Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 2 Reviews
8.4
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Nattokinase (2,000 FU) (enzyme from Natto Extract) (Non-GMO soy derived)
100 mg
**

Top Medical Research Studies

8
Nattokinase aids cold recovery
We conducted a study to explore how a single dose of nattokinase (NK) influences recovery of skin temperature after exposure to cold water. This double-blind, placebo-controlled crossover study involved nine healthy men who took either NK or a placebo before submerging their hands in ice-cold water at 10 °C for one minute.

Our findings showed that participants who took NK experienced a quicker recovery of skin temperature in their middle finger, palm, and back of the hand compared to those who took the placebo. Although cold exposure initially caused a significant drop in skin temperature, the NK appeared to accelerate the warming process afterward.

Interestingly, we did not observe any changes in heart rate, cardiac output, or sympathetic nervous activity as a result of taking NK. This is noteworthy because it suggests that while NK may help with temperature recovery, it does not impact certain cardiovascular responses typically associated with cold exposure.

Overall, our study highlights the potential benefits of nattokinase, especially for individuals who are more sensitive to cold, such as women and the elderly. It could offer a new avenue for managing cold sensitivity and minimizing excessive vasoconstriction during chilly conditions.
Read More

Most Useful Reviews

9
Effective immune support
Hello everyone! I truly trust this brand's supplements! I've tried various ones, all of excellent quality! Reasonable price, great ingredients, and good formulation. I bought this product as immune support during colds. It fulfils this role perfectly. The packaging is convenient, and the lid closes securely. The capsules are of standard size, making them easy to use.
Read More
7
Improves cold sensitivity
I decided to try nattokinase after learning about its benefits for blood vessels and circulation. I sometimes experience heaviness in my legs and cold extremities, so I wanted to see if this enzyme would help. After taking it for about a month, I noticed less fatigue in my legs and reduced feelings of cold in my hands and feet. Additionally, my overall well-being has improved; I now have more energy instead of feeling sleepy after lunch. There were no side effects, as I adhered strictly to the instructions and did not mix it with other blood-thinning supplements. I believe I will continue to use it periodically, particularly during times when I’m sedentary.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
  • All Researches
8
Nattokinase aids cold recovery
We conducted a study to explore how a single dose of nattokinase (NK) influences recovery of skin temperature after exposure to cold water. This double-blind, placebo-controlled crossover study involved nine healthy men who took either NK or a placebo before submerging their hands in ice-cold water at 10 °C for one minute.

Our findings showed that participants who took NK experienced a quicker recovery of skin temperature in their middle finger, palm, and back of the hand compared to those who took the placebo. Although cold exposure initially caused a significant drop in skin temperature, the NK appeared to accelerate the warming process afterward.

Interestingly, we did not observe any changes in heart rate, cardiac output, or sympathetic nervous activity as a result of taking NK. This is noteworthy because it suggests that while NK may help with temperature recovery, it does not impact certain cardiovascular responses typically associated with cold exposure.

Overall, our study highlights the potential benefits of nattokinase, especially for individuals who are more sensitive to cold, such as women and the elderly. It could offer a new avenue for managing cold sensitivity and minimizing excessive vasoconstriction during chilly conditions.
Read More

User Reviews

USERS' SCORE
Good
Based on 2 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Effective immune support
Hello everyone! I truly trust this brand's supplements! I've tried various ones, all of excellent quality! Reasonable price, great ingredients, and good formulation. I bought this product as immune support during colds. It fulfils this role perfectly. The packaging is convenient, and the lid closes securely. The capsules are of standard size, making them easy to use.
Read More
7
Improves cold sensitivity
I decided to try nattokinase after learning about its benefits for blood vessels and circulation. I sometimes experience heaviness in my legs and cold extremities, so I wanted to see if this enzyme would help. After taking it for about a month, I noticed less fatigue in my legs and reduced feelings of cold in my hands and feet. Additionally, my overall well-being has improved; I now have more energy instead of feeling sleepy after lunch. There were no side effects, as I adhered strictly to the instructions and did not mix it with other blood-thinning supplements. I believe I will continue to use it periodically, particularly during times when I’m sedentary.
Read More

Frequently Asked Questions

No FAQs are available for this product and symptom.

References

  1. Nara N, Kurosawa Y, Fuse-Hamaoka S, Kuroiwa M, Endo T, et al. A single dose of oral nattokinase accelerates skin temperature recovery after cold water immersion: A double-blind, placebo-controlled crossover study. Heliyon. 2023;9:e17951. doi:10.1016/j.heliyon.2023.e17951
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