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Exercise in the Morning Can Help Burn Body Fat: New Study Suggests Time Matters When It Comes to NAFLD Treatment

Exercising in the morning appears to be more beneficial than in the evening when it comes to burning body fat, according to a new study by researchers at Karolinska Institutet in Sweden and the University of Copenhagen in Denmark.[0] To determine how the time of day affects the burning of fat, they studied the body fat of mice after a session of high-intensity exercise on a treadmill.[0]

Researchers from Penn State College of Medicine have verified that exercise can significantly decrease liver fat in individuals with nonalcoholic fatty liver disease. The College of Medicine found that brisk walking for 150 minutes per week led to significant decreases in liver fat, which was previously not known to be the required amount of exercise for a clinically meaningful effect. This amount of exercise is in line with the U.S. Department of Health and Human Services’ recommendation of at least 150 minutes of moderate aerobic activity such as cycling or brisk walking every week, and a mix of moderate and vigorous aerobic activity every week.[1]

A meta-analysis of 14 prior studies conducted by the team has confirmed that exercise produces clinically significant decreases in liver fat for patients with nonalcoholic fatty liver disease. They found that, independent of weight loss, exercise is 3.5 times more likely to produce results compared to conventional methods of care, with 39 percent of patients who reached or surpassed the equivalent of 150 minutes of weekly brisk walking able to reach a healthy liver threshold.[2]

In order to determine which genes were active in fat tissue after exercise, the scientists studied various markers for fat metabolism.[3] The American Journal of Gastroenterology has published the findings.[4]

Prof Zierath concluded: “The right timing seems to be important to the body’s energy balance and to improving the health benefits of exercise, but more studies are needed to draw any reliable conclusions about the relevance of our findings to humans.[5]” According to Stine, prior research had not deduced what the required amount of exercise was to help patients with NAFLD achieve clinically meaningful improvement.[6] Stine adds that more research, particularly controlled randomized trials, are needed to validate their findings and to compare the impact of different exercise doses head-to-head.[7]

0. “A morning workout could hack your circadian rhythm and boost metabolism, science says” BBC Science Focus Magazine, 13 Feb. 2023,

1. “Scientists think they might have discovered the perfect time of day to exercise” Daily Mail, 13 Feb. 2023,

2. “Brisk walking for 22 minutes a day can ward off fatty liver disease: Study” Al Arabiya English, 12 Feb. 2023,

3. “Want To Burn More Fat? This May Be The Best Time To Exercise, According To New Study” Revyuh, 13 Feb. 2023,

4. “Exercise can lead to meaningful reductions in liver fat for patients with NAFLD, research confirms” News-Medical.Net, 8 Feb. 2023,

5. “Scientists reveal the exact time of day you need to exercise if you want to lose weight…” The US Sun, 13 Feb. 2023,

6. “Penn State College of Medicine Research Confirms Exercise as Treatment for Nonalcoholic Fatty Liver Disease” PennWatch, 9 Feb. 2023,

7. “Scientists reveal best time of the day to exercise to burn fat” My London, 13 Feb. 2023,

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