Individual nutrients have been extensively studied for their potential impact on cancer risk. For example, [vitamin D](#) has been linked to a reduced risk of colorectal cancer. A [meta-analysis](#) published in the journal found that higher levels of vitamin D were associated with a significantly lower risk of this type of cancer. Similarly, [omega-3 fatty acids](#), commonly found in fish and flaxseeds, have been shown to inhibit the growth of certain types of cancer cells.
