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Anything with fiber is great - dark green veggies, whole wheat grains (check labels, if the 1st ingredient doesn't say Whole Wheat flour/etc, then don't buy it), ground flaxseed on cereal/yogurt and those FiberOne snack bars. Add to that the water fruits: applesauce, pineapple, honeydew, cantelope, watermelon, grapes, oranges, etc to counteract the possible constipation issue when you first start loading up on fiber. Next, choose lean proteins whenever you can: chicken breasts, non-polluted fish (try grilled halibut - and double check what's safe on the internet), beans are always good to try in soups and such (not refried, but the kind you soak before cooking: white/navy/etc). Avoid ground beef when you can and choose lean steaks to cook (grill or stir-fry when you can ). Stay away from cream anything (white sauces, white gravy, cream soups, thick salad dressings like 1000/ranch/bleu cheese - choose lite versions and keep it to a small spoonful or go with the oil & vinegar versions). Pastas and sauces are usually out, unless you go with the wheat or veggie pasta with red sauces. Avoid alcohol, soda pop and most juices - stay on water, low or nofat milk, and fortified (not from concentrate) orange juice, V8 (not the fruit blends, just the veggie low sodium type) and veggie juices like carrot (check to see if they're pasteurized and remember it's always better to eat veggies and fruit then drink them).