BioStacks
Source Naturals

K-Mag Aspartate

1 Tablet · 40 servings

iHerbAmazon

Best for

HydrationHeart

Ingredients (2)

Potassium

100%

Dose

297 mg

Target

99–500 mg

Form

Budget

Magnesium

100%

Dose

225 mg

Target

100–400 mg

Form

Budget

Nutrition

Calories, macros & sodium.

  • Sodium5 mg

Other Ingredients

No other ingredients listed

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

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

Price Check

No price yet

$10$20$50

What 574 magnesium supplements cost

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Ancient Mineral Salts (Natural Electrolytes)

Aurum

Ancient Mineral Salts (Natural Electrolytes)

💧 for Hydration

80
Alka Clear Drink

Higher Nature

Alka Clear Drink

💧 for Hydration

79
MagSoothe (Tart Raspberry Lemonade)

Jigsaw Health

MagSoothe (Tart Raspberry Lemonade)

😴 for Sleep

79
Krebs Magnesium Potassium Complex

Nature's Way

Krebs Magnesium Potassium Complex

❤️ for Heart

75
Krebs Magnesium-Potassium Complex

Integrative Therapeutics

Krebs Magnesium-Potassium Complex

❤️ for Heart

68

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.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart
© 2026 BioStacks. All rights reserved. Not medical advice.