Potassium
citrate
Potassium works with sodium to keep fluid balanced in and around your cells.* PSN Electrolytes has 300 mg of potassium per serving, as potassium citrate, three times the 99 mg most potassium supplements stop at, in a form that tastes clean in a drink you take around training.
Reviewed by Dr. Leandro Cordova, PhD, Formulation Scientist · Last reviewed November 5, 2026
At a glance
- In PSN Electrolytes
- 300 mg per serving
- Form
- Potassium citrate
- % Daily Value
- 6% (of 4,700 mg)
- Typical potassium pill
- 99 mg or less
- Found in
- Electrolytes · Stack · Power Stack
Why we use potassium citrate
A form chosen for taste and for a drink you take around training.
Potassium citrate
What PSN uses
Clean taste in a drink, and citrate is one of the forms of potassium found naturally in fruits and vegetables.
Potassium chloride
The most common form in supplements and salt substitutes, but it tastes bitter and metallic in a drink. We already get chloride from the salt.
Absorption
The body absorbs about 85–90% of potassium across common forms, so we don’t claim citrate absorbs better. We chose it for taste.
Why 300 mg per serving
More than a typical pill, sized to sit alongside 750 mg of sodium.
- 300 mg
Per PSN serving
Covers what you lose in a hard session’s sweat and adds to what you get from food.
- ~150–300 mg
Lost per liter of sweat
Far less than sodium, which is why sodium leads the formula.
- 99 mg
Typical potassium pill
Most potassium supplements stop here. Why we chose more.
- 6%
Of the daily value
The daily value for potassium is 4,700 mg. Food is still your main source.
What to know
Works with sodium*
Sodium holds water outside your cells and potassium holds it inside. Together they support normal fluid balance and muscle and nerve function.*
Clearly stated dose
The label lists the elemental potassium amount, 300 mg, not just the weight of the compound.
Food still comes first
Most adults eat less potassium than recommended. Fruits, vegetables, potatoes, beans and dairy are the best sources; this tops them up around training.
No cramp or blood pressure claims
Research on electrolytes and cramps is mixed, and PSN Electrolytes is a high-sodium training drink, not a blood pressure product. We don’t claim either.
Who should check first
Healthy kidneys clear extra potassium easily. Check with your healthcare provider first if any of these apply.
Kidney disease
Talk to your healthcare provider first.
Blood pressure or heart medications
ACE inhibitors (like lisinopril), ARBs (like losartan) and potassium-sparing diuretics (like spironolactone) can raise potassium levels. Ask your doctor or pharmacist first.
Salt substitutes or other potassium supplements
Count those too, since many salt substitutes are potassium chloride.
Heart condition, type 1 diabetes or adrenal insufficiency
Talk to your healthcare provider first.
Quick answers about potassium
How much potassium is in PSN Electrolytes?
300 mg per serving, about 6% of the daily value.
Why do most potassium supplements have only 99 mg?
FDA requires a warning on some potassium salt tablets above 99 mg, because concentrated tablets were linked to small-bowel irritation. That rule is about tablets; PSN Electrolytes is a powder dissolved in 12–16 oz of water.
Why citrate instead of potassium chloride?
Taste. Chloride is bitter and metallic in a drink, and we already get chloride from the salt. Both forms are well absorbed.
Why is there more sodium than potassium?
You lose far more sodium than potassium in sweat, roughly 1 g of sodium versus about 150–300 mg of potassium per liter.
Is there an upper limit for potassium?
No upper limit has been set for healthy adults, because healthy kidneys clear the extra. People with kidney disease or on certain medications are the exception; see Who should check first.
Research we relied on
Where you'll find it at PSN: PSN Electrolytes, the Performance & Hydration Stack and the Power Stack (coming soon).
Visual guide: The Journey of Hydration (with a free PDF).
NIH Office of Dietary Supplements
Potassium: fact sheet for health professionals (daily value, adequate intakes, no upper limit, 99 mg supplement limit, absorption, medication interactions). ods.od.nih.gov
National Academies, 2019
Dietary Reference Intakes for Sodium and Potassium. Washington, DC: The National Academies Press. doi:10.17226/25353
Baker, 2017
Sweating rate and sweat sodium concentration in athletes: a review of methodology and intra/interindividual variability. Sports Med 47(Suppl 1):111–128. doi:10.1007/s40279-017-0691-5
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.