Polyphenols
Polyphenols are plant compounds in Red Wine, Green Tea, Dark Chocolate, and Olive Oil that help stimulate healthy bacteria growth.
Fermented Foods
The fermentation process “pre-digests” foods, making it easier to absorb the nutrients and taking some strain off of weak gut flora. Fantastic fermented foods for your body include:
Kefir (if you’re not allergic to dairy)
Yogurt (also if you’re not allergic to dairy)
Sauerkraut
Kimchi
Kombucha
These foods are also a fantastic source of probiotics — live microorganisms that can be introduced into our gut (through food or live bacteria supplements) to help replenish depleted colonies of "good" bacteria.