Méthodologie
La formule, les hypothèses et les sources derrière le chiffre.
Maintenu par l'équipe WaterDailyGoal TeamDernière mise à jour Mise à jour éditoriale ; sans validation médicale.
La formule, étape par étape
- WaterDailyGoal utilise 33 ml/kg pour estimer les boissons. Les scénarios de 30–40 ml/kg et les ajustements d'activité et de climat sont des hypothèses du site, pas des besoins individuels validés ni des formules NAM/EFSA.
- kg × 0.033 L; +0 / +0.3 / +0.6 / +1.0 L; ×0.95 / ×1.0 / ×1.10.
- Grossesse, allaitement et médicaments GLP-1 ne modifient pas automatiquement cette estimation. Les références d'eau totale incluent les aliments ; ce ne sont pas des doses minimales à boire. Suivez un avis clinique individuel.
Le résultat est un objectif quotidien de boisson. L'alimentation apporte souvent de l'eau en plus, mais nous gardons le chiffre principal centré sur ce que vous buvez.
| Poids | Base | Objectif approx. | Onces |
|---|---|---|---|
| 60 kg (132 lb) | 2 L | 2.3 L | 78 oz |
| 70 kg (154 lb) | 2.3 L | 2.6 L | 88 oz |
| 80 kg (176 lb) | 2.6 L | 2.9 L | 98 oz |
| 90 kg (198 lb) | 3 L | 3.3 L | 112 oz |
Sources
- 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.Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate, Summary: water adequate intakes; drinks and food
- 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.Scientific Opinion on Dietary Reference Values for water, EFSA Journal 8(3):1459, abstract and conclusions
- 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 — A three-day crossover trial in 50 habitual male coffee drinkers compared four 200 ml coffee servings with water and found no significant differences in hydration markers; not a general caffeine safety threshold.
- 8.Maughan et al., Beverage Hydration Index, AJCN 2016 — A controlled short-term study in 72 healthy, hydrated men compared urine output after 1 L of different drinks. Milk and ORS showed greater short-term retention; BHI is not a conversion to effective beverage volume or proof of long-term benefit.AJCN 103(3):717–723; abstract, methods and results (2-hour BHI and 4-hour cumulative urine)