NIA Caloric restriction (IMAGE) NIH/National Institute on Aging Caption The research found calorie restriction improves muscle health and offers additional health benefits. Credit Illustration courtesy of NIA. Usage Restrictions For use with media coverage of this news release only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.