Apples are absolutely fat-free. You've heard, An apple a day will keep the doctor away. While it will certainly take more than a daily apple to keep you healthy, it is a step in the right direction. Apples are delicious, easy to carry for snacking, low in calories, a natural mouth freshener, and they are still very inexpensive. Apples are a source of both soluble and insoluble fiber. Soluble fiber such as pectin actually helps to prevent cholesterol buildup in the lining of blood vessel walls, thus reducing the incident of atherosclerosis and heart disease. The insoluble fiber in apples provides bulk in the intestinal tract, holding water to cleanse and move food quickly through the digestive system.

People who eat lots of apples may have lower rates of lung cancer, judging by a study done in Finland. Those who eat the most flavonoid-rich foods — apples and other fruit, onions, juices, vegetables, and jams — had a 20 percent lower incidence of cancer. Apples are not bursting with vitamins and minerals like other fruits, though they do provide a bit of vitamin C and potassium. However, without a doubt apples are amazing for controlling blood sugar.