Study the Effect of Water Kefir Consumption on the Gut Microbiome in Healthy Adults

The goal of this intervention study is to analyse the microbiota composition after the water kefir consumption. The main questions are to evaluate the potential probiotic drink can have beneficial effect on the gut microbiota. Participants will consume the water kefir for two weeks and microbiota will be analysed. Researchers will compare the microbiota composition before and after consumption.

Inclusion Criteria:18-65 years of age.must be able to complete the form digitally.Exclusion Criteria:must not be diagnosed with gastrointestinal diseases, autoimmune diseases or have diseases or medications that cause immune deficiency such as MS, type 1 diabetes, cancer or HIV.must not take antibiotics during the study period.