Table 1.

Dietary and lifestyle factors that influence CRC risk.

Strength of Evidence	Increased CRC Risk	Decreased CRC Risk
Probable or Convincing	Red meat Processed meat Alcoholic drinks Obesity	Physical activity Dietary fiber Garlic Milk Calcium
Suggestive	Foods containing iron Cheese Foods containining animal fats Foods containing sugars	Nonstarchy vegetables Fruits Fish Foods containing folate Foods containing selenium Foods containing vitamin D Selenium
Inconclusive	Cereals (grains) and their products; potatoes; poultry; shellfish and other seafood; other dairy products; total fat; fatty acid composition; cholesterol; sugar (sucrose); coffee; tea; caffeine; total carbohydrate; starch; vitamin A; retinol; vitamin C; vitamin E; multivitamins; non-dairy sources of calcium; methionine; beta-carotene; alpha-carotene; lycopene; meal frequency; energy intake

Adapted from American Institute of Cancer (AICR) 2^nd Annual Expert Report (5)