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Professional Institute for Fitness and Nutrition Worldwide.
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Common sources of naturally occurring carbohydrates include:
Fruits
Vegetables
Milk
Nuts
Grains
Seeds
Legumes
Types of carbohydrates
There are three main types of carbohydrates:
Sugar. Sugar is the simplest form of carbohydrate and occurs naturally in some foods, including fruits, vegetables, milk and milk products. Types of sugar include fruit sugar (fructose), table sugar (sucrose) and milk sugar (lactose).
Starch. Starch is a complex carbohydrate, meaning it is made of many sugar units bonded together. Starch occurs naturally in vegetables, grains, and cooked dry beans and peas.
Fiber. Fiber also is a complex carbohydrate. It occurs naturally in fruits, vegetables, whole grains, and cooked dry beans and peas.
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Most health and nutrition experts agree that Americans should increase their consumption of fish. Fish are high in protein and are low in calories, cholesterol and saturated fat.
Some varieties also are excellent sources of omega-3 fatty acids, which have been found to decrease the risk of heart disease and stroke. Omega-3 fatty acids can promote fetal brain development during pregnancy. These benefits come from fatty fish such as salmon, lake trout, herring, sardines and albacore tuna.
Because of these health benefits, the upcoming Dietary Guidelines for Americans 2015 recommend that adults eat 8 ounces of fish a week. Americans currently eat only half that amount.
It used to be that wild-caught fish were considered healthy. Over the past several decades, however, concerns have arisen about the effects heavy metal contaminants (such as mercury), pollutants (such as polychlorinated biphenyls, PCBs), pesticides, fertilizers and even trash have on the safety of water and fish. The demand for certain types of fish and some fishing practices, such as bottom trolling, have taken their toll on the environment and the availability of fish.
