The mealtime trick that boosts immunity by 300%
Thoroughly chewing food can also protect against illness, report researchers from the National Institutes of Health. In an animal study, mice given chewier food produced three times more Th17 cells (immune cells that protect against bacterial and fungal infections) than mice fed soft food. According to the researchers, chewing creates small abrasions in the mouth that activate the immune system. To get the benefits, experts suggest chewing around 30 times per bite on denser foods and 10 times on softer foods.