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Klean Athlete Klean Magnesium (90 Vegetarian Capsules)

by Klean Athlete

SuppCheckr Score81/100

SuppCheckr score uses the magnesium scoring profile (Phase 4D-3). Key drivers: NSF Certified for Sport verification, clear glycinate form and 120 mg elemental magnesium per capsule, and simple capsule formula — offset by higher price per 100 mg elemental magnesium and lower per-capsule dose than some alternatives. Scores reflect label clarity and NSF listing documentation, not personal medical suitability.

Last updated: 2026-06-30 · Last reviewed: 2026-06-30

Explore magnesium content

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Product photo not provided — review is based on label facts and cited sources.

Supplement facts & pricing context

Serving size
1 vegetarian capsule
Servings per container
90
Elemental magnesium per serving
Magnesium (as magnesium glycinate): 120 mg
Manual observed price
$26.50 (2026-06-26)
Manual price per serving
$0.29
Price per 100 mg elemental magnesium
$0.24Normalized because this label serving is not exactly 100 mg elemental magnesium.

Active ingredient

  • Magnesium (as magnesium glycinate): 120 mg

Other ingredients

Hypromellose (vegetarian capsule), Rice flour, Magnesium stearate

Allergens

Not stated on available label

Manual dated prices only — not live retailer prices. Check current price at the retailer before buying.

Score breakdown

Ingredient transparency90
Dose transparency85
Evidence alignment82
Formula quality/simplicity92
Third-party testing/certifications95
Price/value30
Additives/fillers/sweeteners88
Label clarity90
Brand transparency85

Pros

  • Third-party tested — NSF Certified for Sport listing captured for this SKU (90 vegetarian capsules, 1-capsule serving).
  • Supplement Facts on the brand page list magnesium as magnesium glycinate with 120 mg elemental magnesium per capsule.
  • Single primary magnesium form on the label; capsule count and serving size are straightforward.

Cons

  • Higher observed price per 100 mg elemental magnesium than budget citrate or oxide options in this five-product comparison set.
  • 120 mg elemental magnesium per capsule is a lower per-serving dose than some glycinate products that list 200 mg per serving.
  • Brand marketing includes athlete and wellness positioning — SuppCheckr does not mirror sleep, anxiety, or recovery outcome claims.

Label clarity notes

Locked SKU KA202599-90 / UPC 310539035521 — 90 vegetarian capsules. Brand product page Supplement Facts list 120 mg magnesium (elemental) as magnesium glycinate per 1-capsule serving and 90 servings per container. Label directions allow 1–4 capsules daily; SuppCheckr price math uses the 1-capsule serving size shown on Supplement Facts.

May fit if you want

  • Buyers who prioritize a glycinate-form label with a verifiable NSF Certified for Sport listing for this SKU.

May not fit if

  • You need the lowest price per 100 mg elemental magnesium in this cluster.
  • You require a higher elemental magnesium amount per single-capsule serving without taking additional capsules.

Check current price at retailer

Manual price $26.50 observed on 2026-06-26. Prices change — verify at the retailer.

Check current price at retailer

Direct retailer link — not an affiliate link.

Compare in this category

Sorted by SuppCheckr score by default — not a personal recommendation.

ProductBrandScorePrice / 100 mg elementalPrice / servingTesting
Klean Athlete Klean Magnesium (90 Vegetarian Capsules)
  • third-party tested
  • glycinate form
  • clear elemental mg
Klean Athlete
SuppCheckr Score81/100
$0.24$0.29Verified
Nutricost Magnesium Citrate Capsules (120 Capsules)
  • citrate form
  • clear elemental mg
  • lower price per 100 mg elemental
Nutricost
SuppCheckr Score79/100
$0.11$0.47Claimed
NOW Magnesium Malate 1000 mg Tablets (180 Tablets, SKU 1300)
  • malate form
  • compound + elemental disclosed
  • one-tablet serving
NOW Foods
SuppCheckr Score78/100
$0.13$0.14Unknown
Nature Made Magnesium Oxide 250 mg Tablets (100 Tablets)
  • oxide form
  • clear elemental mg
  • lower price per 100 mg elemental
Nature Made
SuppCheckr Score77/100
$0.02$0.04Unknown
Pure Encapsulations Magnesium (Citrate/Malate) (180 Capsules)
  • mixed citrate/malate form
  • one-capsule serving
  • clear total elemental mg
Pure Encapsulations
SuppCheckr Score71/100
$0.17$0.20Unknown

Manual dated prices only — not live retailer prices. Last checked 2026-06-29. Check current price at the retailer.

Related products in this category

Nutricost Magnesium Citrate Capsules (120 Capsules)

Nutricost

SuppCheckr Score79/100

NOW Magnesium Malate 1000 mg Tablets (180 Tablets, SKU 1300)

NOW Foods

SuppCheckr Score78/100

Pure Encapsulations Magnesium (Citrate/Malate) (180 Capsules)

Pure Encapsulations

SuppCheckr Score71/100

Nature Made Magnesium Oxide 250 mg Tablets (100 Tablets)

Nature Made

SuppCheckr Score77/100

Sources

  1. Klean Magnesium — brand product page Supplement Facts — Klean Athlete (brand_label)
  2. Klean Magnesium product page (price) — Klean Athlete (retailer_listing)
  3. NSF Certified for Sport — Klean Magnesium — NSF International (certification_body)
  4. SuppCheckr price-per-serving and price-per-100-mg-elemental calculation — SuppCheckr (internal_editorial)

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