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February 01, 2010

Watch What you Eat After Exercise

Many people start the day on jogging trails or on treadmills, believing that working out is the best way to lose weight.
ExerciseHowever, recent research says that what you eat after exercise is just as important as the workout itself.
According to Jeffrey Horowitz of the University of Michigan, what you consume affects the body's metabolism.
In his recent study published in the Journal of Applied Physiology, he wrote that "Exercise enhanced insulin sensitivity, particularly when meals eaten after the workout session contained a relatively low carbohydrate content."

According to Science Daily, "Enhanced insulin sensitivity means that it is easier for the body to take sugar from the blood stream to tissues like muscles, where it can be stored or used as fuel."

For the experiment, nine healthy sedentary men, all between 28 to 30 years old, spent four separate sessions at the University of Michigan Hospital.

They were given different regimens: some did not exercise and ate meals to match their daily calorie expenditure; some exercised for approximately 90 minutes at moderate intensity, and then ate meals that matched their caloric expenditure composed of carbohydrate, fat and protein.

The third group exercised for approximately 90 minutes and ate food with a relatively low carbohydrate content, but with enough total calories. The fourth group exercised for approximately 90 minutes at a moderate intensity and then ate relatively low-calorie but high carbohydrate content meals.

There was an increase in insulin sensitivity following exercise. However, when participants didn't consume many carbohydrates after they worked out, their insulin sensitivity significantly increased.

According to Science Daily, "Impaired insulin sensitivity is a hallmark of Type II diabetes, as well as being a major risk factor for other chronic health problems, such as heart disease."

Dr. Horowitz told the Science Daily that "Although weight loss is important for improving metabolic health in overweight and obese people, these results suggest that people can still reap some important benefits from exercise without under-eating or losing weight."

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