Sugar apple or custard apple has several minerals and vitamins like thiamine (B1), zinc, riboflavin (B2), potassium, niacin (B3), phosphorus, pantothenic acid (B5), manganese, calcium and Vitamin B6 among others that are essential for healthy functioning of the body. The potassium in the fruit helps regulate the blood pressure level. It is an excellent source of iron as well and prevents and treats anemia.
Believe it or not the rind of the fruit has been proven to be effective against toothache. Grind the rinds, mix with water and apply on the affected tooth to ease pain.