Page 1 - Reviews - Nutricost, Potassium + Magnesium, 240 Capsules - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.8
Based on 1,501 ratings
1,314
145
32
5
5
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What customers say
Customers consistently praise the product for its high quality, effective ingredients, and noticeable health benefits. Many users report improvements in sleep, muscle cramps, energy levels, and overall wellness after using the magnesium and potassium supplement. The capsules are noted for being easy to swallow without any unpleasant aftertaste or stomach issues. Customers appreciate the convenient packaging and find the dosage appropriate for their needs. The brand is recognized as reliable and affordable, with several customers expressing intent to repurchase. Some users specifically mention positive effects on conditions like leg cramps during sleep and muscle recovery post-exercise. While most feedback is positive, a few users note a slightly bitter taste but still recommend the product for its health benefits.
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iHerbCustomer
Posted on Dec 26, 2024
Thailand
48
6
3
7
Vital supplements as we get older
Verified purchase
I had a potassium deficiency which showed up as leg cramps in the middle of the night. That’s no longer an issue, because I take one of these every day.
445396e2-7ea0-46dc-84a0-70ecc4739267
Anton
Silver
Posted on Feb 18, 2025
Thailand
123
0
5
33
Verified purchase
Hey! Just tried out Nutricost's Potassium + Magnesium combo capsules and I'm pretty happy with them! Love that they packed both minerals into one capsule - super convenient instead of taking separate supplements. The capsules are easy to swallow and don't leave any nasty aftertaste. Haven't had any stomach issues either, which is great. The bottle gives you 240 capsules, so it lasts quite a while. Price is really good for what you get. Only minor thing is you need to take 2 capsules per serving, but that's not really a big deal. Overall, solid supplement that does what it promises. Will definitely buy again! 👍
iHerb customer
Posted on Aug 29, 2025
Philippines
25
0
0
2
Verified purchase
This is one of the best vitamin C supplements I've tried! The absorption is noticeably better thanks to the liposomal form, and it's very gentle on the stomach—no discomfort or acidity at all. I felt a clear boost in my immunity after just a few days of use. The antioxidant benefits are real, and I love that it's high quality with clean ingredients. The taste is surprisingly pleasant, and the individual packets are super convenient for travel. Great mg dosage and well thought-out package size. Highly recommend!|
ira
Silver
Posted on Aug 17, 2025
Israel
105
0
0
19
A Reliable Daily Supplement
Verified purchase
I picked up Nutricost's Potassium + Magnesium to add to my daily routine, and I'm very happy with it. The capsules are easy to take, and I've found it to be a simple, reliable way to support my body. This product has helped me feel more balanced, especially on days when I'm active. The combination of both minerals in one capsule is convenient, and I appreciate the straightforward, no-frills quality of the product. For anyone looking for a simple and effective supplement to support their general well-being, this is a solid choice.
iHerb customer
Posted on Aug 9, 2025
Philippines
17
0
0
0
Verified purchase
This is one of the best vitamin C supplements I’ve tried! The absorption is noticeably better thanks to the liposomal form, and it’s very gentle on the stomach—no discomfort or acidity at all. I felt a clear boost in my immunity after just a few days of use. The antioxidant benefits are real, and I love that it’s high quality with clean ingredients. The taste is surprisingly pleasant, and the individual packets are super convenient for travel. Great mg dosage and well thought-out package size. Highly recommend!
iHerbCustomer
Silver
Posted on Dec 16, 2025
United Kingdom (UK)
121
0
2
5
Acceptable Convenient Supplement
Verified purchase
Not the highest dose but acceptable convenient supplement. Nice to have around and take daily. Importantly not an nasty Oxide form of Magnesium.
MOHAMEDMOHSEN
Gold
Posted on Sep 5, 2025
Kuwait
450
24
20
25
“Nutricost Potassium + Magnesium offer
Verified purchase
“Nutricost Potassium + Magnesium offers 240 capsules per bottle, giving a long-lasting supply. The quality is solid, combining two essential minerals that support muscles, nerves, and overall health. The capsules are easy to swallow, and the large count makes it a cost-effective and convenient choice for daily use.”
iHerb customer
Posted on Aug 30, 2025
Ireland
2
0
0
1
A Simple and Effective Way to Support My Electrolyte Balance
Verified purchase
I have tried Nutricost's Potassium + Magnesium supplement as part of my daily routine for the last six months, and it has become a reliable staple for my overall wellness. My main goals were to support healthy muscle function, reduce occasional nighttime leg cramps, and ensure I was getting enough of these crucial electrolytes, especially on days when my diet wasn't perfect or after a sweaty workout. I have tried other electrolyte products in the past, but many are packed with sugar or come as powders that are inconvenient for travel. I have tried taking two capsules with a large glass of water both in the morning and with my evening meal. I found that this consistent routine worked best for me. The capsules are a standard size—not too large—and I haven't experienced any stomach discomfort. The most noticeable benefit for me has been a significant reduction in those frustrating leg cramps that would sometimes wake me up at night. I also feel like my muscles recover more quickly after exercise. The value is a major plus. I have tried to be consistent with supplements in the past, but the cost of some brands made it difficult. Getting a 240-capsule bottle (a 120-day supply for me) at this price point is fantastic and makes it easy to stay consistent. It's important to note that I have tried this supplement alongside a balanced diet and proper hydration—it's not a magic pill, but it effectively fills in the nutritional gaps. As always, it's wise to consult with a doctor before starting any new supplement, especially with minerals like potassium. For me, this has been a simple, effective, and affordable way to support my health.
iHerb customer
Silver
Posted on Jul 30, 2025
Croatia
156
0
2
38
Verified purchase
I usually take the powder version of magnesium, but I like this one after workout because of added potassium. Both minerals are essential for heart and muscle contraction. Nutricost brings quality and size at affordable prices.
CamaroZ28
Silver
Posted on Jul 27, 2025
United States
101
0
16
31
Verified purchase
Potassium and magnesium are essential for maintaining a healthy heart rhythm and muscle function. They help regulate blood pressure and support normal electrical activity in the heart. Together, they reduce the risk of arrhythmias and cardiovascular stress.