An apple a day keeps the doctor away. Taking an apple every day is an effective way to restore health and rejuvenate the body. Apples are highly nutritious with great store of fiber and immune-boosting Vitamin C antioxidants. Apples are good for the heart, prevents Alzheimer's Disease and cancer, decreases the risk of diabetes, reduces bad cholesterol levels, and boosts the immune system. You can have apple with milk, have its juice or add it as an ingredient in your dessert.