Vitassium, made by SaltStick, is a salt capsule: 500mg sodium and 100mg potassium per two-capsule serving, no flavor, no sweetener, nothing to mix. LMNT is a flavored powder: 1,000mg sodium, 200mg potassium, and 60mg magnesium per stick.
The short answer: Vitassium is one of the cheapest ways to buy sodium in our 17-brand comparison at $1.00 per gram, against LMNT's $1.50. It is also the only option that removes taste from the equation entirely, which is the real reason people with POTS switch to capsules. LMNT gives you a full dose in one serving, adds magnesium, and brings the fluid along with the sodium.
Vitassium vs LMNT: The Numbers
| Metric | Vitassium | LMNT | NormaLyte |
|---|---|---|---|
| Sodium | 500mg (2 caps) | 1,000mg | 862mg |
| Potassium | 100mg | 200mg | 393mg |
| Magnesium | 0mg | 60mg | 0mg |
| Sugar | 0g | 0g | 6.75g |
| Sweetener | None | Stevia | Dextrose |
| Flavor | None | Multiple | Multiple |
| Price/serving | $0.50 | $1.50 | $1.33 |
| $/g sodium | $1.00 | $1.50 | $1.54 |
| Servings/container | 50 (100 caps) | 30 | 30 |
| Form | Capsules | Stick pack | Stick pack |
Data verified against manufacturer websites. Prices as of August 2026. See the full 17-brand comparison →
Vitassium's ingredient list is four items: sodium chloride, potassium citrate, vegetarian stearic acid, and a vegetable capsule. There is nothing to taste because there is nothing in it to flavor.
The Case for Capsules: No Taste, No Drink
The strongest argument for Vitassium has nothing to do with the numbers. If your sodium target is high and you're hitting it every day indefinitely, flavor fatigue becomes a genuine adherence problem. Several litres of salty stevia-sweetened liquid a day is tolerable for a week and grim for a year.
Capsules sidestep that completely. They also let you titrate precisely, taking one or two at a time as symptoms warrant rather than committing to a whole drink. The manufacturer's guidance is one to two capsules with 500mL of water, three to four times daily, to a maximum of ten capsules per day.
Portability is the other practical win. Capsules go in a pocket and need no water bottle, no measuring, and no cleanup.
The Case Against Capsules
They provide no fluid. This is the one people underestimate. Sodium and volume work together, and a capsule delivers only the sodium. You still have to drink the water separately and actually remember to do it. A powder makes the fluid unavoidable, which for some people is the entire benefit.
No magnesium, minimal potassium. Vitassium contains no magnesium and 100mg of potassium, the lowest of the three products above. Against an adequate intake of 3,400mg for adult men and 2,600mg for adult women,[1] that's negligible.
Pill burden. Reaching 2,500mg of sodium means ten capsules across the day. If you already take multiple daily medications, that's a real addition rather than a trivial one.
Are Salt Tablets Good for POTS?
Increased sodium intake is a standard non-pharmacological measure in POTS, with the goal of expanding plasma volume. The 2019 NIH expert consensus covers dietary sodium among first-line approaches,[2] a randomized study found high dietary sodium lowered standing heart rate and improved symptoms versus low sodium,[3] and reviews of salt supplementation in orthostatic intolerance reach compatible conclusions.[4]
What the literature does not do is establish that capsules outperform dietary salt or salty drinks. The delivery format is a matter of tolerability and adherence, not superior physiology. Choose the one you'll actually keep using.
Sodium loading is also not universally appropriate. Hypertension, heart failure, and kidney disease all change the calculation,[5] which is why the target belongs to your physician rather than to a product label.
Is Vitassium the Same as SaltStick?
Same company, different products, and the confusion is understandable. SaltStick makes electrolyte capsules aimed at endurance athletes. Vitassium is SaltStick's line built for people managing chronic conditions, and it's positioned around dysautonomia, POTS, vasovagal syncope, and orthostatic hypotension rather than around race day.
