@article{bd8cdd7629d443b9bc8b645415899a8b,
title = "Daily energy expenditure through the human life course",
abstract = "Total daily energy expenditure ({"}total expenditure{"}) reflects daily energy needs and is a critical variable in human health and physiology, but its trajectory over the life course is poorly studied. We analyzed a large, diverse database of total expenditure measured by the doubly labeled water method for males and females aged 8 days to 95 years. Total expenditure increased with fat-free mass in a power-law manner, with four distinct life stages. Fat-free mass-adjusted expenditure accelerates rapidly in neonates to ~50% above adult values at ~1 year; declines slowly to adult levels by ~20 years; remains stable in adulthood (20 to 60 years), even during pregnancy; then declines in older adults. These changes shed light on human development and aging and should help shape nutrition and health strategies across the life span.",
author = "{International Atomic Energy Agency Doubly Labeled Water database group} and Herman Pontzer and Yosuke Yamada and Hiroyuki Sagayama and Ainslie, {Philip N.} and Andersen, {Lene F.} and Anderson, {Liam J.} and Lenore Arab and Issaad Baddou and Kweku Bedu-Addo and Blaak, {Ellen E.} and Stephane Blanc and Bonomi, {Alberto G.} and Bouten, {Carlijn V.C.} and Pascal Bovet and Buchowski, {Maciej S.} and Butte, {Nancy F.} and Camps, {Stefan G.} and Close, {Graeme L.} and Cooper, {Jamie A.} and Richard Cooper and Das, {Sai Krupa} and Dugas, {Lara R.} and Ulf Ekelund and Sonja Entringer and Terrence Forrester and Fudge, {Barry W.} and Goris, {Annelies H.} and Michael Gurven and Catherine Hambly and {El Hamdouchi}, Asmaa and Hoos, {Marjije B.} and Sumei Hu and Noorjehan Joonas and Joosen, {Annemiek M.} and Peter Katzmarzyk and Kempen, {Kitty P.} and Misaka Kimura and Kraus, {William E.} and Kushner, {Robert F.} and Lambert, {Estelle V.} and Leonard, {William R.} and Nader Lessan and Corby Martin and Medin, {Anine C.} and Meijer, {Erwin P.} and Morehen, {James C.} and Morton, {James P.} and Neuhouser, {Marian L.} and Guy Plasqui and Westerterp, {Klaas R.}",
note = "Copyright {\textcopyright} 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.",
year = "2021",
month = aug,
day = "13",
doi = "10.1126/science.abe5017",
language = "English",
volume = "373",
pages = "808--812",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science (AAAS)",
number = "6556",
}