CortexLit tool · nutrition basics

Hydration Routine Planner

Decide whether you need a scheduled drink routine at all, and if you do, build one around moments that already happen.

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What this is based on

Every output names at least one verified PubMed source.

Valtin H. "Drink at least eight glasses of water a day." Really? Is there scientific evidence for "8 x 8"? Am J Physiol Regul Integr Comp Physiol. 2002;283(5):R993-R1004.
PMID 12376390
Critical review of the evidence base for the 8x8 rule. · weight 0.5 · No scientific studies were found supporting a rigid eight-glasses rule for healthy, sedentary adults in temperate climates; food and other drinks count, and thirst is a usable guide.
Parkinson E, Hooper L, Fynn J, et al. Low-intake dehydration prevalence in non-hospitalised older adults: Systematic review and meta-analysis. Clin Nutr. 2023;42(8):1510-1520.
PMID 37330324
Systematic review and meta-analysis of low-intake dehydration prevalence. · weight 1.0 · Low-intake dehydration is common in community-dwelling older adults, a group in whom the thirst signal is blunted.

Limits: This planner deliberately does not output a single universal daily volume, because the evidence does not support one for healthy adults. It sizes the routine you choose.

Privacy

Inputs stay in this page's memory. There is no telemetry, no analytics call and no network request. The optional share card below is off until you switch it on, is built on your own device, and never includes anything you did not choose to include.

Free vs Plus

Free (this page)

  • Build and rebuild routines
  • Copy or download the plan
  • Offline, nothing stored

Plus (optional, one-time)

  • Reminder text for each anchor
  • A carer-friendly one-page version

Payment link: PLACEHOLDER_STRIPE_PAYMENT_LINK — not live yet. No account, no subscription, no data leaves this page.

Related

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