Mannose and Weight: How are They Linked?


Whenever anyone talks about preventing weight gain, one of the most common pieces of advice is to cut down sugar. However, recently, studies have started to establish a link between Mannose and weight that shows that the not all sugar is bad for the body. Mannose is a type of sugar, like glucose and fructose. It occurs naturally and is found in many fruits. In this article, we will explore the Mannose and weight link, and understand how and why this sugar can be beneficial for preventing weight gain.

Mannose and Weight

According to research published in Cell Reports, Mannose impacts the body positively in many ways. It improves overall metabolism, and also improves the health of gut microbiome or gut bacteria. As a result, it is found to prevent obesity that occurs as a result of the diet.

How does Gut Bacteria Help Cut Down on Obesity and Weight Gain?

Good gut bacteria has multiple effects on the body. One of the most significant ones in light of this research is that this bacteria can regulate the way patients gain weight. Genetic factors determine the nature of the gut bacteria in the patients, which in turn leads to their ability to control weight. Gut microbiome is especially helpful when controlling belly fat, which is the most dangerous type of fat that can accumulate in the liver.

Mannose works as an effective prebiotic. A prebiotic is a substance that stimulates the growth of good gut bacteria, while a probiotic is a substances that feeds them and helps them grow. Mannose not only helps good gut bacteria grow, but also eliminates certain types of harmful bacteria, such as the ones that cause UTI. According to the results seen in animal studies, rats that were fed high fat diets along with doses of Mannose did not gain weight. When scientists looked into this matter further, they noticed that the gut bacteria in these rats resembled the type of gut bacteria generally seen in leaner rats. Thus, by stimulating the growth of microbiome, Mannose helps prevent weight gain that occurs from diet related factors.

Also Read:  Can Good Gut Bacteria Affect Your Physical and Mental Health?

What Foods Contain Mannose in Them?

Mannose is generally found in fruits. It occurs naturally in a range of fruits like apples, peaches, oranges, and even some berries like cranberries and blueberries. Patients who suffer from carbohydrate deficient glycoprotein syndrome are given Mannose in the form of supplements.

Are There Any Risks or Side Effects of Consuming Mannose?

Most patients respond well to Mannose, however, too much of a good thing can also be slightly harmful. Breastfeeding mothers and pregnant women should be cautious while consuming this sugar. This is mainly because the effects of Mannose are still being studied and no one knows if it can cause harm to the child or the mother.

Some of the side effects of consuming high amounts of Mannose include:

  • Diarrhoea
  • Bloating
  • Kidney damage

Patients who suffer from diabetes should be extremely careful while consuming Mannose. This is because it is, after all, a sugar and it can make it much harder for patients to control their glycaemic index and manage their diabetes well.

What Can You do to Control Your Weight?

The effects of Mannose are mostly unknown as scientists are still studying this sugar. So, if you want to wait until more conclusive tests and results are out, that is more than okay. Exercising caution about your health is always a great way to go about taking care of yourself. However, in the meantime, you can still take a few measures to prevent weight gain. Some of these include:

  • Exercise regularly in order to burn off excess calories and fat. You can indulge in something as simple as walking or jogging in order to do so. Swimming, riding a bicycle, and going to the gym can also help you achieve the same.
  • Cut fats from your diet. A low fat diet may help you lose weight. However, if you suffer from diabetes, then this diet is not for you, as many low-fat foods contain added sugars. In this case, you must consume a high fat, low carbs diet that can help you lose weight.
  • Control your stress. Many people seek comfort food when stressed or depressed. If you find yourself reaching for a snack every time you are in a bad mood, then this is something you need to control.
  • Include high fibre foods in your diet. These can regulate your bowel movements and prevent high amounts of fat from being absorbed by the body.


According to many studies, Mannose and weight seem to be linked. However, it is important to note that researchers are yet to understand the mannose and weight link in humans. These studies have predominantly been conducted on rats, and though such studies are generally good indicators of how humans respond to the same stimulus, it is always better to wait for the official word on the same!

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