Does LMNT Have Maltodextrin? What's in the Flavor Carrier (and Does It

Does LMNT Have Maltodextrin? What's in the Flavor Carrier (and Does It Break a Fast?)

Last updated: October 2026. LMNT is changing its flavor carriers over the next year, so I'll update this as things change.

Short answer: yes, most flavors do. LMNT's own website says every flavored mix except Lemonade Salt uses 300 to 450 milligrams of maltodextrin per stick as a flavor carrier. It doesn't appear on the label, because carriers aren't listed separately from "natural flavors." If you picked LMNT because it's marketed as zero sugar, keto-friendly, and free of anything you don't need, it's reasonable to want to know what that means. Here's the full picture, including the parts that cut in LMNT's favor.

What LMNT Says Is in Each Flavor

LMNT published a detailed breakdown on its science site. According to that page:

Lemonade Salt uses about 330mg of tapioca fiber as its carrier, not maltodextrin. Pink Lemonade uses tapioca fiber too, plus a small amount of acacia fiber for its raspberry component. Every other flavored mix currently uses 300 to 450mg of maltodextrin, which they put at roughly 1 to 2 calories. Raw Unflavored has no natural flavors and therefore no carrier at all, and neither does LMNT Sparkling, since it's already liquid.

They also say they're switching all flavors to tapioca fiber, with Raspberry Salt and Orange Salt first and the rest to follow. That's a change in the right direction, but it's still possible that what's sitting on a store shelf today may be an older version than what ships from their website next month.

Why This Became a Controversy

The issue was never that LMNT uses a flavor carrier. Nearly every flavored powder does, because natural flavors are concentrated liquids and have to be mixed into something dry to spread evenly. The issue was where the information lived. Independent lab testing reported in October 2024 found maltodextrin in LMNT's flavored mixes, and it wasn't on the label. LMNT then addressed it publicly and now discloses the carrier on its website, but still not it's label.

In June 2025, a proposed class action was filed in New York (Sciortino et al. v. Drink LMNT, Inc.). The complaint alleges that LMNT's marketing, including phrases like "no dodgy ingredients" and its positioning as keto-, paleo-, and whole-foods-friendly, is misleading given that the product contains maltodextrin. It also alleges that the maltodextrin amount per serving exceeds the potassium and magnesium amounts combined. These are allegations in a lawsuit, and LMNT's position is that the amount is small and disclosed on its site. Regardless of the case, what isn't in dispute is the ingredient itself and the amount, and both come from LMNT.

Does Maltodextrin Break a Fast?

On calories alone, probably not. At 300 to 450 milligrams, maltodextrin works out to roughly 1 to 2 calories, in line with what LMNT states. That's far below any caloric load that would matter for a fast, and it's in the same neighborhood as the 2 to 5 calories in a cup of black coffee.

The more common concern is blood sugar, since maltodextrin has a high glycemic index, higher than table sugar. But glycemic index is measured using large amounts, around 50 grams, and what matters at LMNT's dose is how little is actually there. I'd call a meaningful insulin response from 300 to 450mg possible, though I haven't seen a study that tested this specific amount, and individual responses vary. If you wear a continuous glucose monitor, you can test it yourself in a few minutes.

If your standard is strict, the two-part test I use in my complete list of what breaks a fast applies here too: calories and insulin response are what matter, calories are negligible, but insulin is unsure.

What the Research Says About Maltodextrin and Your Gut

This is the part that matters to a lot of people reading this. There is quite a bit of research on maltodextrin and the gut. A study in PLOS ONE found that maltodextrin increased the adhesion and biofilm formation of an E. coli strain associated with Crohn's disease in cell models. Separate work in mice found that maltodextrin consumption depleted the protective mucus layer of the intestine, promoted stress in gut cells, and worsened inflammation in a colitis model, in a dose-dependent way. Researchers in this area have described maltodextrin as a possible stressor of the intestinal environment, and the lawsuit itself cites related work.

Here's what I'd keep in mind. This research is in cell and animal models. It isn't human trials at the doses in an electrolyte stick, and I haven't found any that tests 300 to 450 milligrams in people. Dose matters, and a few hundred milligrams a day is a very different exposure than a diet heavy in processed foods that contain maltodextrin. So I wouldn't tell you one stick of LMNT is harming your gut. I would tell you that if you have a history of inflammatory bowel conditions, a sensitive gut, or you're deliberately avoiding processed additives, it's a reasonable ingredient to want to avoid, and that's a fair call to make with the information above. It also adds up. Maltodextrin shows up in a lot of packaged food, so the electrolyte mix is rarely the only source.

If You Want to Avoid It

If you like LMNT and want to skip the maltodextrin, you have a few options. LMNT Raw Unflavored and LMNT Sparkling contain no carrier, and Lemonade Salt uses tapioca fiber instead. You can also flavor the unflavored version yourself with a squeeze of lemon. As the other flavors move to tapioca fiber, this will matter less over time.

If you're comparing across brands, the question to ask isn't just "does it have maltodextrin?" It's whether the label tells you what's carrying the flavor. Natural flavors is a legal umbrella that doesn't require a brand to list the individual compounds or the carrier, which is how a product can be marketed as minimal and still contain something most customers would want to know about. I've compared how that plays out across the major brands in my electrolyte drink comparison and in Liquid IV vs LMNT.

Where Optimize Fits

I built Optimize without natural flavors, so there's no flavor carrier to disclose in the first place. It's flavored with real ginger, lemon peel, and vanilla bean, and each one is named on the label. That was a deliberate choice, partly for exactly this reason: if a flavor needs a carrier to work, I'd rather skip the flavor than hide an ingredient behind it.

The Bottom Line

Yes, most LMNT flavors contain 300 to 450 milligrams of maltodextrin as a flavor carrier, it isn't listed on the label, and LMNT has acknowledged it on its website and is moving toward tapioca fiber. At that amount it won't break a fast on calories, a meaningful blood sugar effect is unlikely, but still potentially possible, though not tested at this dose. The gut research is real but comes from cell and animal studies, so it's a reason for caution if you have a sensitive gut, not proof of harm at this dose. How much weight to give it is your call, and now you have what you need to make it.

Fuel your fast, feel your best.