![the feet of a group of runners](https://nutritionfacts.org/app/uploads/2013/11/Preserving-Immune-Function-in-Athletes-with-Nutritional-Yeast-1200x675.jpg)
Preserving Immune Function in Athletes with Nutritional Yeast
Athletes who overtrain may put excessive stress on their bodies, and become more susceptible to respiratory infections. But, the fiber found in nutritional and brewer's yeast may prevent this immune decline in marathon runners.