When food volume drops, so does the electrolyte intake that normally comes bundled with meals. Sodium, potassium, and magnesium all fall short quickly, and the result is fatigue, headaches, and muscle cramps that have nothing to do with fitness. Both LMNT and Liquid IV are designed to close that gap, but they take opposite approaches to the sugar question.
This comparison is for people on a GLP-1 who are eating fewer calories and want a hydration product that earns its place in a tight daily budget. If you are tracking protein, keeping carbohydrates purposeful, or managing blood sugar, the formulation details below matter more than the marketing.
LMNT
LMNT
LMNT is a stick-pack electrolyte mix with 1,000 mg sodium, 200 mg potassium, and 60 mg magnesium per serving and zero grams of sugar. The sodium level is higher than most competitors by design — the formula is built around research suggesting that active people and low-carbohydrate eaters need more sodium than standard dietary guidelines recommend. Flavors are sweetened with stevia.
Pros
- +Zero sugar and zero carbohydrates, so it adds no calories to a reduced-appetite day
- +1,000 mg sodium per serving covers a meaningful share of the increased losses that come with lower food volume
- +60 mg magnesium per serving provides a small but useful contribution to a nutrient many GLP-1 users run short on
Cons
- –High sodium content (1,000 mg) may not suit people managing hypertension — check with your clinician
- –Stevia aftertaste is noticeable and polarizing; no unflavored option in the standard lineup
Liquid IV
Liquid IV
Liquid IV uses a Cellular Transport Technology (CTT) formula based on the World Health Organization oral rehydration ratio of glucose to sodium, which is intended to accelerate water absorption. Each serving contains 11 grams of sugar alongside 500 mg sodium and 380 mg potassium. It is widely available in retail stores and comes in a broad range of flavors.
Pros
- +380 mg potassium per serving is higher than LMNT and supports muscle and nerve function
- +Broad retail availability makes it easy to find without ordering online
- +The glucose-sodium co-transport mechanism may improve absorption speed during acute dehydration
Cons
- –11 g of added sugar per serving adds calories and carbohydrates that most GLP-1 users are actively reducing
- –Lower sodium (500 mg) may underserve people with elevated losses from reduced food intake or heat
- –Not suitable for people keeping carbohydrates very low
Common questions
Is LMNT good for people on Ozempic or Wegovy?+
LMNT is a zero-sugar electrolyte mix that fits a lower-calorie, lower-carbohydrate day. It provides 1,000 mg sodium, 200 mg potassium, and 60 mg magnesium per packet. Whether it is right for your specific situation depends on your diet and any conditions you are managing — your clinician or pharmacist can advise on your medication routine.
Does Liquid IV have too much sugar for weight loss?+
Liquid IV contains 11 g of added sugar per serving, which adds 45 calories and carbohydrates. For people working to keep overall calorie and carbohydrate intake lower, that is a meaningful tradeoff. LMNT or a plain electrolyte tablet are zero-sugar alternatives worth comparing.
How much sodium do I need on a GLP-1?+
When eating less food, sodium intake from meals naturally drops. Many dietitians suggest people eating low-calorie or low-carbohydrate diets pay closer attention to sodium intake. Needs vary by individual, activity level, and health status. Ask your clinician or registered dietitian for a number that fits your specific situation.
Can I mix LMNT with protein powder?+
Yes — LMNT dissolves in water and can be combined with an unflavored or complementary-flavored protein powder. Check that the combined sodium content fits your daily target if you are tracking intake carefully.
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General wellness and nutrition information, not medical advice. We help with nutrition, not medication — talk to your clinician or pharmacist about your medication and routine.