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Settings

Daily requirements
2.5 L
Reminders programmed10

Notifications schedule

07:00
245 ml
08:30
245 ml
10:00
245 ml
11:30
245 ml
13:00
245 ml
14:30
245 ml
16:00
245 ml
17:30
245 ml
19:00
245 ml
20:30
245 ml

Come utilizzare Promemoria Idratazione

Insert your body weight

Enter your weight in kg to calculate daily water needs. The standard OMS formula uses 35ml per kg of body weight (e.g. 70kg = 2450ml/day). Values may vary based on physical activity and climate.

Set sleep schedule and reminder interval

Specify wake-up time and bedtime, then choose how often you want reminders. The tool automatically calculates how much water to drink at each reminder to meet your daily needs.

Authorize browser notifications and send reminder

Click "Remind Me" and authorize the browser to send notifications when requested. You will receive a visual and audible alert at each interval set. Settings are saved locally and applied on your next visit.

Suggerimenti

  • Drink water during meals and it's less efficient for hydration than drinking between meals: Water consumed during meals is digested more quickly with food. Focus on reminders between breakfast and lunch, and between lunch and dinner.
  • Urine that is pale yellow or clear - the best indicator of good hydration. If it's dark yellow, increase fluid intake regardless of when you last had a drink.
  • In hot weather or during intense physical activity, add 500-750ml to your base need to compensate for sweat loss. Adjust manually in the tool settings.

Domande frequenti

How much water should I drink each day?

General recommendation is approximately 35 ml/kg body weight: 2450 ml for a 70 kg person. However, need increases with intense physical activity, heat, pregnancy and breastfeeding. EFSA guidelines suggest 2 liters/day for women and 2.5 liters/day for men as adequate total intake, including food liquids.

Does the reminder work even with the browser closed?

No reminders are managed by a JavaScript timer in the browser: they only work while the page is open and the browser is active. For persistent notifications even when the browser is closed, consider mobile apps dedicated to hydration (WaterMinder, Plant Nanny, Hydro Coach).

Are browser notifications enabled by default?

No notifications are required for push messages from the browser. The first time you receive a reminder, the browser will show a permission request. If you previously declined it, reactivate them in browser settings (site > Notifications > Allow).

Is this calculation suitable for children, pregnant women, or athletes?

No, the formula 35 ml/kg is a general estimate for healthy adults. Children, pregnant women, breastfeeding mothers, athletes, and people with kidney or heart problems have different needs: consult a doctor or a nutritionist for a personalized value.

Are my settings saved if I close the browser?

Settings are saved in localStorage when you click "Save settings" and loaded automatically on your next visit. Notification permissions and active timer need to be reactivated every new session as they reset upon closing the tab.