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Source Naturals, K-Mag KG, 1185 mg, 60 Tablets

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Out of Stock
  • Shipping Weight: 0.3 lbs (0.14 kg)
  • Product Code: SNS-00040
  • UPC Code: 021078000402
  • Package Quantity: 60 Tablets
  • Dimensions: 2 x 2 x 3.8 in, 0.25 lbs (0.11 kg)
Product Overview


  • Dietary Supplement
  • Athletic Series
  • Potassium & Magnesium Alpha-Ketoglutarate

K-Mag KG is a combination of the essential minerals potassium and magnesium with alpha-ketoglutaric acid (AKG). Potassium, magnesium, and AKG all have important roles in the Krebs cycle, the body's main energy production system. Potassium is important for muscle strength and glycogen formation, while magnesium helps store body energy as magnesium ATP (adenosine triphosphate, the body's chief energy molecule). AKG combines with the harmful ammonia generated by intense muscle activity to create glutamine, an important energy fuel.

Suggested Use

1 to 2 tablets daily with a meal.

Other Ingredients

Stearic acid, acacia gum, modified cellulose gum, colloidal silicon dioxide, and magnesium stearate.

Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, salt, preservatives, or artificial color, flavor or fragrance.


Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 2 Tablets
Servings Per Container: 30
  Amount Per Serving %DV
Calories 10  
Total Carbohydrate 2 g 1%*
Magnesium (from magnesium alpha-ketoglutarate) 200 mg 50%
Potassium (from potassium alpha-ketoglutarate) 198 mg 6%
alpha-Ketoglutaric Acid 1.97 g
*Percent Daily Values (%DV) are based on a 2,000 calorie diet.
†Daily Value not established.
iHerb Customer Reviews

Good Product

Posted by 5758450263846515552 on May 31, 2014

Best Magnesium product that I have used.

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Gives me lots of energy

Posted by danarm on Mar 28, 2014

Also drops my blood pressure a bit. This is excellent!

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Source Naturals, K-Mag KG

Posted by Reviewer2167095 on Nov 10, 2012

Unique & very good Alpha-Ketoglutarate formulation.

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Saving my brain

Posted by Reviewer3014658 on Feb 21, 2011

I have chronic Lyme disease, and many of the protocols that kill off Lyme and its co-infections produce nasty by-products: especially ammonia in the brain. This can cause irritability, negativity, anxiety and brain-fog. K-Mag-Kg is a fantastic ammonia mopper, which has greatly helped me as well as others in my Lyme groups. I take two daily and keep extra on hand always in case of extra die-off symptoms. Great stuff!

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Seems effective

Posted by Reviewer3242654 on Nov 09, 2010

I had a job finding a reasonably pure AKG supplement having tested very low on a metabolic acid profile. I was concerned that I might not tolerate this due to fillers/binders, but - two weeks in - it seems fine. I think I have noticed a slight increase in energy/stamina, though this is only part of my personal picture, so I can't say for sure yet. Five stars, because I'm pretty sure it's the real McCoy.

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