Vitamin A, a fat-soluble vitamin found in various food sources, is known for its essential role in maintaining healthy vision, immune function, and cellular growth and differentiation. However, its potential benefits in preventing or assisting with Lung cancer remain uncertain based on current medical research. While some studies have suggested a potential association between high dietary intake of Vitamin A and a reduced risk of Lung cancer the evidence is not definitive and additional research is needed to establish a clear link.
One study conducted in 2012 found that higher dietary intake of Vitamin A, specifically in the form of carotenoids found in fruits and vegetables, was associated with a reduced risk of Lung cancer in non-smokers. Carotenoids, which include beta-carotene, lycopene, and lutein, are converted into Vitamin A in the body. These findings suggested that maintaining a diet rich in carotenoid-containing foods may have a protective effect against Lung cancer development in certain individuals.
Conversely, other research has not consistently supported the notion that Vitamin A supplementation or high dietary intake can prevent or alleviate Lung cancer In fact, certain studies have even suggested a potential harmful impact of excessive Vitamin A intake, particularly in the form of supplements. An large-scale study called the CARET (Beta-Carotene and Retinol Efficacy Trial) found that high-dose beta-carotene and retinol supplementation increased the incidence of Lung cancer and mortality in high-risk individuals, namely heavy smokers and asbestos-exposed workers.
