffective for preventing cataracts in one large study, 15 and in another large study, beta carotene supplements combined with vitamin E and C failed to prevent either macular degeneration or cataracts.75 |
 | | According to a 2-year, double-blind, placebo-controlled study of 141 women with mild cervical dysplasia (a pre-cancerous condition), beta-carotene, taken at a dosage of 30 mg daily along with 500 mg of vitamin C, does not help to reverse the dysplasia.38 Negative results were seen in other trials of beta-carotene as well.72,73,74 |
 | | However, long-term use of beta-carotene supplements, especially at doses considerably above the amount necessary to supply adequate vitamin A, might slightly increase the risk of heart disease and certain forms of cancer.67—71 The solution: eat plenty of fresh fruits and vegetables, and get your beta-carotene that way. |
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