食事中のタンパク質の含有量の体重増加,エネルギー消費,過剰摂取中の身体構成に対する影響:ランダム化制御試験
George A Bray1, Steven R Smith, Lilian de Jonge
1Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA 70808, USA. George.bray@pbrc.edu
JAMA
|January 5, 2012
まとめ
低タンパク質ダイエットによる過食は,正常または高タンパク質ダイエットと比較して,体重増加が少なくなりました. タンパク質の摂取は,エネルギー消費と痩身量に影響しますが,脂肪の貯蔵は影響しません.
科学分野:
- メタボリック研究.
- 栄養科学とは,栄養科学である.
- 人間の生理学 人間の生理学
背景:
- 食事の構成が人間の過食とエネルギー消費に与える影響は,まだ十分に理解されていない.
- カロリー余剰時のタンパク質摂取量の変動の役割を調査することは,代謝健康に関する洞察にとって極めて重要です.
研究 の 目的:
- 低,正常,および高タンパク質のダイエットが過剰摂取中に体重増加,エネルギー消費,および体組成にどのように影響するかを決定する.
- エネルギーバランスと体質調節における食事中のタンパク質の特定の役割を解明する.
主な方法:
- 25人の健康な成人 (18~35歳) が10~12週間にわたって参加したランダム化比較試験です.
- 参加者は,5% (低),15% (正常),または25% (高) のタンパク質を含む食事で約954kcal/dの過剰摂取を受けました.
- 測定対象は,体組成 (DXA),休息時のエネルギー消費 (換気フード),総エネルギー消費 (ダブルラベルされた水) でした.
主要な成果:
- 低タンパク質のダイエットは,通常の (6.05 kg) と高タンパク質のダイエット (6.51 kg) に比べて,体重増加 (3.16 kg) が著しく減少しました.
- 体脂肪は,すべてのグループで同様に増加し,余剰カロリーの50〜90%を占めました.
- 休息時のエネルギー消費と体脂肪は,通常の食事と高タンパク質の食事では増加したが,低タンパク質の食事では増加しなかった.
結論:
- カロリー余剰は,タンパク質摂取に関係なく,脂肪増加の主な要因です.
- 食事中のタンパク質は,過食中にエネルギー消費と痩身量増量に大きな影響を与えます.
- タンパク質含有量は,過食への代謝適応を調節し,痩身量に影響するが,脂肪の蓄積には影響しない.
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