2. Yogurt
Yogurt contains some bacteria which are essential to the body. The bacteria improve the digestion process. Therefore, essential nutrients are broken down and assimilated by the body. Also, it helps improve the immune system. Yogurt contains a set of beneficial bacteria which improve the body functions. It contains zinc which controls inflammation as well.
3. Highly colored foods and vegetables
Highly colored foods such as carrots, pumpkins, sweet potatoes and squash have high compounds called carotenoids. Carotenoids once taken up by the body are then converted into vitamin A, which has a strong antioxidant effect that helps boost the immune system against infections. The vitamin is also useful in maintain the mucosal surfaces and preventing infections. The foods also contain several other components which play a vital role in boosting immunity.