WaterDailyGoal

計算方法

表示される数字の式、前提、出典です。

運営 WaterDailyGoal Team最終更新

式の流れ

  1. 基本量: 体重kg x 0.033 L。
  2. 活動量: 日常の動きや汗に合わせて加算。
  3. 気候: 涼しい日は少し低め、暑い日は高めに調整。
  4. ライフステージとGLP-1: 保守的な下限を適用。

結果は1日に飲む目標量です。食事からも水分は入りますが、表示は飲み物として意識する量に絞っています。

計算例（中程度の活動、普通の気候）
体重基本量目標の目安オンス
60 kg (132 lb)2 L2.3 L77 oz
70 kg (154 lb)2.3 L2.6 L88 oz
80 kg (176 lb)2.6 L2.9 L99 oz
90 kg (198 lb)3 L3.3 L111 oz

出典

  • 1.U.S. National Academies (IOM/NAM), 2005 — Adequate total water intake of about 3.7 L/day for men and 2.7 L/day for women, including water from food and all beverages.
  • 2.European Food Safety Authority (EFSA), 2010 — Adequate total water intake of 2.5 L/day for men and 2.0 L/day for women under temperate conditions.
  • 3.World Health Organization (WHO) — Notes that daily water requirements are individual and rise with temperature, physical activity, and illness; general adult needs are commonly put on the order of 2–3 L of total water per day.
  • 4.UK NHS (Eatwell Guide) — Suggests about 6–8 glasses (roughly 1.5–2 L) of fluid a day — water, lower-fat milk, tea and coffee all count toward the total.
  • 5.Mayo Clinic — General guidance of roughly 2.7–3.7 L of total fluids a day, with thirst and pale-yellow urine as everyday checks.
  • 6.U.S. Geological Survey (USGS) — The human body is about 60% water by weight.
  • 7.Killer, Blannin & Jeukendrup, PLOS ONE 2014 — Moderate coffee intake (about 4 cups/day) hydrates similarly to water in habitual drinkers.
  • 8.Maughan et al., Beverage Hydration Index, AJCN 2016 — Milk and oral rehydration solutions stay in the body longer than plain water, hydrating more effectively.