Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 2 Reviews
8.6
Supplement Facts
Serving Size: 1 Veggie Capsule
Serving Per Container: 90
Amount Per Serving
%DV
Nattokinase(from fibrinase enzyme)
2,000 FU**
†
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.
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
Significant improvement
285 people found this helpful
It is a great product for some people. I felt compelled to write a review about "Doctor's Best Best Nattokinase (2,000 Fu)" due to the improvement my family has experienced over the last two years. My father had a heart attack two and a half years ago, leading me to seek additional supplements. After research, I discovered Nattokinase and decided to try "Doctor's Best". The benefits are steady and substantial. After consulting the doctor, my father began taking 2k Fu pills daily, adjusting according to the seasons. A year later, his ECG reflected noticeable improvement, and recently, after two years, his condition has significantly improved, according to the doctor. I started it as well for high blood pressure, and I can see my levels have dropped.
Read More
7.5
Better circulation
35 people found this helpful
My husband swears by this brand, and we are repeat buyers. He has had issues with high blood pressure and hearing his pulse at night. After starting NATTOMAX, he noticed a tremendous improvement, feeling that his circulation has generally improved and that he no longer feels 'hot on top, cold on the bottom' as he did previously. This is the second brand he has tried, and he notes that this one is just as effective as the more expensive brand. We've bought this many times, and it remains his favourite as he notices a difference when switching brands.
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.
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
8.6
- All Reviews
- Positive Reviews
- Negative Reviews
9
Significant improvement
285 people found this helpful
It is a great product for some people. I felt compelled to write a review about "Doctor's Best Best Nattokinase (2,000 Fu)" due to the improvement my family has experienced over the last two years. My father had a heart attack two and a half years ago, leading me to seek additional supplements. After research, I discovered Nattokinase and decided to try "Doctor's Best". The benefits are steady and substantial. After consulting the doctor, my father began taking 2k Fu pills daily, adjusting according to the seasons. A year later, his ECG reflected noticeable improvement, and recently, after two years, his condition has significantly improved, according to the doctor. I started it as well for high blood pressure, and I can see my levels have dropped.
Read More
7.5
Better circulation
35 people found this helpful
My husband swears by this brand, and we are repeat buyers. He has had issues with high blood pressure and hearing his pulse at night. After starting NATTOMAX, he noticed a tremendous improvement, feeling that his circulation has generally improved and that he no longer feels 'hot on top, cold on the bottom' as he did previously. This is the second brand he has tried, and he notes that this one is just as effective as the more expensive brand. We've bought this many times, and it remains his favourite as he notices a difference when switching brands.
Read More
Frequently Asked Questions
No FAQs are available for this product and symptom.
References
- 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
