Ads
related to: beta carotene and lung cancer risk
Search results
Results From The WOW.Com Content Network
A meta-analysis concluded that supplementation with β-carotene does not appear to decrease the risk of cancer overall, nor specific cancers including: pancreatic, colorectal, prostate, breast, melanoma, or skin cancer generally. [8] [40] High levels of β-carotene may increase the risk of lung cancer in current and former smokers.
Lung cancer risk has been associated with an excess of Beta carotene (found in many yellow, orange and green vegetables) and smokers are advised to avoid supplements that include it.
The New England Journal of Medicine published an article [12] in 1994 about a trial which examined the relationship between daily supplementation of β-carotene and vitamin E (α-tocopherol) and the incidence of lung cancer. The study was done using supplements and researchers were aware of the epidemiological correlation between carotenoid ...
Long-term use of beta-carotene, vitamin A, and vitamin E supplements may shorten life, [2] and increase the risk of lung cancer in people who smoke (especially those smoking more than 20 cigarettes per day), former smokers, people exposed to asbestos, and those who use alcohol. [21]
Supplementation with vitamin A or beta-carotene had no effect on lung cancer, and instead slightly increased mortality. [90] Dietary supplementation with vitamin E or retinoids similarly had no effect. [91] Consumption of polyunsaturated fats, tea, alcoholic beverages, and coffee are all associated with reduced risk of developing lung cancer. [90]
In contrast, an inverse association was reported between retinol intake and relative risk of esophageal cancer, [113] gastric cancer, [114] ovarian cancer, [115] pancreatic cancer, [116] lung cancer, [117] melanoma, [118] and cervical cancer. [119] For lung cancer, an inverse association was also seen for β-carotene intake, separate from the ...