The practical difference is the formula's focus. Vitassium concentrates on sodium and potassium at doses meant to be taken repeatedly through an ordinary day, rather than a broader mineral profile timed around exercise. If you're shopping for POTS, Vitassium is the line to look at.
How Many Vitassium Capsules Per Day?
The manufacturer's stated ceiling is ten capsules daily, which is 2,500mg of sodium and 500mg of potassium. Guidance is one to two capsules with 500mL of water, three to four times a day.
That ceiling matters for planning. If your sodium target sits above 2,500mg, Vitassium alone won't get you there and you'll be combining it with salted food, a powder, or both. This is a real limitation compared with powders, where two or three servings can cover a much higher target.
Spacing also matters more than with a drink. Ten capsules in two sittings is a large sodium bolus and a common cause of the stomach upset people blame on the product. Spreading them across three or four intervals, each with a full glass of water, is what the dosing guidance is actually for.
Cost: Vitassium Is the Cheaper Sodium
At $1.00 per gram of sodium, Vitassium sits third-cheapest in our 17-brand set, behind only Hydrate Pro ($0.78) and Redmond Re-Lyte's tub ($0.95). Both of those are powders, so among capsules Vitassium is the value leader outright.
Run it at a realistic daily target. Reaching 3,000mg of sodium takes six Vitassium servings at $3.00, or three LMNT packets at $4.50. Over a month that's roughly $90 against $135, a $45 gap for the same sodium. Our ranking of 17 brands by cost per gram of sodium puts both in the full field, and the powder vs tablets vs capsules comparison covers the format tradeoff more broadly.
Which Should You Choose
- Vitassium if you're sick of drinking salty liquid, need to dose in small increments through the day, want the lowest cost per gram of sodium in capsule form, or need something pocketable.
- LMNT if you want your fluid and sodium in one step, want magnesium included, prefer one serving to six, or simply won't remember to drink water alongside a pill.
- Both is reasonable and common: powder at home where drinking is easy, capsules for work, travel, and days when nothing salty sounds bearable.
The verdict: Vitassium wins on cost and on tolerability, and those two things drive long-term adherence more than any mineral panel. Its weakness is that it delivers sodium without fluid, and it leaves out magnesium entirely. If you're disciplined about drinking water, Vitassium is the cheaper and more sustainable way to hit a high sodium target. If you aren't, the powder does that work for you.
This article is educational and not medical advice. POTS and dysautonomia management should be directed by your physician. Do not make large changes to your sodium intake without talking to them first.
References
- National Institutes of Health, Office of Dietary Supplements. "Potassium: Fact Sheet for Health Professionals." NIH ODS. ods.od.nih.gov
- Vernino S, Bourne KM, Stiles LE, et al. "Postural orthostatic tachycardia syndrome (POTS): State of the science and clinical care from a 2019 National Institutes of Health Expert Consensus Meeting - Part 1." Autonomic Neuroscience, 2021; 235:102828. pubmed.ncbi.nlm.nih.gov
- Garland EM, Gamboa A, Nwazue VC, et al. "Effect of High Dietary Sodium Intake in Patients With Postural Tachycardia Syndrome." Journal of the American College of Cardiology, 2021; 77(17):2174-2184. pubmed.ncbi.nlm.nih.gov
- Williams EL, Raj SR, Schondorf R, et al. "Salt supplementation in the management of orthostatic intolerance: Vasovagal syncope and postural orthostatic tachycardia syndrome." Autonomic Neuroscience, 2022; 237:102906. pubmed.ncbi.nlm.nih.gov
- Stock JM, Chelimsky G, Edwards DG, Farquhar WB. "Dietary sodium and health: how much is too much for those with orthostatic disorders?" Autonomic Neuroscience, 2022; 238:102947. pmc.ncbi.nlm.nih.gov