---
title: "Potassium Magnesium Supplement — $975K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/potassium-magnesium-supplement"
last_updated: "2026-08-11T21:19:21.174Z"
locale: en
meta:
description: "Niche score 62/100 · $975K/yr market · 622K searches/yr · $19.15 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 62/100 · $975K/yr market · 622K searches/yr · $19.15 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Potassium Magnesium Supplement — $975K/yr Amazon US Niche (2026) - Flapen"
---
# **potassium magnesium supplement**
**Launch it**
A $975K/yr market growing +2.1% this quarter with returns at 0.0% — clears our launch bar.
Market size 77Growth 28Conversion 80Competition 51Returns 100Price range 76Avg price 85Brand share 77Review moat 38Quality gap 28
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$19.15**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.2%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Great****$975K**
$975K/yr · 622K searches
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Price range**
**Great****$7.59–$38.95**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,653**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+2.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, potassium magnesium supplement is a $975K/yr Amazon United States market (622K searches/yr). The top 5 brands hold 58% of demand. Verdict: Launch it — 62/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **potassium magnesium supplement market data**
- **Units sold / yr**
- **50K–60K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$958K–$1.1M**
- units × avg price
- **Conversion rate**
- **8.2%**
- **Avg BSR**
- **#352**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **81%**
- **Out of stock**
- **10.7%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **151 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**24 **▲rising
**Sellers**
**482**
**Top-5 brand share**
**58%**
Top 20: 96%
**Top-5 click share**
**54%**
Top 20: 93%
**Open market**
**36%**
- Nutricost17% - MD.LIFE15% - Santa Cruz Paleo10% - Life Extension9% - Nobi Nutrition7% - Carlyle6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +2.1% search growth over the last 90 days.
18K13KSpike '24Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/potassium-magnesium-supplement/trend)
## **Top potassium magnesium supplement search terms**
- **potassium magnesium supplement**212K/yr-7.0%9.3% conv. - **magnesium and potassium supplement**54K/yr+4.0%6.5% conv. - **magnesium potassium supplements**52K/yr+10.3%6.8% conv. - **magnesium potassium**38K/yr-2.0%7.1% conv. - **potassium and magnesium supplement**28K/yr+10.9%7.6% conv. - **citrato de magnesio y potasio**36K/yr-13.7%2.0% conv. - **magnesio y potasio**37K/yr-22.2%3.3% conv. - **potasio y magnesio**30K/yr+19.0%3.0% conv. - **potassium magnesium**24K/yr+6.0%7.1% conv. - **santa cruz magnesium**14K/yr+38.8%10.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/potassium-magnesium-supplement/search-terms)
## **Top potassium magnesium supplement products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$49K10%$97K15%$146K20%$195K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nutricost Potassium (99mg) Magnesium (210 mg) Citrates 240 Capsules**Nutricost**$13.85**4.6★3,623 rev](https://www.amazon.com/dp/B099MFG54P) [2**MD. Life Potassium Magnesium Supplement High Absorption 90 Capsules**MD.LIFE**$19.65**4.6★8,569 rev](https://www.amazon.com/dp/B06XH2X284) [3**Life Extension Potassium with Extend-Release Magnesium Heart Health Supplement for Blood Pressure Support with Two Essential Minerals Non-GMO Vegetarian Gluten-Free 60 Capsules**Life Extension**$9.62**4.6★6,753 rev](https://www.amazon.com/dp/B07P891S96) [4**Santa Cruz Paleo Magnesium + Potassium Caps Supplement for Men and Women Paleo Keto Sugar & Gluten Free Magnesium Glycinate 166mg and Potassium Citrate 38mg per Serving American Made 60 Caps**Santa Cruz Paleo**$20.01**4.6★633 rev](https://www.amazon.com/dp/B0BZWYMZMC) [5**Potassium Magnesium Supplement High Strength Heart Health & Muscle Support**Nobi Nutrition**$17.19**4.6★1,421 rev](https://www.amazon.com/dp/B0FC35P8SV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Magnesium Glycinate Potassium with D3 10 000 IU & K2 MK-7 180 Capsules**MEGNETA**$38.95**38 rev3mo ago](https://www.amazon.com/dp/B0FY34MHM6) [**Potassium Magnesium Supplement Liquid High Absorption Sugar