The invention relates to methods for promoting SCFA production by gut microbiota by administering a liquid, water-based probiotic composition. The methods are particularly effective at promoting gut health. The invention further relates to methods of promoting intestinal barrier integrity, methods of promoting a tolerogenic gut phenotype, and methods of treating Parkinson's Disease.

The invention relates to methods for promoting SCFA production by gut microbiota by administering a liquid, water-based probiotic composition. The methods are particularly effective at promoting gut health. The invention further relates to methods of promoting intestinal barrier integrity, methods of promoting a tolerogenic gut phenotype, and methods of treating Parkinson's Disease.