Be as lean as possible without becoming underweight. Be physically active for at least 30 minutes every day. Limit sedentary habits. Avoid sugary drinks. Limit consumption of energy-dense foods. 1 cup of juice per day max. Eat more of a variety of vegetables, fruits, whole grains and legumes such as beans. Limit consumption of red meats (such as beef, pork and lamb) and avoid processed meats. If consumed at all, limit alcoholic drinks to 2 for men and 1 for women a day. Limit consumption of salty foods and foods processed with salt (sodium). Don't use supplements to protect against cancer. * It is best for mothers to breastfeed exclusively for up to 6 months and then add other liquids and foods. * After treatment, cancer survivors should follow the recommendations for cancer prevention. http://www.aicr.org/reduce-your-cancer-risk/recommendations-for-cancer-prevention/ here are the 10 healthiest foods: 1.Sweet Potatoes. A nutritional All-Star – one of the best vegetables you can eat. They’re loaded with carotenoids, and are a decent source of vitamin C, potassium, and fiber. Bake and then mix in some unsweetened applesauce or crushed pineapple for extra moisture and sweetness. 2 Mangoes. About a cup of mango supplies 100% of a day’s vitamin C, one-third of a day’s vitamin A, a decent dose of blood-pressure-lowering potassium, and 3 grams of fiber. Bonus: mango is one of the fruits least likely to have pesticide residues. 3Unsweetened Greek Yogurt. Non-fat, plain Greek yogurt has a pleasant tartness that’s a perfect foil for the natural sweetness of berries, bananas, or your favorite breakfast cereal. It’s strained, so even the fat-free versions are thick and creamy. And the lost liquid means that the yogurt that’s left has twice the protein of ordinary yogurt – about 18 grams in 6 ounces of plain Greek yogurt. 4 Broccoli. It has lots of vitamin C, carotenoids, vitamin K, and folic acid. Steam it just enough so that it’s still firm and add a sprinkle of red pepper flakes and a spritz of lemon juice. 5 Wild Salmon. The omega-3 fats in fatty fish like salmon may help reduce the risk of heart attacks and strokes. And wild-caught salmon has lower levels of PCB contaminants than farmed salmon. 6 Crispbreads. Whole-grain rye crackers, like Wasa, RyKrisp, Kavli, and Ryvita – usually called crispbreads – are loaded with fiber and often fat-free. Drizzle with a little honey and sprinkle with cinnamon to satisfy your sweet tooth. 7Garbanzo Beans. All beans are good beans. They’re rich in protein, fiber, iron, magnesium, potassium, and zinc. But garbanzos stand out because they’re so versatile. Just drain, rinse, and toss a handful on your green salad; include them in vegetable stews, curries, and soups; mix them with brown rice, whole wheat couscous, bulgur, or other whole grains. 8Watermelon. Watermelon is a heavyweight in the nutrient department. A standard serving (about 2 cups) has one-third of a day’s vitamins A and C, a nice shot of potassium, and a healthy dose of lycopene for only 85 fat-free, salt-free calories. And when they’re in season, watermelons are often locally grown, which means they may have a smaller carbon footprint than some other fruits. 9 Butternut Squash. Steam a sliced squash or buy peeled, diced butternut squash at the supermarket that’s ready to go into the oven, a stir-fry, or a soup. It’s an easy way to get lots of vitamins A and C and fiber. 10 Leafy Greens. Don’t miss out on powerhouse greens like kale, collards, spinach, turnip greens, mustard greens, and Swiss chard. These stand-out leafy greens are jam-packed with vitamins A, C, and K, folate, potassium, magnesium, calcium, iron, lutein, and fiber.