Last update
3/10/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
USERS' SCORE
Moderately Good
Based on 7 Reviews
7.3
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Vitamin K2(as Menaquinone-7) (MK-7 ) (MenaQ7®)
100 mcg
**
Top Medical Research Studies
9
We designed a multicenter, double-blind, placebo-controlled trial to explore if vitamin K2 can effectively manage nocturnal leg cramps (NLCs).
Conducted in China with older adults experiencing regular cramps, participants were randomly assigned to receive either vitamin K2 or a placebo for 8 weeks. Remarkably, our findings demonstrated that vitamin K2 significantly reduced the frequency, duration, and intensity of NLCs, making it a promising option for those suffering from this discomfort.
Notably, the treatment showed good safety profiles, reinforcing its potential utility in managing leg cramps.
Conducted in China with older adults experiencing regular cramps, participants were randomly assigned to receive either vitamin K2 or a placebo for 8 weeks. Remarkably, our findings demonstrated that vitamin K2 significantly reduced the frequency, duration, and intensity of NLCs, making it a promising option for those suffering from this discomfort.
Notably, the treatment showed good safety profiles, reinforcing its potential utility in managing leg cramps.
Read More
Most Useful Reviews
9
Cramps resolved
4 people found this helpful
This works! I take vitamin D3 in the morning. I have always experienced a shortage of calcium and magnesium and suffered from leg cramps. I ordered this vitamin after reading about it. Note: magnesium isn’t suitable for me due to low blood pressure, but now, I have no leg cramps, and my calcium levels have improved according to my tests.
Read More
9
Aches disappeared quickly
1 people found this helpful
The product is excellent; after starting vitamin K2 mk7 with Magnesium Dimalate, my body aches vanished within two days. I previously used Cataflan on my legs due to the pain, but now I no longer need these ointments. I feel much better and sleep well.
Read More
9
Joint pain diminished
MK-7, Vitamin K2 is excellent. I previously took D3, but experts advised me to add K2 for better calcium integration into the bones. After a while, my leg joints no longer hurt. This product is truly beneficial, and I will repurchase.
Read More
Medical Researches
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
- All Researches
9
We designed a multicenter, double-blind, placebo-controlled trial to explore if vitamin K2 can effectively manage nocturnal leg cramps (NLCs).
Conducted in China with older adults experiencing regular cramps, participants were randomly assigned to receive either vitamin K2 or a placebo for 8 weeks. Remarkably, our findings demonstrated that vitamin K2 significantly reduced the frequency, duration, and intensity of NLCs, making it a promising option for those suffering from this discomfort.
Notably, the treatment showed good safety profiles, reinforcing its potential utility in managing leg cramps.
Conducted in China with older adults experiencing regular cramps, participants were randomly assigned to receive either vitamin K2 or a placebo for 8 weeks. Remarkably, our findings demonstrated that vitamin K2 significantly reduced the frequency, duration, and intensity of NLCs, making it a promising option for those suffering from this discomfort.
Notably, the treatment showed good safety profiles, reinforcing its potential utility in managing leg cramps.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 7 Reviews
7.3
- All Reviews
- Positive Reviews
- Negative Reviews
9
Cramps resolved
4 people found this helpful
This works! I take vitamin D3 in the morning. I have always experienced a shortage of calcium and magnesium and suffered from leg cramps. I ordered this vitamin after reading about it. Note: magnesium isn’t suitable for me due to low blood pressure, but now, I have no leg cramps, and my calcium levels have improved according to my tests.
Read More
9
Aches disappeared quickly
1 people found this helpful
The product is excellent; after starting vitamin K2 mk7 with Magnesium Dimalate, my body aches vanished within two days. I previously used Cataflan on my legs due to the pain, but now I no longer need these ointments. I feel much better and sleep well.
Read More
9
Joint pain diminished
MK-7, Vitamin K2 is excellent. I previously took D3, but experts advised me to add K2 for better calcium integration into the bones. After a while, my leg joints no longer hurt. This product is truly beneficial, and I will repurchase.
Read More
7.5
Improved condition overall
3 people found this helpful
Excellent! I take it with D3, magnesium, and potassium. The capsule is small and easy to swallow. The cramps from intermittent fasting and a low-carb diet have noticeably improved.
Read More
6
Cramps reduced effectively
I take potassium citrate and magnesium citrate together, and found it effectively reduces leg cramps.
Read More
Frequently Asked Questions
9
Aches disappeared quickly
1 people found this helpful
The product is excellent; after starting vitamin K2 mk7 with Magnesium Dimalate, my body aches vanished within two days. I previously used Cataflan on my legs due to the pain, but now I no longer need these ointments. I feel much better and sleep well.
7.5
Improved condition overall
3 people found this helpful
Excellent! I take it with D3, magnesium, and potassium. The capsule is small and easy to swallow. The cramps from intermittent fasting and a low-carb diet have noticeably improved.
7.5
Improved circulation observed
Initially, I doubted its effectiveness, but after stopping, my legs began to hurt due to poor circulation. Upon resuming, I found it helpful, indicating it was beneficial for me.
9
Cramps resolved
4 people found this helpful
This works! I take vitamin D3 in the morning. I have always experienced a shortage of calcium and magnesium and suffered from leg cramps. I ordered this vitamin after reading about it. Note: magnesium isn’t suitable for me due to low blood pressure, but now, I have no leg cramps, and my calcium levels have improved according to my tests.
6
Cramps reduced effectively
I take potassium citrate and magnesium citrate together, and found it effectively reduces leg cramps.
9
We designed a multicenter, double-blind, placebo-controlled trial to explore if vitamin K2 can effectively manage nocturnal leg cramps (NLCs).
Conducted in China with older adults experiencing regular cramps, participants were randomly assigned to receive either vitamin K2 or a placebo for 8 weeks. Remarkably, our findings demonstrated that vitamin K2 significantly reduced the frequency, duration, and intensity of NLCs, making it a promising option for those suffering from this discomfort.
Notably, the treatment showed good safety profiles, reinforcing its potential utility in managing leg cramps.
Conducted in China with older adults experiencing regular cramps, participants were randomly assigned to receive either vitamin K2 or a placebo for 8 weeks. Remarkably, our findings demonstrated that vitamin K2 significantly reduced the frequency, duration, and intensity of NLCs, making it a promising option for those suffering from this discomfort.
Notably, the treatment showed good safety profiles, reinforcing its potential utility in managing leg cramps.
References
- Tan J, Zhu R, Li Y, Wang L, Liao S, et al. Vitamin K2 in Managing Nocturnal Leg Cramps: A Randomized Clinical Trial. JAMA Intern Med. 2024;184:1443. 10.1001/jamainternmed.2024.5726
Data last updated:
