PMID- 32940695 OWN - NLM STAT- MEDLINE DCOM- 20210512 LR - 20220218 IS - 1753-4887 (Electronic) IS - 0029-6643 (Print) IS - 0029-6643 (Linking) VI - 79 IP - 1 DP - 2021 Jan 1 TI - Effects of caloric restriction on human physiological, psychological, and behavioral outcomes: highlights from CALERIE phase 2. PG - 98-113 LID - 10.1093/nutrit/nuaa085 [doi] AB - Caloric restriction (CR) is a strategy that attenuates aging in multiple nonhuman species. The Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE) trials are part of a research program aiming to test the effects of CR on aging and longevity biomarkers in humans. Building on CALERIE phase 1, CALERIE phase 2 (CALERIE 2) was the largest study to date to assess sustained CR in healthy humans without obesity. In a 24-month randomized controlled trial comprising 218 participants at baseline, CALERIE 2 showed that moderate CR, 11.9% on average, induced improvements in aging-related biomarkers without adversely affecting psychological or behavioral outcomes. The objectives of this report are to summarize and review the highlights of CALERIE 2 and report previously unpublished results on eating disorder symptoms and cognitive function. This article specifically summarizes the physiological, psychological, aging, behavioral, and safety results of the trial. Also provided are research directions beyond CALERIE 2 that highlight important opportunities to investigate the role of CR in aging, longevity, and health span in humans. CI - (c) The Author(s) 2020. Published by Oxford University Press on behalf of the International Life Sciences Institute. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Dorling, James L AU - Dorling JL AD - Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. FAU - van Vliet, Stephan AU - van Vliet S AD - Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. FAU - Huffman, Kim M AU - Huffman KM AD - Duke University School of Medicine, Durham, North Carolina, USA. FAU - Kraus, William E AU - Kraus WE AD - Duke University School of Medicine, Durham, North Carolina, USA. FAU - Bhapkar, Manjushri AU - Bhapkar M AD - Duke University School of Medicine, Durham, North Carolina, USA. FAU - Pieper, Carl F AU - Pieper CF AD - Duke University School of Medicine, Durham, North Carolina, USA. FAU - Stewart, Tiffany AU - Stewart T AD - Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. FAU - Das, Sai Krupa AU - Das SK AD - US Department of Agriculture, Jean Mayer Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts, USA. FAU - Racette, Susan B AU - Racette SB AD - Washington University School of Medicine, St. Louis, Missouri, USA. FAU - Roberts, Susan B AU - Roberts SB AD - US Department of Agriculture, Jean Mayer Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts, USA. FAU - Ravussin, Eric AU - Ravussin E AD - Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. FAU - Redman, Leanne M AU - Redman LM AD - Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. FAU - Martin, Corby K AU - Martin CK AD - Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. CN - CALERIE Study Group LA - eng GR - U01 AG020487/AG/NIA NIH HHS/United States GR - U01 AG020478/AG/NIA NIH HHS/United States GR - U01 AG020480/AG/NIA NIH HHS/United States GR - U01 AG022132/AG/NIA NIH HHS/United States GR - P30 DK072476/DK/NIDDK NIH HHS/United States GR - P30 DK056341/DK/NIDDK NIH HHS/United States GR - U54 GM104940/GM/NIGMS NIH HHS/United States PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Nutr Rev JT - Nutrition reviews JID - 0376405 RN - 0 (Biomarkers) SB - IM MH - Adult MH - *Aging MH - Biomarkers/*analysis MH - *Caloric Restriction MH - *Energy Intake MH - Energy Metabolism MH - Female MH - Humans MH - Inflammation MH - Longevity MH - Male MH - Middle Aged MH - Nutritional Status MH - Obesity MH - Oxidative Stress MH - Young Adult PMC - PMC7727025 OTO - NOTNLM OT - aging OT - longevity OT - metabolism OT - quality of life OT - randomized controlled trial EDAT- 2020/09/18 06:00 MHDA- 2021/05/13 06:00 PMCR- 2021/09/17 CRDT- 2020/09/17 12:16 PHST- 2020/04/16 00:00 [received] PHST- 2020/06/01 00:00 [revised] PHST- 2020/09/18 06:00 [pubmed] PHST- 2021/05/13 06:00 [medline] PHST- 2020/09/17 12:16 [entrez] PHST- 2021/09/17 00:00 [pmc-release] AID - 5907056 [pii] AID - nuaa085 [pii] AID - 10.1093/nutrit/nuaa085 [doi] PST - ppublish SO - Nutr Rev. 2021 Jan 1;79(1):98-113. doi: 10.1093/nutrit/nuaa085.