NOW Foods Potassium Citrate Pure Powder Review

Potassium Citrate Powder from NOW Supplements is listed as a Pure Powder that supports electrolyte balance and normal pH, and supports proper muscular contraction. The page explains that potassium is an essential mineral widely distributed among food sources, with especially high levels present in fruits and vegetables. Potassium is described as critical for the maintenance of normal whole-body and cellular fluid levels, as well as for the maintenance of acid-base balance. It is also described as necessary for proper muscle contraction, the maintenance of healthy heart function, and for the transmission of nerve impulses. The page states that potassium citrate is a well absorbed and highly bioavailable form of potassium. Each 1/4 level teaspoon serving, approximately 1.4 g, provides 448 mg of elemental potassium from 1,400 mg of potassium citrate, which is 10% of the daily value. The suggested usage is to take 1/4 level teaspoon 1 to 2 times daily in separate servings, taken with food and at least 8 oz. of water or other beverage, and not to exceed 2 servings per day. The product is sold in a 12 oz. bottle containing about 243 servings and is listed under SKU 1446. The page notes that natural color variation may occur, and that the product is sold by weight not volume. Other ingredients are listed as none. The product is described as not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients, though it is produced in a GMP facility that processes other ingredients containing these allergens. Certifications shown on the page include Intertek GMP Supplement Certification, Non-GMO, Vegan, and Kosher (Triangle K), and the product is labeled Gluten Free, Made w/o Dairy, Made w/o Eggs, Made w/o Soy, and Made w/o Nuts. The page says it is packaged and quality tested in the USA and that the company is family owned since 1968. Caution text advises that the product is for adults only, and that adults should consult a physician if pregnant or nursing, taking any medications especially those that may affect kidney function or blood potassium levels, or having a medical condition especially heart or kidney condition or diabetes. The product should be kept out of reach of children and stored in a cool, dry place after opening. The page also includes the standard disclaimer that these statements have not been evaluated by the Food and Drug Administration and that the products are not intended to diagnose, treat, cure or prevent any disease.

Product Focus: Blood PressureAlso covers:HeartKidneys
Tier ⓘ
Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$5
Study, Trial or Testing Result SummaryMembersHuman studies

Potassium has evidence for blood pressure, mainly in people who already have blood pressure. A review of 26 trials with about 35,000 adults found that swapping regular salt for a -sodium, potassium-enriched salt the top blood pressure number by about 4.8 points and the bottom number by about 2.4 points. …

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Review Totals and SummaryMembers10,627 reviews
10,627 reviews · IHerb 10,483 · Walmart 106 · PureFormulas 15 · Swanson Vitamins 7 · NOW Foods website 4 · Smith's Food and Drug 3 · King Soopers 3 · Smithsfoodanddrug 3 · Frysfood 3

NOW Foods Potassium Citrate Pure Powder has garnered attention across stores, with about 10621 ratings in total. A of customers, , give it 4 or 5 stars. …

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Biohacker SummaryMembersWhat our biohacker panel says

of the panel or uses potassium, and ten spoke about it. The common reasons are blood pressure, getting the balance with sodium right, hydration, and filling gaps on a fast or when depleted. …

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RAL SummaryMembersThe tier and why

Three reviews, the biggest covering about 35,000 adults, show potassium blood pressure, especially in people with blood pressure. The daily amount here appears to be some studied doses, and trials used potassium-enriched salt rather than a powder.

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More DetailsMembersBody systems · Combine with · Possible side effects

Body systems: Cardiovascular system, Kidneys and urinary system. Combine with and possible side are for members.

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Supplement FactsPotassium 448 mg
Supplement Facts
Serving Size 1/4 Level Teaspoon (approx. 1.4 g)
Servings Per Container about 243
Amount Per Serving% Daily Value
Potassium (elemental) (from 1,400 mg Potassium Citrate)448 mg10%

Other ingredients: None.

Directions: Take 1/4 level teaspoon 1 to 2 times daily in separate servings. Take with food and at least 8 oz. of water or other beverage. Do not exceed 2 servings per day.

Label source: Nowfoods · Report a label change

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Graded October 24, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.