In the study of 24 patients with metabolic dysfunction-associated steatohepatitis (MASH), a common liver disease caused by excessive fat buildup, one group followed a restricted diet and a high intensity interval training exercise program for 10 months. They dramatically improved their liver health over the control group of patients who received standard of care treatment.
Diet and exercise are the first lines of treatment for liver disease; however, this study is the first to examine the impact of diet and exercise on liver health and confirm the organ’s recovery through imaging and diagnostic biopsies. These techniques allow for measurements of liver inflammation, fat buildup, fibrosis development, and other indicators of liver health.
“Other studies investigated the impact of either diet or exercise on the liver, not both,” says study author Elizabeth Parks, professor of nutrition and exercise physiology at the University of Missouri School of Medicine.
“In addition, similar studies were just observational, but[…] we have technology for metabolic imaging that can give in-depth data on liver disease.”
Nutritionists determined the best food intake for each participant and tracked their caloric and nutrient intake, and pathologists examined blood biochemistries with each blood sample taken.
The patients treated lost about 13-22 pounds and had increased muscle mass, while the control group lost 0-9 pounds. The peak oxygen uptake, considered an indicator of cardiovascular health and the ability to exercise, was much higher on average for the treatment group compared to the control. Insulin sensitivity, which measures how effectively cells convert glucose to energy, also increased for treated patients.
Obesity is one of the most prominent risk factors in developing MASH, and other conditions like high blood pressure and type 2 diabetes can contribute. Lifestyle interventions can be used to treat these conditions and reverse liver damage. It may even protect against future development of MASH.
“Obesity and diabetes are going up in the country, and they are the two main risk factors for fatty liver disease,” Parks says.
“We know diet and exercise can alleviate these health conditions. Liver disease is increasing too fast. We were able to show in our research how diet and exercise should be the mainstay of treatment for the disease.”
Though more research is needed to validate and explore these findings, this breakthrough offers some hope.
“Our findings suggest liver disease doesn’t have to be a chronic, progressive condition,” Parks says.
The research appears in the Journal of Hepatology.
Source: University of Missouri
Original Study DOI: 10.1016/j.jhep.2024.06.017
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Previously Published on futurity.org with Creative Commons License
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