Fruits have been utilized in healing diseases for long time.The following are some of the fruits which are used to treat diseases.
Apple
Apple is one of the healthiest fruits available.apples are cholesterol free, almost fat free and, rich in protein and vitamins.Apple are rich in soluble fiber, called pectin, which helps to remove the cholesterol from the body in turn helps to free from blood pressure.
Apricot
Apricots are called as super healing fruit.Apricots are rich in beta-carotene and can help to protect against cancer. Apricots contain iron, cobalt and copper, which may help the body counteract anemia, and potassium, which helps to regulate blood pressure.
Berries
Berries such as Blueberries. Blackberries. Strawberries and Raspberries are great summer snack.This fruit is rich in fiber and sugar called fructose which can give you lasting energy because the fiber helps to release the fructose slowly into the blood stream. A cup of any of these berries have less than 100 calories, no cholesterol and all rich in potassium and are packed with vitamins.
Citrus
Lemons, Oranges, Grapefruits are excellent sources for calcium, phosphorus and potassium, as well as the fiber, pectin. It fight against the cancer-causing chemicals called nitrosamines, pumps up the immune system, and helps to prevent from cardio-vascular disease.
Figs
Figs contain vitamin A and C, calcium, potassium and magnesium and thus helps in the reduction of appetite. This fruit contain a chemical, called benzaldehyde, which helps to fight against cancer.
Melons
These are rich in fiber content and full of beta-carotene. This boosts the immune system and helps to prevent cancer. Beta-carotene once entered in the body it immediately converts in to vitamin A.
Papaya
papaya is rich in 
nutrients.This fruit contains the enzyme papain, which is a powerful digestive aid. Papain is responsible for breaking down fats and flushing them through the kidneys. Papaya contains vitamins of which are antioxidants that help neutralize free radicals in the body. Free radicals helps to reduce heart disease, cancer and diabetes .
Pineapple
pineapple also rich in nutrients .This contains an enzyme bromelain which is a digestive aid that assist in flushing out the toxins from the body.