Daily Water Intake Calculator

Yes — it's called hyponatremia (water intoxication). Drinking excessive amounts can dilute blood sodium, causing headaches, nausea, and in severe cases, seizures. This is rare in everyday life but has occurred in marathon runners who drank only water without electrolyte replacement.

All three. Drink 500ml 2 hours before exercise. Drink 150-250ml every 15-20 minutes during exercise. Drink 500ml per 0.5 kg of body weight lost (weigh before and after) for recovery. For exercise lasting over 60 minutes, include electrolytes (sodium, potassium).

Drinking water before meals (500ml, 30 minutes before) reduces calorie intake by creating satiety. Cold water increases metabolism minimally (your body burns a few extra calories warming it). Water also has zero calories and can replace calorie-dense beverages. But it is not a fat-burning agent on its own.

Caffeine is a mild diuretic, but research shows that habitual coffee drinkers become tolerant to its diuretic effects. Studies confirm that moderate coffee consumption (3-4 cups/day) contributes to daily fluid intake rather than causing dehydration. The water in coffee and tea counts toward hydration.

India's tropical climate means higher baseline fluid loss through sweating. Many traditional diets are high in sodium (pickles, papad, processed foods), increasing fluid needs. Heavy outdoor work, commuting in heat, and limited access to clean drinking water in some areas all contribute. Thirst perception also dulls with age, making elderly individuals particularly vulnerable.