Oct 6, 2026 ·
By the Pawer Water team. Reviewed by Nathalie Ohana, Head of Product & Innovation. Updated October 2026.
Quick answer: No. Human electrolyte drinks are dosed for adult humans who sweat. For a dog, that dose is far too strong, and some drinks also contain sweeteners that are dangerous for dogs. If your pup needs a hydration boost, choose a product made for dogs.
You've just finished a long walk. You're sipping your electrolyte drink, and a pair of big brown eyes is staring at your bottle. Sharing feels like the kind thing to do. But when it comes to electrolytes, the kindest thing is to keep your drink to yourself.
It's all about the dose.
Electrolytes aren't bad for dogs. Sodium, potassium and magnesium are essential for every body, human or canine. The problem is how much, and for whom.
Human electrolyte drinks are made for a fully grown adult, often one who's been sweating hard. One stick of LMNT contains 1,000mg of sodium. A stick of Liquid I.V. contains around 500mg. Now think about size. A 10kg dog is about a seventh of the weight of a 70kg adult. So one LMNT stick for that dog is roughly like you drinking seven at once. That's around 7,000mg of sodium, nearly three times the NHS daily maximum for an adult.
There's another twist: dogs barely sweat. According to the American Kennel Club, they only sweat a little through their paw pads and cool down mainly by panting. So they don't lose salt the way we do after a workout. And a complete dog food already provides more than the minimum sodium a dog needs. That said, dogs can still lose electrolytes on hot days, after long walks or during a tummy upset. That's when a top-up made for dogs, at a dog-sized dose, can really help.
Watch out for hidden extras
Many human drinks are also packed with sugar and flavourings that can upset a dog's tummy.
The big one to know is xylitol, a sweetener sometimes labelled as birch sugar or wood sugar. It's found in some sugar-free products, supplements and flavoured rehydration drinks. The US Food and Drug Administration warns it's toxic to dogs and can cause a dangerous drop in blood sugar, seizures and liver failure, with signs starting within 20 minutes. If your dog swallows anything containing xylitol, call your vet straight away.
Think of it like baby products
Children need vitamins too. The NHS recommends daily vitamins A, C and D for all children aged 6 months to 5 years. But nobody hands a toddler an adult multivitamin.
Instead, children get drops and supplements specifically formulated for them, at a child-sized dose. And that's why baby paracetamol, baby formula and baby rehydration products all exist.
Dogs deserve the same thinking. Same nutrients, different body, so they need a different formula and a different dose.
What to give your dog instead
- Fresh water, everyday. For most dogs on most days, a clean, full bowl is all they need.
- A hydration boost made for dogs. After long walks, hot days or busy weeks, a dog-specific electrolyte can help. Pawer Water is one example. It's a 4.5g powder stick you stir into your dog's water bowl, formulated with a certified canine nutritionist. It's dosed for dogs, every breed, and combines electrolytes with human-grade ingredients like collagen, vitamins and antioxidants.
- Your vet, if something's not right. If your dog is vomiting, has diarrhoea or seems dehydrated, call your vet before reaching for any drink.
FAQs
My dog drank some of my electrolyte drink. What should I do?
Check the label for xylitol or birch sugar first. If it's there, call your vet immediately. If not, a small sip is unlikely to cause harm, but watch for tummy upset, unusual thirst or tiredness, and call your vet if you're worried, especially with small dogs.
How do I know if my dog is dehydrated?
The American Kennel Club suggests two quick checks. First, gently lift the skin between your dog's shoulder blades and let go: it should spring straight back. Second, feel their gums: they should be moist, not dry or sticky. Try both when your dog is well hydrated, so you know what's normal for them. If your dog is also lethargic, vomiting or refusing to drink, call your vet.
Sources