Fresh fruits such as pears, peaches and pineapples provide good sources of several essential nutrients, including dietary fiber, vitamin C and potassium. Women that are 19 to 30 years of age and men that are 19 years old and up should eat about 2 cups of fruit per day. Women that are 31 and over should consume 1 ½ cups per day, according to the USDA.
Calories and Fat
Like most fruits, peaches, pears and pineapples are naturally low in calories and fat. One medium peach contains 60 calories, and one serving of pineapple, or two 3-inch slices, contains 50 calories. Pears contain more calories than peaches and pineapples, with 100 calories per medium pear. None of these fruits contain a significant amount of fat.
Carbohydrates
Pears have a higher total carbohydrate content than peaches and pineapples, and they provide significantly more dietary fiber. One medium pear contains 26 grams of carbohydrates, including 6 grams of dietary fiber and 16 grams of sugar. One medium peach contains 15 grams of carbohydrates, including 2 grams of dietary fiber and 13 grams of sugar. One serving of pineapple contains 13 grams of carbohydrates, including 1 gram of dietary fiber and 10 grams of sugar. Dietary fiber plays an important role in digestive health and helps to provide a lasting feeling of fullness. The Harvard School of Public Health recommends that adults get at least 20 to 30 grams of fiber per day.
Vitamins
Peaches, pears and pineapples all provide some vitamin C, but pineapples have significantly more than peaches and pears. One serving of pineapple provides 50 percent of the recommended daily vitamin C intake, while one medium peach has only 15 percent. One medium pear provides only 10 percent. A serving of pineapple offers 2 percent of your recommended daily vitamin A intake, and one peach provides 6 percent of the daily value for this vitamin. Pears do not contain a significant amount of vitamin A.
Minerals
Peaches contain more potassium than pears and pineapples, with 230 mg per serving. One medium pear provides 190 mg of potassium, and one serving of pineapple has 120 mg. A pear or pineapple serving provides 2 percent of the recommended daily amount of calcium. Peaches do not contain a significant amount of calcium. One peach or pineapple serving contains 2 percent of the recommended daily intake of iron. Pears do not contain a significant amount of iron.
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