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Probiotics could help treat metabolic disease patients

Obesity, diabetes and non-alcoholic fatty liver disease (NAFLD, which is excessive fat accumulation in the liver) are a growing global health problem. Researchers believe that lifestyle, especially a poor diet, contributes to the rapid progression of these diseases. Studies show that patients with metabolic diseases such as type 2 diabetes, obesity and NAFLD also have dysbiosis, which is an imbalanced gut microbiota. Dysbiosis is characterized by decreased levels of beneficial bacteria.  Metformin, a common drug given to type 2 diabetes patients to regulate blood sugar levels, modulates the gut microbiota in a way that leads to improved blood glucose levels.

A recent literature review of 105 studies performed on overweight but not obese patients revealed that probiotics improve weight loss. Specifically, consuming a probiotic that contained three or more strains during eight weeks improved markers of metabolic health such as a slight decrease in weight loss, body fat mass and waist circumference in overweight individuals.

In individuals with type 2 diabetes, regular probiotic consumption improved blood sugar levels and resulted in decreased body weight and inflammation that are often seen in patients with metabolic disease. Interestingly, probiotics did not improve insulin resistance in patients with fatty liver disease but did ameliorate other markers of metabolic health such as reduced body weight, waist circumference and liver enzyme production.

The authors conclude that different strains of probiotics may work synergistically to cause diverse effects on host metabolism such as fat absorption, sugar digestion, inflammation as well as the production of the beneficial metabolites short chain fatty acids.