Fennel seeds:
Fennel seeds help in improving the functionality of the immune system because they are extremely rich in vitamin C. the vitamin C present in fennel seeds is a potent antioxidant and also imparts antimicrobial properties in the body. The intake of fennel seeds automatically enhances the immune system and involves in the tissue repairing mechanisms too. Moreover, there is a good quantity of vitamin A and beta carotene present in fennel seeds, which promote a healthy immune system. Fennel seeds also balance the hormones in the body and thus strengthening the immune system naturally.