Free 16 Fl**Alliwise**$36.53**1,075 rev6mo ago](https://www.amazon.com/dp/B0GGXYZK9T) [**Potassium Magnesium Gummies with Electrolytes & Vitamins - Magnesium Glycinate Potassium Citrate Calcium Vitamins B6 D3 & K2 for Muscle Function & Recovery - Vegan Strawberry 60 Count**Haohan**$15.43**100 rev10mo ago](https://www.amazon.com/dp/B0FKNHQTQ9) [**Potassium Magnesium Gummies High Absorption Magnesium Glycinate D3 & B6 Potassium Citrate - for Muscle Support Leg Cramps & Electrolyte Balance - Vegan Non-GMO Strawberry Flavor 60 Count**Saajoor**$13.32**143 rev10mo ago](https://www.amazon.com/dp/B0FHWFS8R2) [**Potassium Magnesium Supplement Magnesium Potassium Zinc Supplement with Vitamin D3& K2 Support Immune for Women & Men Enhanced Absorption Non-GMO (120 Veg Capsules)**Lofei**$19.79**141 rev1y ago](https://www.amazon.com/dp/B0F8R5TCJV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Magnesium Glycinate Potassium with D3 10 000 IU & K2 MK-7 180 Capsules**MEGNETA**$38.95**4.7★**▲ 280%**](https://www.amazon.com/dp/B0FY34MHM6) [**Potassium Magnesium Supplement Liquid High Absorption Sugar Free 16 Fl**Alliwise**$36.53**4.6★**▲ 254%**](https://www.amazon.com/dp/B0GGXYZK9T) [**Santa Cruz Paleo Zinc & Copper Mineral Supplement High Absorption Formula Zinc Supplement for Skin & Hair L Methionine Copper Gluconate Trace Minerals Gluten Free Keto Paleo 60 Capsules**Santa Cruz Paleo**$15.18**4.6★**▲ 144%**](https://www.amazon.com/dp/B0F1C6RVZX) [**Potassium Magnesium Gummies with Electrolytes & Vitamins - Magnesium Glycinate Potassium Citrate Calcium Vitamins B6 D3 & K2 for Muscle Function & Recovery - Vegan Strawberry 60 Count**Haohan**$15.43**4.5★**▲ 95%**](https://www.amazon.com/dp/B0FKNHQTQ9) [**Potassium Magnesium Gummies High Absorption Magnesium Glycinate D3 & B6 Potassium Citrate - for Muscle Support Leg Cramps & Electrolyte Balance - Vegan Non-GMO Strawberry Flavor 60 Count**Saajoor**$13.32**4.7★**▲ 66%**](https://www.amazon.com/dp/B0FHWFS8R2)
**~~View all trending →~~**
## **What buyers say about potassium magnesium supplement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Good quality”*
**Muscle Pain Relief**9%
*“Amazing for muscle cramps”*
**Taste-Overall**8%
*“Tastes great, like real gummies if not better”*
**Sleep Quality**8%
*“Helps me sleep”*
**Vitamin**8%
*“Fun yum with vitamins”*
**Magnesium**7%
*“best tasting Magnesium gummies I've ever Tried”*
**Value For Money**6%
*“Great value”*
**Joint Pain**5%
*“They helped with my cramping of my leg”*
**Efficiency**4%
*“Effective”*
**Advertised Vs Actual Product**3%
*“Does as advertised”*
### **What buyers complain about **
**Taste-Overall**18%
*“Does not taste good”*
**Magnesium**9%
*“This is a RIDICULOUSLY LOW dosage of magnesium”*
**Calcium**5%
*“Not a good source of potassium”*
**Size-Overall**4%
*“Kinda small”*
**Vitamin**4%
*“This batch of vitamin is smelt so bad never been happened before”*
**Ingredients-Overall**3%
*“Changes ingredients”*
**Texture/Consistency-Overall**3%
*“The texture is off as well”*
**Dosage**3%
*“Very tricky you have to take three of them in order to get the dose on the label”*
**Smell**3%
*“the odor seems abnormal”*
**Quality-Overall**3%
*“felt cheaply manufactured”*
### **Top return reasons **
**Value For Money**18%
**Taste-Overall**18%
**Magnesium**18%
**Advertised Vs Actual Product**9%
**Artificial Sweeteners**9%
**Material Quality**9%
**Functionality-Overall**9%
**Vitamin**9%
## **Common questions**
- **Is potassium magnesium supplement profitable to sell on Amazon United States?**
- The niche generates $975K/yr across 27 tracked products. 6 of 6 products launched in the last 360 days are still selling. 90-day search growth is +2.1%. Flapen's verdict: Launch it (62/100).
- **How competitive is the potassium magnesium supplement niche?**
- 24 brands and 482 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 58% of demand.
- **What do buyers complain about in potassium magnesium supplement?**
- Top complaints mined from reviews: Taste-Overall, Magnesium, Calcium. The return rate is 0.0%.
- **When does demand for potassium magnesium supplement peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the potassium magnesium supplement niche?**
- Listings span $7.59–$38.95; the average listing price is $19.15 (sweet spot $15–$100). The average incumbent carries 2,653 reviews — the moat a new listing must climb.
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