Kefir
Kefir is a fermented milk drink with a thick consistency. [14] Traditionally, it is prepared by combining fresh milk with a yogurt-based starter culture. It is these living cultures that provide health benefits. Kefir contains beneficial bacteria known collectively as probiotics, a kind of microorganisms and microbial substances that help fight heartburn.
Another benefit of kefir is that kefir cultures are made up of lactic acid bacteria and yeast, which are friendly microorganisms that help stop the growth of harmful bacteria in the stomach. Kefir contains several major probiotic strains, including lactobacillus and streptococcus.
The presence of lactobacilli, in turn, has a positive effect on the relief of unpleasant symptoms caused by heartburn.