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PHYTONUTRIENTS - PHYTONUTRIENTS Phyto-plant Chemicals in...

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PHYTONUTRIENTS Phyto-plant Chemicals in plant foods that affect our health and risk of developing diseases A nutrient, a specific chemical Essential Not like other nutrients Begins with study of plant foods and cancer Fruits & Vegetables reduce cancer risk A protective effect against cancer in 128 of 156 studies Lung, esophagus, colon, bladder, cervix, ovary, endometrium, breast, pancreas, stomach, and prostate cancers Estimate Those who eat the most F & V have ½ the risk of those who eat the least Protective effect is bigger Healthy diet is second to not smoking o Two biggest cancer preventions Sources Lettuce, dark leafy greens, onions, carrots, citrus, broccoli, potatoes, cabbage family, cauliflower Whole grains Why They Are Protective History Originally thought nutrients were the protectors Like vitamin A- F&V good sources of Vitamin A Retinol (form of vitamin A) role in cell differentiation Cancer cells are undifferentiated Vitamin A is protective in cell culture studies o Inhibits their growth o Deficiency of Vitamin A enhances cancer risks in animals o
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