Knowledge Center
Liver Transplant Programme
| 23 June 2025
It is hard to escape sugar - it's present in packaged foods, sweets, soda, and even in unexpected places like pasta sauce. The typical Indian diet contains an excessive amount of sugar, prompting the federal government to update dietary guidelines last year. The new recommendation suggests limiting sugar intake to no more than 10 percent of daily calories. A recent research revealed that individuals consuming 25 percent of their daily calories from sugar have twice the risk of dying from heart disease compared to those with just 7 percent of their daily calories from sugar.
Excessive consumption of sugar can cause fatty liver disease through several mechanisms:
There are different types of sugar, and one of them is called fructose. Fructose is mainly processed in the liver, while another type of sugar called glucose is used by different parts of the body. This difference is really important for understanding how sugar impacts liver health.
When we consume sugar, it is metabolized in the liver and converted into stored fat. This process occurs as the sugar is broken down into glucose, which the body then utilizes for energy. The excess glucose that is not immediately needed for energy is transformed into fat in the liver cells. This accumulation of fat in the liver is one of the primary drivers of fatty liver disease.
Numerous studies have investigated the relationship between sugar intake and NAFLD. The stored fat resulting from the metabolism of sugar in the liver is not the healthy type of fat. This condition, known as Non-Alcoholic Fatty Liver Disease (NAFLD), is characterized by an excessive buildup of fat in the liver. NAFLD is one of the most common liver disorders globally, and high sugar intake can exacerbate this condition.
Insulin resistance can also be linked to sugar consumption. Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels. However, when there are continuous spikes in blood sugar levels, the body's cells may develop resistance to insulin, leading to elevated blood sugar levels. This condition can contribute to the development of fatty liver disease.
Excessive sugar intake can negatively affect the balance of gut microbiota. When the beneficial bacteria in the gut are disrupted, harmful bacterial metabolites can be produced, potentially damaging the liver.
Sugar and fatty liver disease are closely linked. The continuous consumption of high amounts of sugar can place a significant burden on the liver. As the liver tries to metabolize the excess sugar, it can become overwhelmed, affecting its ability to function optimally. This can lead to the accumulation of fat in the liver cells, further contributing to the development of fatty liver disease.
Oxidative stress occurs when our bodies have too many toxins because of things like alcohol and smoking. This can make our sugar levels too high and cause a lot of fat to build up in our liver, which can lead to liver disease. When our livers are affected by alcohol and smoking, it can cause inflammation and more stress on our bodies, making it harder for our livers to work properly. This happens because of problems with how our bodies break down substances and because there are too many toxins in our livers.
It is crucial to control sugar intake for liver health, especially for individuals with conditions like diabetes or those at risk of developing it. Making healthy lifestyle changes can help manage sugar intake and liver health effectively. Here are some tips:
By understanding and implementing these lifestyle changes, individuals can take proactive steps to effectively control and improve their sugar intake and liver health.
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