Hydration Needs Based on Diet
Calculate hydration needs based on dietary factors like caffeine, alcohol, and sodium intake.
Hydration Needs Based on Diet
Calculate hydration needs based on dietary factors like caffeine, alcohol, and sodium intake.
This calculator is for informational purposes only and does not constitute medical advice. Consult a healthcare professional for personalised guidance.
How to Use This Calculator
This calculator adjusts your hydration needs based on dietary factors that increase fluid requirements.
- Step 1: Enter your body weight in kilograms.
- Step 2: Enter the number of caffeinated drinks, alcoholic units, and your estimated daily sodium intake.
- Step 3: Click "Calculate Hydration Needs" to see your personalised fluid recommendation.
Frequently Asked Questions
Caffeine has a mild diuretic effect — consuming approximately 3–5 cups of coffee per day may increase fluid loss slightly, requiring an additional 150ml per cup above normal intake.
Alcohol suppresses the hormone vasopressin, significantly increasing urine output. For every alcoholic unit consumed, add approximately 250ml of extra water to compensate.
Yes. High sodium intake increases fluid retention and thirst signals, and excess sodium is excreted in urine — requiring more water to process.