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Magnesium & Potassium Aspartate

2 Capsules · 60 servings · $0.23/serving

iHerbAmazon

Best for

Heart

Ingredients (3)

Magnesium

100%

Dose

250 mg

Target

100–400 mg

Form

Budget

Potassium

100%

Dose

99 mg

Target

99–500 mg

Form

Budget

Taurine

10%

Dose

100 mg

Target

1000–3000 mg

Form

—

Other Ingredients (4)

Rice FlourFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Best taken in the evening

The Magnesium in it is what pulls this toward the evening. Take it with food — the potassium in it is what makes this kind of product feel nauseating on an empty stomach.

With food
Space it a couple of hours from Iron and Calcium

On the label

As a dietary supplement, take 2 capsules, 1-2 times daily with or between meals.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$13.54

$10$20$50

Cheaper than 81% of 579 magnesium supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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