Last Updated on May 14, 2026 by Staff
Scientists think they may have found a way to help people keep weight off after dieting. The answer might be inside our tummies. A recent study in Nature Medicine found that a good bacteria called Akkermansia muciniphila helped people regain weight after a strict diet. Many people who lose weight end up gaining it back even if they eat healthy.
Some people might not know this but a lot of folks struggle with their weight. Modern life is full of processed food, low activity, stress and health problems which have made obesity a big issue worldwide. According to health experts over 40% of adults are overweight or obese. This number might rise to over half of the global population by 2035.
Obesity Crisis
Obesity is a huge problem. It does not just affect how we look. It also increases the risk of heart disease, diabetes, high blood pressure and some types of cancer. It causes financial problems for millions of people and healthcare systems around the world.
Although many people can lose weight by dieting, keeping that weight off is often very hard. Scientists call this challenge obesity memory, where our bodies try to get to their previous weight.
Body Fights Back
When we lose weight our bodies undergo several changes. Our metabolism slows down. We feel hungrier. These changes make it more likely for us to gain weight back.
Researchers became interested in Akkermansia muciniphila because it might help with metabolism and weight. This bacteria naturally lives in our gut. It is good for our digestive health.
They wanted to know if this good bacteria could also help humans keep weight off after dieting.
The Study
The research involved a 32-week study with adults who were overweight or obese. During the eight weeks 90 participants followed a strict low-calorie diet with meal-replacement soups and shakes. Their daily calorie intake was limited to around 800–900 calories.
Participants who lost at least 8% of their body weight moved into the second phase. A total of 84 people were then divided into two groups. One group received capsules containing 30 billion Akkermansia muciniphila bacteria every day while the second group received placebo capsules.
The scientists monitored body weight, blood sugar control and gut bacteria during the following 24 weeks.
Promising Results
The findings were impressive. People who received the Akkermansia muciniphila supplement regained less weight. On average they regained 1.2 kilograms while the placebo group regained about 3.2 kilograms.
Around 40% of the people taking Akkermansia muciniphila continued losing weight during the study period. In comparison 5% of the placebo group continued to lose weight.
The supplement also improved the body’s ability to process sugar and boosted insulin sensitivity.
Future Potential
The study highlights the importance of gut bacteria in human health and weight management. The Akkermansia muciniphila supplement did not produce side effects during the study making it a potentially safer option.
However researchers caution that more studies are still needed before the supplement can become part of standard obesity treatment.
Despite these limitations the findings provide hope for millions of people struggling to keep weight off after dieting. Akkermansia muciniphila could eventually become a tool in the fight against obesity.