Drinking water was hazardous because it frequently contained bacteria that carry diseases.
Making the water into beer made it safe to drink, as any deadly bacteria previously present in the water were killed during the brewing process.
Researchers from Stanford journal University in the Cell suggests that there are healthy benefits to eating fermented foods.
They may help the balance of helpful bacteria that live in your intestines to reinforce our immune system and help you digest food.
According to a review article in the Journal of the American College of Cardiology, common fermented like kimchi, sauerkraut, kefir, tempeh, kombucha, and yogurt have been reported to reduce heart disease risk and aid digestion, immunity, and weight loss.
Making these foods part of your diet may be an easy way to better your heart and metabolic health without changing your diet completely.
But for a double dose of good health, add fermented foods to the Mediterranean or other plant-based diet.