Question

how the yeast usefull to us​

Answer 1

Answer:

yeast is useful for fermentation

Answer 2

Answer:

Yeast keeps your digestive system healthy and in balance.

Explanation:

The right amount in your body helps your immune system do its job. Yeast is part of a healthy mix of bacteria in your gut. It can help you absorb vitamins and minerals from your food, and even fight disease.