Probiotics are live microorganisms that have health benefits when eaten. They are found in both supplements and fermented foods. Probiotics may improve digestive health, heart health and immune function, to name a few. Several studies also suggest that probiotics can help you lose weight and belly fat.
Gut Bacteria May Affect Body Weight Regulation
There are hundreds of different microorganisms in your digestive system.
The majority of these are bacteria, most of which are friendly. Friendly bacteria produce several important nutrients, including vitamin K and certain B-vitamins.
Both human and animal studies have found that normal-weight people have different gut bacteria than overweight or obese people.
In those studies, people with obesity had more firmicutes and fewer bacteroidetes, compared to normal-weight people.
There are also some animal studies showing that when the gut bacteria from obese mice are transplanted into guts of lean mice, the lean mice get fat.
All of these studies suggest that gut bacteria may play a powerful role in weight regulation.