
GLP-1 medicines are gaining traction as insurance coverage protection expands and extra folks discover them as a part of their well being journey (11). However whereas entry is bettering, many sufferers aren’t getting the diet steerage they should handle frequent unwanted side effects, placing them in danger for points like dehydration.
In truth, a long time of analysis present that individuals taking GLP-1 medicines could also be extra liable to dehydration, particularly when consumption drops or unwanted side effects make it tougher to eat and drink sufficient (2,3).
The excellent news? Staying effectively hydrated is totally doable with the precise methods. Forward, we’ll break down why dehydration can occur on GLP-1 medicines, the indicators to look at for, and easy, sensible suggestions that will help you keep hydrated and supported each step of the best way.

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Why GLP-1 Drugs Can Improve Dehydration
GLP-1 medicines work partly by lowering urge for food, which is a giant cause they’re efficient for weight reduction (4). However together with fewer meals cravings, analysis exhibits that some folks taking these medicines may be at larger threat for dehydration and nutrient shortfalls (3,5).
There are a few causes this will occur. First, unwanted side effects like nausea, vomiting, and diarrhea are pretty frequent, particularly early on, and all of those can have an effect on your physique’s fluid steadiness (9). Second, when meals consumption drops, it’s straightforward for fluid consumption to fall too. In the event you’re consuming much less total, you could not really feel as motivated to drink, which may quietly set the stage for dehydration (7).
In additional extreme circumstances, ongoing fluid loss can pressure the kidneys (8). The excellent news? There are proactive steps you possibly can take to guard your hydration and total well being. Earlier than we dive into these methods, let’s stroll by the commonest indicators of dehydration to maintain in your radar.

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Widespread Indicators You Could Be Dehydrated
Your physique is fairly good at sending indicators when your fluid consumption isn’t assembly your wants. Whether or not dehydration is said to GLP-1 unwanted side effects or just not consuming sufficient, the warning indicators are inclined to look very related (9).
Widespread indicators of gentle dehydration embrace (9):
- Feeling thirsty
- Dry mouth
- Complications
- Darkish yellow urine
- Urinating much less typically than normal
- Muscle cramping
If dehydration continues over time, signs can change into extra severe. Indicators of extra extreme dehydration embrace (9):
- Little to no urination, or very darkish yellow or amber-colored urine
- Dry, shriveled-looking pores and skin
- Dizziness or lightheadedness
- Irritability or confusion
- Speedy heartbeat
- Speedy respiratory
- Sunken eyes
- Excessive tiredness or listlessness
- In extreme circumstances, shock or lack of consciousness
Recognizing these indicators early might help you are taking motion earlier than dehydration turns into an even bigger difficulty, particularly in the event you’re managing unwanted side effects from GLP-1 medicines.
How A lot Water Do You Want on GLP-1s?
Fluid wants aren’t one-size-fits-all. How a lot you want depends upon components like your age, physique dimension, exercise stage, and even the local weather you reside in (10). That’s why it’s essential to work along with your healthcare workforce to determine a each day fluid aim that is sensible for you.
On common, analysis revealed in JAMA Inside Medication means that many individuals taking GLP-1 medicines ought to purpose for about 8 to 12 cups of fluids per day (roughly 2 to three liters), together with consuming loads of high-water meals (7). That mentioned, this quantity continues to be decrease than the final each day water suggestions for adults ages 19 to 30, that are 3.7 liters per day for males and a pair of.7 liters per day for ladies (10).
The largest takeaway? Let your physique information you. Search for gentle, pale-colored urine and common lavatory journeys all through the day. Take note of how you are feeling, too. Your vitality ranges, pores and skin, and total temper can all provide useful clues about whether or not you’re staying adequately hydrated.

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Tricks to Keep Hydrated Throughout Your GLP-1 Weight Loss Journey
You don’t want so as to add one other huge process to your psychological to-do listing to drink extra water. Staying hydrated might be so simple as constructing small, constant habits into your day. As MyFitnessPal dietitian Katherine Basbaum places it, “Hydration shouldn’t really feel like a chore, make it enjoyable! Attempt including lemon or fruit to your water, use a reusable bottle you truly like, and observe your fluids within the app. Set a each day aim, and in the event you hit it constantly for a few weeks, reward your self with one thing enjoyable, like that new water bottle you’ve been eyeing.”
Attempt these easy tricks to keep hydrated:
- Begin your day with water. Drink one cup of water earlier than your morning espresso or tea to set the tone for the day.
- Preserve water inside attain. Refill a reusable bottle and convey it with you. Sip all through the day as a substitute of gulping all of sudden.
- Eat your fluids, too. Add water-rich meals like cucumbers, watermelon, and broth-based soups to meals and snacks.
- Be aware of caffeine and alcohol. These can contribute to fluid loss, so purpose to restrict them or steadiness them with further water (12).
- Hearken to your physique. In case your urine seems to be darker than normal or your eyes really feel dry, that’s your cue to seize a glass of water.
Small adjustments add up and over time, these habits could make staying hydrated really feel automated.

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Backside Line
GLP-1 medicines could be a highly effective software for weight administration, however additionally they carry distinctive challenges, particularly in the case of staying hydrated. (4,2). Between unwanted side effects that scale back urge for food and fluid consumption, and the physique’s pure indicators that may be straightforward to overlook, dehydration is an actual concern. (2)
With consciousness and small, constant habits, you possibly can help your hydration and your total well being. Take note of your physique’s cues, purpose for fluids and water-rich meals all through the day, and make hydration easy and fulfilling. Bear in mind, it’s not about an ideal routine, it’s about constructing habits that work for you and conserving your physique fueled in your GLP-1 journey.
Let MyFitnessPal allow you to get began monitoring your hydration right this moment with the in-app water tracker.
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