Polyphenols, one of the many categories of natural substances, help promote and strengthen one’s immunity. They are used to:

1. Regulate intestinal mucosal immune responses

2. Regulate allergic diseases

3. Regulate antitumor immunity

4. Induce epigenetic changes in cells

5. Packed with antioxidants

Plant-based foods are rich in polyphenols, such as vegetables and fruits.