Pecans are a good source of vitamin E, B-complex vitamins and many beneficial minerals. Pecans can help boost your immune system, control your blood pressure and lower cholesterol.

Almonds are a popular snack item. They are also a delicious addition to baked goods such as breads and biscotti, stir fry dishes and as part of a granola mix. They are an excellent source of vitamin E, the B-complex vitamins and a good source of minerals such as calcium, iron, zinc, magnesium, potassium and selenium.

Betel nuts are small in size and are round to oblong in shape. The fleshy outer husk is coarse and matures from green to yellow-orange and may also contain patches of red. Within the husk, there are layers of fibrous pale yellow strands surrounding a hard light brown seed or nut, which is the dried endosperm. When the husk is green and immature, the nut and surrounding fibers are soft, but when the fruit matures, and the husk turns orange-yellow, the nut and fibers become hard, wood-like, and firm