Apple

Apples are high in fiber, and eaten between meals help suppress the appetite. The insoluble fiber in apples helps reduce constipation, while pectin reduces cholesterol. They are also a good source of vitamin C and of the mineral boron, which helps to curb calcium losses that may lead to osteoporosis.
Apples contain some anti-cancer agents, and have some antibacterial, antiviral, and anti-inflammatory activity