18 Foods Research Links to Increased Cancer Risk

A lot of research has explored the possible link between cancer risk and certain foods. While some food components and chemicals have been shown to increase cancer risk in lab settings, these findings are difficult to reproduce in human populations.

According to the National Cancer Institute, comparing the diets of people with and without cancer can highlight differences, but these studies show association, not causation. Many other factors may contribute to a person’s risk of developing cancer.

Still, some foods and additives have been associated with increased cancer risk. While avoiding them doesn’t guarantee protection, awareness is an important step. Talk to your doctor about your personal risk and how to make informed choices about your diet.

1. Ultra-Processed Foods

Ultra-processed foods contain multiple added ingredients, such as stabilizers, preservatives, artificial colors and flavors, or bulking and gelling agents. Examples include sugary cereals, soft drinks, baking mixes, frozen dinners, packaged bread, and processed spreads.

Studies show that these foods can contribute to a range of health problems — including cancer. One analysis found that a diet high in ultra-processed foods may raise the risk of several types of cancer, including pancreatic, colorectal, and breast cancers.