Trim Carbs, Add Protein, Lose Weight, Sleep Better
If you’re trying to lose weight, eating a high-protein diet can help by promoting better sleep, a new study finds.
Previous studies show increasing sleep aids weight loss, so researchers from Purdue University decided to look at what type of this diet would accomplish this.
1st, they did a pilot study and found that in 14 participants, consuming more dietary protein resulted in better sleep after 4 weeks of weight loss.
2nd, they added 44 overweight or obese participants in the main study, and had them consume either a normal-protein or a higher-protein weight loss diet. These groups consumed either 0.8 or 1.5 kilograms of protein for each kilogram of body weight daily for 16 weeks.
The participants completed a survey to rate the quality of their sleep every month throughout the study, and those who consumed more protein while losing weight reported an improvement in sleep quality after 3 and 4 months of dietary intervention.
A dietitian designed a diet that met each study participant’s daily energy need and 750 calories in fats and carbohydrates were trimmed per day while maintaining the protein amount based on whether they were in the higher or normal protein group. The sources of protein used in the 2 studies varied from beef, pork, soy, legumes and milk protein.
“This research adds sleep quality to the growing list of positive outcomes of higher-protein intake while losing weight, and those other outcomes include promoting body fat loss, retention of lean body mass and improvements in blood pressure,” says Prof. Wayne Campbell, the lead author of the study, which appears in the American Journal of Clinical Nutrition.
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Paul Ebeling
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