Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Reduce muscle cramps

What this outcome means

Muscle cramps are sudden, involuntary contractions that seize a muscle and can stop you mid-stride until they ease. On DoseRank it maps to a defined health outcome built from human studies on cramp frequency, episode duration, and pain intensity scores – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Nighttime leg crampsCalf or foot spasms that jolt you awake in the dark.

Exercise-inducedMuscles that lock up during or after hard training.

Pregnancy-relatedLeg cramps that grow more common later in pregnancy.

Stack buildersAlready taking supplements such as Magnesium Malate and want the dose right.

Evidence level

78Moderate-strong

Magnesium Malate – has moderate public evidence for this outcome. This usually means there are smaller or mechanistic studies, but not randomized human trials. A DoseFit Score of 90 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best available ingredients

Magnesium Malate is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 90

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Magnesium Malate 400 mg vs 200-400 mg.

Processed

5.1k

Available

5.1k

Ingredients

Brands

478

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

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Get a personal report

A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Reduce muscle cramps

What this outcome means

Who it's for

Nighttime leg crampsCalf or foot spasms that jolt you awake in the dark.

Exercise-inducedMuscles that lock up during or after hard training.

Pregnancy-relatedLeg cramps that grow more common later in pregnancy.

Stack buildersAlready taking supplements such as Magnesium Malate and want the dose right.

Evidence level

78Moderate-strong

Best available ingredients

Magnesium Malate is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 90

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Magnesium Malate 400 mg vs 200-400 mg.

Processed

5.1k

Available

5.1k

Ingredients

Brands

478

Coverage

100%

Relevant ingredients

Which ingredient types matter for muscle crampsOpen to see which ingredient types matter for muscle cramps

4.3k products across 3 ingredient types — open to filter the ranking.

Use types to filter ranked products

Minerals & Trace Elements

3.7k products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical: , , , ...

Amino Acids & Derivatives

325 products

The building blocks of protein, taken singly for targeted effects – leucine for muscle, theanine for calm. Free-form versions absorb fast on an empty stomach.

Typical:

Electrolytes

263 products

Charged minerals – sodium, potassium, magnesium – that drive hydration and nerve signaling. Balance between them matters more than loading any single one.

Top decision cards

Best products for muscle cramps

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for muscle cramps

Nature's Life, Renewing Magnesium Malate, 250 Tablets (200 mg per Tablet)

Nature's Life$0.20 / serving4.8 · 6,162Available now

Also helps with

Magnesium status

Blood pressure

Why this ranks here

Evidence fitMagnesium Malate has moderate human evidence for this outcome.
Dose fitMagnesium Malate at 400 mg lands inside the studied 200-400 mg window.
Price / serving$0.20 per serving — mid price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

The numbers

400 mgIn rangeinside the studied 200-400 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Source Naturals, Magnesium Malate, 360 Tablets (1,250 mg per Tablet)

Source NaturalsClinical89Dose fit90Popularity87$0.27/ serving

Seeking Health, Magnesium Malate Powder, 8.82 oz (250 g)

Seeking HealthClinical89Dose fit91Popularity87$0.23/ serving

NOW Foods, Magnesium Bisglycinate Powder, 8 oz (227 g)

NOW FoodsClinical88Dose fit71Popularity98$0.18/ serving

KAL, Magnesium Malate 400, 90 Tablets (200 mg per Tablet)

KALClinical89Dose fit90Popularity97$0.36/ serving

KAL, Chelated Magnesium Bisglycinate, 180 Tablets (105 mg per Tablet)

KALClinical88Dose fit73Popularity97$0.25/ serving

Nutricost, Magnesium Malate, Unflavored, 10.7 oz (300 g)

NutricostClinical89Dose fit90Popularity77$0.15/ serving

Vitamatic, Magnesium Taurate with B6, 180 Vegetarian Capsules

VitamaticClinical89Dose fit78Popularity87$0.21/ serving

Source Naturals, Magnesium Malate, 180 Tablets

Source NaturalsClinical89Dose fit90Popularity81$0.31/ serving

Micro Ingredients, Magnesium Glycinate, 240 Vegetarian Capsules (175 mg per Capsule)

Micro IngredientsClinical88Dose fit82Popularity90$0.15/ serving