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Calorie Restriction Extends Life Span— But Which Calories?

  • Leonie K Heilbronn,
  • Eric Ravussin mail

    To whom correspondence should be addressed. E-mail:

  • Published: August 30, 2005
  • DOI: 10.1371/journal.pmed.0020231

About the Authors

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Competing Interests

The authors are conducting the first randomized clinical trial of caloric restriction in non-obese humans, funded by the National Institute on Aging (Bethesda, Maryland, United States).