Custard apple contains riboflavin and vitamin C, which helps to combat free radical destruction. This helps in maintaining good eyesight. The wellbalanced ratio of sodium and potassium in custard apple regulates and controls blood pressure fluctuations in the body. The high levels of magnesium in custard apple unwinds the smooth muscles of the heart and calms the jerks and cramps, thus preventing heart attack and stroke. Niacin and fiber in custard apple lowers bad cholesterol and increases good cholesterol in the body. It also prevents the absorption of cholesterol in the gut.