Best Salt Tabs for Runners of 2026

Two hundred and fifteen milligrams of sodium, 63 mg of potassium, 22 mg of calcium, and 11 mg of magnesium — that's one SaltStick capsule, and it's a moderate dose next to the high-sodium options here. What separates it is the shape of the formula: a sweat-replacement spread in a small, tasteless capsule rather than one big salt hit. Nothing in it is there to be tasted, which matters more than it sounds when you're taking one every 30 to 60 minutes.

We judged these on the hardest part of taking salt tabs, which is getting one down late in a run without breaking stride or coughing. A mouthful from a soft flask is enough, there's no aftertaste to manage, and we noticed no churn in the stomach even deep into a long effort. Sugar-free and calorie-free, they sit alongside a gel or a chews plan instead of competing with it, and the one-per-30-to-60-minutes rhythm is easy to hold to because there's no counting or mixing involved.

The arithmetic is what to check before you commit. A 100-count bottle works out somewhere between 50 and 100 hours of running depending on how often you dose, so a heavy summer block empties it faster than the calendar suggests, and a very salty sweater on a hot three-hour run may want more sodium than one capsule an hour provides. That's the case for the Vitassium option below rather than a fault in these.

One habit we picked up: take the first capsule at the start line rather than at the first water stop. The label's window starts at 30 minutes, and getting ahead of your losses is easier than chasing them once you're already dried out.

The bottle is the smallest in this roundup — not quite four inches tall — and that's most of the case for it. Fifty capsules will disappear into the smallest pocket of a vest, which is simply not true of a 100-count bottle, and on race morning that difference is the whole point.

The formula is the other half of the argument: 125 mg of chloride, 9 mg of magnesium, 75 IU of vitamin D, and 1 mg of B6 alongside the sodium. That's a broader pill than the plain salt tablets, and the magnesium is a useful passenger if it's a mineral you pay attention to.

We found the one-to-two-capsules-per-hour instruction the easiest dosing in the set to hold onto mid-race; one at each aid station is roughly right for a hot half. What you give up is sodium density. At 140 mg a capsule it's the lightest of the capsules here, so a heavy sweater needs more pills per hour than the top pick requires.

A capsule needs water, and there are races where you don't want to stop at an aid station or carry a bottle through the last 5K. FastChews solve that specific problem: 60 orange tablets in a bottle small enough for a vest pocket, chewed rather than swallowed, with no mixing and no liquid required.

They're also the answer if you dislike pills. The orange is tart and mild rather than salty, the texture is firm rather than gummy, and it stays palatable when everything else in your pocket has gone sticky and warm. They're low-calorie, so they don't disturb a carb plan you've already worked out.

Where we rate them highest is dry, hot efforts — a summer half where you take water at the stations but don't want to carry it, or a long hike where the bottle empties before the trail does. They're also the easiest way to get electrolytes into a runner who gags on capsules, because there's no technique to learn. Just don't build a whole season's plan around a 60-tablet bottle.

Two Vitassium capsules carry 500 mg of sodium and 100 mg of potassium, which is the largest sodium dose per pill in this set and more than the SaltStick default delivers. It was formulated with POTS patients and high-sodium diets in mind, so the whole design assumes you need a lot of salt and not much else alongside it.

Taking them is uneventful in exactly the way you want. There's no taste, no smell, and nothing that repeats on you afterwards, and we had no queasiness even when a dose landed away from a meal. The formula is deliberately narrow — sodium and potassium, nothing else — which is either precisely right or a little thin depending on what else you're eating and drinking on the run.

We see this as the step-up bottle rather than the everyday one. If you're a heavy, salty sweater, or you race in real heat, the extra sodium per capsule means fewer pills to carry and less water spent chasing each one. If you want calcium and magnesium in the same swallow, the SaltStick capsule covers more ground. Because it's sold as a medical food for prescribed high-sodium diets, it's also the one here to run past a clinician if you take blood pressure medication.

Each tablet is 1,000 mg of sodium chloride, which works out to about 393 mg of elemental sodium — more than either of the multi-electrolyte capsules above, for a fraction of what they cost per dose. Three hundred and sixty-five tablets in the bottle makes this roughly a year's supply for most people, and it's what we point to when someone asks how cheaply salt tabs can be done.

We rate it for the runner who has the rest of the picture handled: a carb drink, real food, a banana, and simply wants sodium on top without paying for a formula. It is what it says — salt in a pill. That means no potassium, magnesium, or calcium, and it's unbuffered, so it lands harder than a buffered capsule if you take it dry or on an empty stomach. A full bottle of water and something in your stomach fixes that.

The tablets are large, and a pill splitter is the practical answer if you don't want the full gram. Treat the bottle as a cabinet supply rather than a pocket one and decant a few into a bag for race day.

Fifty foil packs of two film-coated tablets, unflavored, and small enough to live in a purse, a glovebox, or a gym bag. The packaging is the most practical thing about Medi-Lyte — you can drop two tablets in a shorts pocket and forget about them until you need them.

What's actually in them is 40 mg of potassium, 12 mg of magnesium, and 10.64 mg of calcium per tablet, with no sugar and no artificial flavors. That's a mineral tablet aimed at cramping and heat stress rather than at sweat replacement, and it's the cheapest way in this set to add the two minerals most salt tabs leave out.

Here's the catch, and it's a big one: there is no sodium in these at all. If your problem is a salty sweat rate on a three-hour summer run, this isn't the tablet, because it can't replace what you're losing. If you already drink a sodium mix or eat salty food and still get cramps, the potassium and magnesium are the piece you've been missing.

We keep them in the roundup because they're inexpensive, they travel better than any bottle here, and they cover the minerals the rest of the category skips. Take them with water and something in your stomach, and pair them with a sodium source rather than instead of one.

One hundred and twenty capsules, one per serving, eight electrolytes plus vitamins — on paper this is the widest formula here and among the cheapest per serving, and that combination is why we treat it as an everyday bottle rather than a race-day one.

In use it's unremarkable in a good way: a capsule that swallows easily with no aftertaste, and a formula that covers the minerals a lot of runners ignore until they cramp at 9 p.m. on the sofa. It's the sort of bottle that lives in a gym bag rather than a vest.

Two things to check before you commit. The potassium is on the low side for a formula this broad, so it isn't the bottle to buy if potassium is what you're chasing, and it isn't going to match the high-sodium capsules above for a hot marathon either. For general hydration and everyday electrolyte cover, it earns its place.

One hundred and twenty vegetarian capsules, zero carbs, no sugar, no artificial flavors or preservatives, and Himalayan pink salt as the sodium source. VALI's pitch is transparency, and the label backs it up: there's very little in the bottle that isn't a mineral.

We liked how little attention they ask for. There's no taste and no aftertaste, they swallow easily, and they sit gently enough to take before a run rather than only after one. Nothing about the experience reminds you that you're supplementing, which is the point of a capsule over a chew or a mix.

The count is generous, but 120 capsules arrive in a single bottle about five inches tall, so the practical move is to decant a handful into a small bag for race day and leave the rest at home. That's a habit worth forming with any bottle this size.

Where it lands for us: a solid, clean capsule for daily and moderate-effort running, and a good choice if you already eat a salty diet and want electrolyte cover rather than a big sodium hit. If you're chasing a hard sweat rate in summer heat, the higher-sodium capsules above do more per pill.