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How much water should I drink while on a GLP-1?

Daily hydration guidelines while on GLP-1 treatment, signs of dehydration to watch for, and tips to increase your water intake.

Updated over 2 weeks ago

Our general recommendation is to aim for 2-3 liters (8-12 cups) per day, spread throughout the day. We recommend this because hydration supports digestion, can help reduce side effects like constipation and nausea, and help maintain your energy.

We recommend setting a phone reminder for one glass every 60-90 minutes while awake if it helps.

What to drink:

  • Water (still or sparkling), unsweetened tea, herbal tea, and broths.

  • Add low-sugar electrolyte packets (sodium + potassium) on dose-increase days, flights, hot days, or after sweaty workouts. HydroBelle is a clinically backed option to increase your hydration.

  • Moderate coffee and tea are fine, but we recommend offsetting each caffeinated drink with an extra glass of water.

What to limit:

  • Alcohol (can worsen nausea and reflux)

  • Sugar-sweetened drinks, and highly caffeinated energy drinks.

Simple daily routine to meet your hydration goals:

  • Morning: 12-16 oz water within 30 minutes of waking.

  • Before meals: a small glass 10-15 minutes before eating.

  • Throughout the day: keep a 20-24 oz bottle at your desk and refill 2-3 times.

How to help limit side-effects:

  • For nausea, take small sips often and try ginger or peppermint tea - avoid chugging large volumes.

  • For constipation, pair fluids with fiber and a daily walk.

  • For reflux, sip between meals rather than during, and limit late-night drinks.

When to use electrolytes:

  • When sweating, at altitude, traveling, or feeling dizzy or experiencing cramps. Choose low-sugar blends (under 2-3 g sugar per serving). If you have kidney, heart, or blood pressure conditions, check with your provider first.


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