BodyArmor can help you stay hydrated during a bout of diarrhea, but it’s not ideal for the job. The main issue is sodium: BodyArmor contains only about 40 mg of sodium per 16-ounce bottle, which is roughly a quarter of what Gatorade or Powerade provides. Sodium is the single most important electrolyte for rehydration during diarrhea, and BodyArmor simply doesn’t have enough of it.
Why Sodium Matters During Diarrhea
When you have diarrhea, your body loses large amounts of water along with electrolytes, especially sodium and potassium. Sodium plays a unique role in rehydration because it helps your intestines absorb water. This is the principle behind oral rehydration solutions recommended by the World Health Organization: a specific balance of sodium and glucose triggers a transport mechanism in your gut that pulls water from your intestines back into your bloodstream.
Without enough sodium, drinking fluids still helps, but your body can’t absorb that fluid as efficiently. That’s why a drink’s sodium content matters more than almost any other ingredient when you’re dealing with diarrhea.
How BodyArmor Compares to Other Drinks
BodyArmor markets itself as a premium sports drink with coconut water as a base. It’s high in potassium and contains B vitamins, but its sodium content is notably low. At 40 mg per 16-ounce bottle, it has about one-quarter the sodium concentration of Gatorade (160 mg) or Powerade (150 mg). Medical-grade rehydration drinks like Pedialyte contain even more, typically around 370 mg of sodium per liter, specifically because they’re designed for fluid loss from illness.
Here’s a rough comparison per serving:
- BodyArmor: ~40 mg sodium, high potassium, coconut water base
- Gatorade: ~160 mg sodium, moderate potassium
- Powerade: ~150 mg sodium, moderate potassium
- Pedialyte: highest sodium of the group, formulated for illness-related dehydration
The potassium in BodyArmor is genuinely useful since diarrhea depletes potassium too. But potassium alone doesn’t drive the intestinal water absorption that sodium does. You’re getting part of what you need, not the full picture.
The Coconut Water Factor
BodyArmor uses coconut water as a key ingredient, and coconut water does contain natural electrolytes including potassium, sodium, and manganese. Some evidence suggests coconut water compares favorably to sports drinks for general hydration. However, according to the Mayo Clinic, coconut water is no more hydrating than plain water, and its electrolyte amounts vary by brand. The naturally occurring sodium in coconut water is low, which is part of why BodyArmor’s overall sodium content falls short for diarrhea recovery.
The Sugar Problem
BodyArmor also contains a significant amount of sugar, with some varieties packing over 20 grams per bottle. During diarrhea, high sugar concentrations can actually make things worse. When there’s too much sugar relative to sodium in your gut, it can draw more water into your intestines rather than helping absorb it. This is the opposite of what you want. Oral rehydration solutions are carefully formulated to keep the sugar-to-sodium ratio in a range that promotes absorption rather than worsening loose stools.
BodyArmor Lyte, the low-calorie version, has less sugar but still carries the same low-sodium limitation.
Better Options for Diarrhea
If you’re mildly dehydrated from a short bout of diarrhea, BodyArmor is better than nothing and better than soda or juice. But if you want something that actually matches what your body is losing, there are more effective choices.
Pedialyte and similar oral rehydration solutions are the gold standard. They’re formulated with the sodium-to-glucose balance that maximizes intestinal water absorption. They taste less appealing than a sports drink, but they work significantly better for illness-related fluid loss. Gatorade and Powerade sit in the middle: not as effective as Pedialyte, but they deliver three to four times the sodium that BodyArmor does.
If BodyArmor is the only thing available or the only thing you can keep down, drink it. Staying hydrated with a less-than-perfect option is always better than not drinking at all. You can also supplement it with salty foods like broth or crackers to make up for the sodium gap. But if you’re choosing what to buy at the store specifically for diarrhea recovery, a dedicated rehydration solution or at minimum a higher-sodium sports drink will do a better job getting fluid back where your body needs it.