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お酒・アルコールは断食を破る?(脂肪燃焼が止まる科学的理由)

📅 Oct 13, 2026 ⏱️ 1 min read
🩺 Medically Reviewed & Fact-Checked by FastingTracker Medical Board • Written by Aly Owen • Updated: Oct 16, 2026
お酒・アルコールは断食を破る?(脂肪燃焼が止まる科学的理由)

✨ Key Takeaways

  • Learn the best practices of intermittent fasting for optimal health.
  • Understand how to track your fasting windows effectively.
  • Discover the science-backed metabolic benefits of fasting.

⚡ 要点まとめ (TL;DR)

  • はい、あらゆるアルコール飲料は断食を直ちに破ります。エタノールは1gあたり約7kcalです。
  • 肝臓は毒性のあるアルコールの分解を最優先するため、体脂肪の燃焼が完全にストップします。
  • お酒は必ず摂食ウィンドウ(食事時間)内に飲み、空腹状態の胃には絶対に入れないでください。

はい、お酒は確実に断食を破ります。エタノール(アルコール)は体にとって毒素とみなされるため、肝臓はすべての代謝経路を差し置いてアセトアルデヒドの無毒化に集中します。その結果、脂肪燃焼が完全に一時停止します。

📱 断食時間をかんたんに記録

断食中かどうか、もう迷う必要はありません。無料アプリ「Fasting Tracker」なら、リアルタイムのタイマー通知、水分摂取の記録、パーソナルな減量分析が使えます。

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医学文献・臨床研究

  1. Siler, S. Q., et al. (1999). The American Journal of Clinical Nutrition, 70(5), 928-936.

免責事項:Fasting Tracker のコンテンツは教育・情報提供のみを目的としており、医師による診断や治療に代わるものではありません。長時間の断食を始める前に医師にご相談ください。

Aly Owen - Nutritionist
🩺 Medically Reviewed & Fact-Checked

Aly Owen ✓ Verified

Certified Nutritionist & Intermittent Fasting Expert

Aly Owen is a certified nutritionist specializing in metabolic health, intermittent fasting protocols, and sustainable weight loss with over 8 years of clinical experience. All guidance is verified against peer-reviewed literature.

Certified Nutritionist (CN) • Metabolic Health Specialist • View Full Bio & Credentials →

📚 Scientific Studies & Medical References (5 Sources) ▼

FastingTracker adheres to strict editorial standards, citing peer-reviewed clinical trials and authoritative medical institutions.

  1. New England Journal of Medicine (2019): de Cabo R, Mattson MP. Effects of Intermittent Fasting on Health, Aging, and Disease. N Engl J Med. 381(26):2541-2551. PubMed 31881139 • DOI
  2. Cell Metabolism (2014): Levine ME, Suarez JA, Brandhorst S, et al. Low Protein Intake and Periodic Fasting Promote Longevity and Autophagy. Cell Metab. 19(3):407-417. PubMed 24606898 • DOI
  3. Obesity (Silver Spring, 2018): Anton SD, Moehl K, Donahoo WT, et al. Flipping the Metabolic Switch: Understanding and Applying Health Benefits of Fasting. Obesity. 26(2):254-268. PubMed 29086496 • DOI
  4. Annual Review of Nutrition (2017): Patterson RE, Sears DD. Metabolic Effects of Intermittent Fasting. Annu Rev Nutr. 37:371-393. PubMed 28715993 • DOI
  5. Autophagy (2010): Alirezaei M, Kemball CC, Flynn CT, et al. Short-term fasting induces profound neuronal and systemic autophagy. Autophagy. 6(6):702-710. PubMed 20534972 • DOI
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