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Eating Healthy to Prevent Cancer

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Proper nutrition and diet are important for many digestive diseases, including colorectal, esophageal, and liver cancers. To stave off digestive disease, nutritional guidelines suggest eating less fat and getting more nutrients from foods rather than from supplements.

Dietary Fat and Colon Cancer Risk

Dietary fat may be one of the biggest contributors to the cancer-causing process. High fat consumption increases the amount of bile acids in the colon. Bile acids can promote tumor growth, especially of the cells that line the colon.

Eating goals:

Decrease the total amount of fat you eat to 20%-35% or less of your total daily calories. For a person eating 2,000 calories a day, this would be about 44-77 grams of fat or less per day.

  • Limit cholesterol intake to 300 milligrams (mg) or less per day.
  • Decrease saturated fat (animal fat, butter, coconut, and palm oils) to less than 10% of your total calories per day. For a person eating 2,000 calories a day, this would be 22 grams of saturated fat or less per day.
  • Eliminate trans fats from your diet. Trans fats are in foods like margarine, packaged baked goods, fast food, some frozen prepared foods, chips, and crackers. The Food and Drug Administration (FDA) requires that the trans fat content of foods is now listed on the food label along with saturated fat and dietary cholesterol.

Antioxidants to Protect Your Body

Another important substance in the fight against colorectal and other cancers is the antioxidant. Antioxidants work by bolstering the body's defenses against potentially dangerous substances called free radicals.

Free radicals are one of the by-products of oxygen use by every cell in our body. These substances damage the body's cells through oxidation, the same process that rusts metal and turns butter rancid. Oxidation has also been shown to contribute to heart disease, cataracts, aging, and infections.

The body's cells have a natural defense strategy against free radicals and are often able to repair the damage caused by them. However antioxidants, such as selenium and beta-carotene (a form of vitamin A), help reinforce this protection. Studies have suggested that antioxidants are best taken as foods as opposed to supplements.

Eat foods that are good sources of vitamin A and C, such as all fruits and vegetables, and vitamin E which is found in foods including wheat germ, nuts, and seeds. Good sources of selenium include seafood, meat, and cereals.

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