Potassium & Magnesium Aspertate | GNC

GNC Potassium & Magnesium Aspertate


Item # 257212



  • Count
Size: 120 Capsules

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Product Information


Helps regulate water balance and is necessary for normal nerve & muscle cell function*

Label (click image to enlarge)


As a dietary supplement, take one capsule with a meal. For maximum support, take as directed every day.



Other Ingredients

Gelatin, Cellulose
Distributed by: General Nutrition Corporation Pittsburgh, PA 15222

Nutrition Facts

Serving Size  1 Capsule(s)
Servings Per Container  120

Amount Per Serving     % DV

Monomagnesium Di-L-Aspartate  250 mg   **
Monopotassium Aspartate  250 mg   **

** Daily Value (DV) not established.


4.9 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Middle of the night relief.
Great product. It relieves muscle cramps quickly. I actually keep the bottle close at night. Also, when I excercise or garden in the heat I often get cramps, even though I drink 2+ quartsof water every day.
July 25, 2018
1 year ago
Good for Atrial Fibrillation
I have had atrial fibrillation for over 20 years. I take this supplement to help keep the right ratio of Sodium to Potassium which enables the heart to work better.
Magnesium is also beneficial in maintaining the health of the heart.
Dr Greg Sceney
July 15, 2018
1 month ago
Was waking up on a regular basis with leg cramps, now it is rare
June 13, 2018
2 months ago
Get daily vitamin for potassium and magnesium with 1 pill
I like the potassium and magnesium aspertate because it is a easy to swallow pill and it gives me my daily requirements of potassium and magnesium in one pill.I would recommend this product.
May 26, 2018
3 months ago
Great for those who are on the verge of high blood pressure ...this works perfectly
March 21, 2018
Helps my blood pressure
I have been using this for 5+ years and it has help lower my blood pressure, leg cramps and palpitations. I have recommended this to 10 plus people and it has helped them also. It is a great supplement.
February 17, 2018
Love the home delivery
I have been on this product for years per my doctor's instructions. After shopping around, I found GNC to be the best price. And I just discovered the on line, home delivery service. LOVE that I don't have to go to the store.
October 21, 2017
10 months ago
Potassium & Magnesium
This is a very good product. It is great for leg cramps in the middle of the night. About five to ten minutes, and back to bed!
October 17, 2017
11 months ago
Potassium & Magnesium Aspartate
We have used GNC Potassium & Magnesium Aspartate for years and have found it consistently good. This product is not easy to find from other vendors with whom we do business. We always return to GNC to save time at a good price.
August 28, 2017
1 year ago
leg cramps
This is the most effective product I have ever used... The leg cramps I was having started years ago, and progressed with no relief.. I couldn't sleep. I was really sick. My doctor prescribed me 2 different medications that made me throw up, and every side affect listed, I experienced, and I ended up on the bathroom floor for hours.... I would recommend this to anybody who has a problem with unexplained leg cramps...
August 11, 2017
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Browse 9 questions Browse 9 questions and 7 answers
How much actual potassium is in this product? I currently take a Nature Made supplement, and it lists 99 mg of potassium.
A shopper on May 15, 2014
BEST ANSWER: There are 250mg of potassium in this product.
how many pills a day should you take or can you take?
A shopper on May 8, 2016
BEST ANSWER: I am not a doctor or pharmacist, but I can say that I take two per day and have excellent results for my night muscle cramping.
Does this have to be taken whole or can I open the capsule?
A shopper on Mar 5, 2018
A neurologist has prescribed this supplement for my 10 year old daughter for migraines. Does it come in a form easy for a child to take... chewable? Liquid? Can it be crushed without tasting super foul?
A shopper on Mar 13, 2014
BEST ANSWER: This specific product is in a capsule form only. If the taste is off-putting, swig a large amount of water before and after swallowing so the flavor is minimally detected on the taste buds
Is this a good supplement for a keto diet?
Mikayla M on Aug 13, 2018
does this product really work for muscle cramps?
Melvin V on Jul 27, 2018
BEST ANSWER: I take this daily and I don’t get very many muscle cramps too often but I don’t think there is anything that will totally wipe out getting a cramp in your muscles .
I take Phentermine for weight loss and get severe leg cramps especially at night. I have been taking a potassium supplement in the morning w a multi vitamin & Extra strength biotin for hair skin & nails. I still periodically get leg cramps but not as bad since adding the extra Potassium. Do you recommend this product for the symptoms I am describing?
A shopper on Oct 1, 2013
BEST ANSWER: This product is a great supplement for magnesium and potassium. Be sure to increase your water intake as well.
If I am using this product while doing KETO should I only be taking it once a day?
JennB on Aug 16, 2018
does this work for gaut?
A shopper on Jul 25, 2018