Almonds
Almonds are nuts that contain high levels of Vitamin E which is almost as effective as Vitamin C when battling colds and flus. As a fat-soluble vitamin [6], Vitamin E requires fat to be absorbed by the body easily. This makes the healthy fat content of almonds useful as they allow your body to properly absorb the Vitamins present in the almonds. Almonds will boost your immune system and a handful of almonds is sufficient to reach your daily requirements for Vitamin E. It is a nice addition to your diet and would help improve your immune system.