Written by Mo, Foundi CSO, PhD · Updated 11 November 2026
Short answer: Partly. Table salt is sodium chloride, so it supplies two electrolytes: sodium and chloride. The other main electrolytes, potassium and magnesium, come mostly from foods like vegetables, beans, dairy, nuts and whole grains. Salt covers some of the picture, but not all of it, and most Canadians already get more sodium than they need.
So the cynical take ("it's just salt water") and the marketing take ("it's so much more") are both half right. Here's how the pieces fit.
What's the difference between salt and sodium?
Salt is a compound. Sodium is one of the two elements in it.
Table salt is sodium chloride, and the American Heart Association notes that it is about 40% sodium and 60% chloride by weight. That's why nutrition labels list sodium rather than salt. The health guidance is about sodium, and sodium also comes from sources other than table salt, such as baking soda and many food additives.
Health Canada puts this in kitchen terms: its suggested daily maximum of 2,300 mg of sodium is the equivalent of just over one teaspoon of salt (Health Canada, Sodium Intake of Canadians in 2017).
Which electrolytes does salt provide?
Two of them: sodium and chloride.
| Electrolyte | From table salt? | Main everyday sources |
|---|---|---|
| Sodium | ✅ Yes | Packaged and restaurant foods, bread, cheese, cured meats, salt |
| Chloride | ✅ Yes | Mostly salt, so it tracks sodium |
| Potassium | ❌ No | Potatoes, beans, lentils, leafy greens, bananas, yogurt |
| Magnesium | ❌ No | Nuts, seeds, whole grains, legumes, leafy greens |
(See Where most of your electrolytes already come from: food.)
Do most people need more salt?
Usually not. Most Canadians already eat more sodium than recommended.
Health Canada recommends that most adults aim for about 1,500 mg of sodium a day and not exceed 2,300 mg. Its most recent national estimate puts the average Canadian intake at about 2,760 mg a day (Health Canada, Sodium Intake of Canadians in 2017). For most people, extra salt isn't filling a gap.
The situations where extra sodium becomes relevant are mostly about large sweat losses: long, hot, very sweaty efforts. Even then, Dietitians of Canada frame it as replacing sodium lost in sweat rather than adding it routinely. (See Do you need electrolytes every day?)
If you've been told to limit sodium for a health reason, follow that advice, and ask your pharmacist or doctor before using any electrolyte product.
So is an electrolyte drink just salt water?
Some are close, and others add more. The label tells you which.
Most electrolyte mixes contain sodium, often as sodium chloride or sodium citrate. Many add potassium, and some add magnesium. They may also contain sugar or a sweetener, flavouring and sometimes vitamins. Whether that's "just salt water" depends on the product, so check two things:
- The Nutrition Facts table: sodium, potassium and sugars per serving.
- The ingredient list: which compounds supply the minerals, and which sweetener is used.
(Step-by-step: How to read an electrolyte label.)
Can you just add salt to water?
You can, and some people do for long, sweaty efforts, but it's easy to overshoot because small amounts of salt contain a lot of sodium.
Going by Health Canada's teaspoon comparison above, even a quarter teaspoon of salt carries several hundred milligrams of sodium. Measure rather than eyeball it, and count it toward your daily total.
Common questions
Is sea salt or pink salt a better source of electrolytes? Not in any meaningful way. The American Heart Association notes that table salt, kosher salt and most sea salts all contain about 40% sodium. The trace minerals in specialty salts are tiny compared with what food supplies.
Are electrolytes the same as minerals? Electrolytes are minerals that carry an electric charge when dissolved in water. All the common electrolytes are minerals, but not every mineral (iron, for example) is discussed as an electrolyte.
Why do labels list sodium instead of salt? Because the health guidance is about sodium, and sodium comes from many sources besides table salt. Canada's Nutrition Facts table lists sodium in milligrams and as a % Daily Value.
Sources
- American Heart Association. Sodium Sources: Where Does All That Sodium Come From? https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/sodium/sodium-sources. Accessed 9 Nov 2026.
- Health Canada. Sodium Intake of Canadians in 2017. https://www.canada.ca/en/health-canada/services/publications/food-nutrition/sodium-intake-canadians-2017.html. Accessed 9 Nov 2026.
- Dietitians of Canada (Unlock Food). Sports Nutrition: Facts on Hydration (updated 30 Jan 2019). https://www.unlockfood.ca/en/Articles/Physical-Activity/Sports-Nutrition-Facts-on-Hydration.aspx. Accessed 9 Nov 2026.
- Health Canada. Nutrition labelling: Nutrition facts table. https://www.canada.ca/en/health-canada/services/food-nutrition/nutrition-labelling/nutrition-facts-tables.html. Accessed 9 Nov 2026.
About Foundi. Foundi is a Canadian everyday-wellness brand. We write these guides to explain everyday health topics in plain language; they aren't medical advice. Brand facts →