Fructose intolerance only affects the digestive system when fructose (fruit sugar) is eaten, but it can lead to severe health problems when it is active. Fructose intolerance is caused by a defect in the gene that helps the body break down fructose. Without this breaking down process, the fructose stays in the gut, where it can cause problems. Fructose intolerance is diagnosed through a blood test and a hydrogen breath test. Treatment includes a low-fructose diet and medications to help the body absorb fructose. The most common symptoms of fructose intolerance include: D . Abdominal distension (swollen belly) Other symptoms can include poor growth due to lack of nutrients, anaemia due to low iron levels, and sluggishness. Fructose intolerance is inherited from a person’s parents in the genes they pass down to their children. This inherited condition affects how well the body breaks down fructose in most cases. If someone with this condition eats foods with a lot of fructose, it can cause vomiting, diarrhoea, and other problems. The main treatment for fructose intolerance is a low-fructose diet. It means that the person with this condition needs to avoid foods that have fructose in them. Some medications can help the body absorb fructose. Fructose intolerance is a rare disorder, but it can cause many problems if it is not treated. With a low-fructose diet and medications, most people with this condition can live healthy lives. Can you suddenly become fructose intolerant? No, you cannot suddenly become fructose intolerant. It is an inherited condition that people are born with. However, if you have this condition and do not treat it, you can have many problems. With a low-fructose diet and medications, most people with this condition can live healthy lives. There are a few things to be aware of if you have this condition: Conclusion Fructose intolerance is an inherited condition that causes problems when the body breaks down fructose sugar. With this condition, people can have severe diarrhoea, nausea, and other symptoms if they eat fructose foods. Treatment can include a low-fructose diet and medications to help the body absorb fructose. Most people with this condition live healthy lives when treated properly.