How does DoseRank decide what ranks #1?

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.

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.

DOSERANKEVIDENCE-BASED SUPPLEMENTS

Reduce muscle cramps

DOSERANKEVIDENCE-BASED SUPPLEMENTS

Best Supplements for Muscle cramps — 5442 Ranked | DOSERANK

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

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

Source Naturals$0.27 / serving4.8 · 15,239Available 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 425 mg is higher than the studied 200-400 mg window.
Price / serving$0.27 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

425 mgAbove rangehigher than the studied 200-400 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

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

Nature's LifeClinical89Dose fit90Popularity76$0.20/ serving

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

Seeking HealthClinical89Dose fit91Popularity89$0.22/ serving

Source Naturals, Magnesium Malate, 180 Tablets

Source NaturalsClinical89Dose fit90Popularity84$0.28/ 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 fit90Popularity98$0.35/ serving

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

KALClinical88Dose fit73Popularity98$0.25/ serving

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

NutricostClinical89Dose fit90Popularity76$0.15/ serving

Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules

Micro IngredientsClinical89Dose fit90Popularity91$0.22/ serving

Nutricost, Magnesium Malate, 180 Capsules (700 mg per Capsule)

NutricostClinical89Dose fit90Popularity84$0.24/ serving

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

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

Source Naturals$0.27 / serving4.8 · 15,239Available 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 425 mg is higher than the studied 200-400 mg window.
Price / serving$0.27 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

425 mgAbove rangehigher than the studied 200-400 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

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

Nature's LifeClinical89Dose fit90Popularity76$0.20/ serving

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

Seeking HealthClinical89Dose fit91Popularity89$0.22/ serving

Source Naturals, Magnesium Malate, 180 Tablets

Source NaturalsClinical89Dose fit90Popularity84$0.28/ 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 fit90Popularity98$0.35/ serving

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

KALClinical88Dose fit73Popularity98$0.25/ serving

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

NutricostClinical89Dose fit90Popularity76$0.15/ serving

Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules

Micro IngredientsClinical89Dose fit90Popularity91$0.22/ serving

Nutricost, Magnesium Malate, 180 Capsules (700 mg per Capsule)

NutricostClinical89Dose fit90Popularity84$0.24/ serving

Reduce muscle cramps

Reduce muscle cramps

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

Minerals & Trace Elements

Amino Acids & Derivatives

Electrolytes

Best products for muscle cramps

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

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

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

Source Naturals, Magnesium Malate, 180 Tablets

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

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

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

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

Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules

Nutricost, Magnesium Malate, 180 Capsules (700 mg per Capsule)

What every metric means

Compare the top 3, side by side

Not sure which is right for you?

Get a personal report

Frequently asked

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

Minerals & Trace Elements

Amino Acids & Derivatives

Electrolytes

Compare the top 3, side by side

Best products for muscle cramps

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

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

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

Source Naturals, Magnesium Malate, 180 Tablets

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

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

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

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

Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules

Nutricost, Magnesium Malate, 180 Capsules (700 mg per Capsule)

Reduce muscle cramps

Reduce muscle cramps

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

Minerals & Trace Elements

Amino Acids & Derivatives

Electrolytes

Best products for muscle cramps

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

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

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

Source Naturals, Magnesium Malate, 180 Tablets

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

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

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

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

Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules

Nutricost, Magnesium Malate, 180 Capsules (700 mg per Capsule)

What every metric means

Compare the top 3, side by side

Not sure which is right for you?

Get a personal report

Frequently asked

Related outcomes

Related outcomes

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

Minerals & Trace Elements

Amino Acids & Derivatives

Electrolytes

Compare the top 3, side by side

Best products for muscle cramps

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

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

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

Source Naturals, Magnesium Malate, 180 Tablets

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

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

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

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

Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules

Nutricost, Magnesium Malate, 180 Capsules (700 mg per Capsule)