The role played by lactic acid bacteria (LAB) in our stomach is

(a) beneficial

(b) harmful

(c) neutral

Lactic acid bacteria (LAB) play a beneficial role in our stomach. These bacteria help maintain a balanced and healthy gut microbiome. They are involved in the fermentation of carbohydrates in the digestive tract, producing lactic acid as a byproduct. The production of lactic acid creates an acidic environment in the stomach, which helps to inhibit the growth of harmful bacteria.

Additionally, LAB aid in the digestion and absorption of nutrients, support the immune system, and contribute to the synthesis of certain vitamins and other bioactive compounds. They also help prevent the overgrowth of pathogenic bacteria and promote gut health, contributing to overall digestive well-being.