A study has found that there are several foods people should avoid eating because they impact a person's ability to fight off illnesses.

The study, published in the British Society of Gastroenterology Journal, found that ultra-processed foods could impact the body's ability to fight off cancer cells in the colon.

It also showed people could face potential problems when they consume an overabundance of certain omega-6 fatty acids that are in processed foods.

Researchers say those acids may also hinder the anti-inflammatory and tumor-fighting properties of omega-3, an essential fatty acid.

Doctors say people can increase their omega-3 intake by eating salmon and other fatty fish and cut back on processed foods, red meat and sugary foods and drinks.

They say also beans are now considered the top source of protein and fiber.

Beans are not only good for your heart but help fight off inflammation in the body and are high in antioxidants, doctors say.

The 2025 U.S. Dietary Advisory Committee has changed their recommended serving of legumes to two-and-half cups of beans, peas and lentils a day – an increase from one-and-half cups.