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Study Finds Exercising Before Breakfast Burns More Fat

Study Finds Exercising Before Breakfast Burns More Fat


There has long been a debate regarding whether it is best to eat before or after exercising in the morning. A recent study has found that exercising before eating burns more fat and improves insulin sensitivity.





Thirty obese or overweight adult men participated in the study. The participants were split into three groups; breakfast before exercise, exercise before breakfast, or no exercise. The exercise groups engaged in moderate intensity cycling in the morning 3 times per week for 6 weeks.  Half of them ate breakfast before exercising and half did not. The researchers took blood samples at baseline and at the end of the study to measure plasma glucose, triglyceride, total cholesterol, HDL cholesterol, and LDL cholesterol concentrations.





Participants who exercised before eating breakfast burned twice the amount of fat than those who ate before exercising. They also had improved insulin sensitivity. The researchers stated that the increase in fat burned is due to lower insulin levels during exercise, which means the participants used more of the fat from their fat tissues and within their muscles as fuel. 





The study was conducted by researchers from the University of Bath. It was published on October 19, 2019 in The Journal of Clinical Endocrinology & Metabolism.


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