
Why Should You Take Nattokinase On An Empty Stomach?
To maximize its effectiveness, Nattokinase should be taken on an empty stomach. This timing helps the enzyme avoid interaction with food proteins, allowing it to enter the bloodstream intact and support systemic functions. The following article will help you better understand the best time to take Nattokinase.
Before exploring further, please read the disclaimer located at the end of this webpage.
Key Takeaways
- Take Nattokinase on an empty stomach to avoid interference from food proteins.
- The enzyme is acid-resistant and survives stomach digestion.
- Natto is a natural source, but supplements are more convenient.
- Best taken 30 minutes before or 1 hour after meals.
- May be combined with Serrapeptase for added cardiovascular and immune support.
- Consult a healthcare provider before use, especially if you have allergies, health conditions, or take medications.
Why Should You Take Nattokinase On an Empty Stomach?
Taking Nattokinase on an empty stomach helps maximize its effectiveness. Nattokinase, a natural enzyme from the Japanese dish Natto, helps break down blood clots and other unwanted protein build-ups.
If taken with food, it may bind with dietary proteins and act more like a digestive enzyme.Studies suggest that enzymes work better when taken without food, as they can act directly in the body instead of focusing on digestion [3].
That’s why taking Nattokinase on an empty stomach helps it reach your bloodstream and do its job effectively [1].

Is Nattokinase Absorbed In The Stomach?
Contrary to popular belief, Nattokinase is not destroyed by stomach acid. While many assume that this enzyme breaks down in the highly acidic environment of the stomach (pH ~1), research suggests otherwise.
A study by Machaon Diagnostics in the U.S. demonstrated that Nattokinase is acid-resistant and can survive digestion. Cardiovascular specialists confirmed that the enzyme remains intact as it enters the bloodstream, allowing it to deliver its intended systemic benefits effectively [2].
How to Take Nattokinase for Best Results?
Best time to take: Take it 30 minutes before a meal or 1 hour after eating. This helps the enzyme reach your bloodstream without being used up digesting food.
With or without food? Although Nattokinase can be taken with foods like rice, eggs, or butter, doing so may lessen its effectiveness. When consumed with meals, it may act more as a digestive enzyme instead of delivering full-body support.
One Amazon user, Ang, aged 53, reported positive effects after using a supplement containing Nattokinase, noting noticeable improvements in his well-being.*
Can it be combined with other supplements?
Yes, Nattokinase can be safely combined with other supplements. It pairs particularly well with enzymes like Serrapeptase and Lumbrokinase, offering synergistic benefits such as supporting cardiovascular health, enhancing circulation, strengthening immune function, and providing antioxidant support.
While Nattokinase offers promising benefits, it’s important to prioritize your safety. Always consult a healthcare professional before adding it to your routine—especially if you’re on medications or have existing health conditions.
This ensures proper dosage and helps tailor the combination of Nattokinase with other supplements to best support your overall well-being.
Learn more: How Much Nattokinase Per Day Should You Take?
Should You Eat Natto Instead?
Nattokinase supplements are a convenient alternative to traditional Natto, especially for those who find its strong smell, sticky texture, or taste off-putting.
While Natto—a fermented soybean dish from Japan—is naturally rich in Nattokinase and packed with protein, vitamins, and beneficial bacteria, it’s not always easy to find or consume regularly.
Supplements provide a standardized dose without the sensory challenges, making them a more accessible and consistent option for many people.
Precautions When Using Nattokinase
Avoid nattokinase if you have a severe allergy to it or any components (part or ingredient) that make up its Nattokinase supplement. You'll also want to avoid Natto if you have a soybean allergy.
Pregnant or breastfeeding women, children, and adults over 65 should use Nattokinase with caution as there's limited information regarding its long-term safety for these groups.
Individuals with blood disorders should only use Nattokinase with medical guidance.
Frequently Asked Questions
1. What are the disadvantages of nattokinase?
Nattokinase may increase bleeding risk, especially for those with bleeding disorders or before surgery. Its blood-thinning effects can lead to complications like excessive bleeding or unstable blood pressure. Always consult your doctor before use [4].
2. Should nattokinase be taken at night or in the morning?
It’s generally recommended to take Nattokinase in the evening or before bedtime, as the body tends to form more blood clots between midnight and early morning.
3. How long does it take for nattokinase to clean arteries?
It may take about 12 months of consistent use to see significant reductions in arterial plaque and wall thickness (Chen et al., 2022).
4. How long does nattokinase take to kick in?
Nattokinase typically starts working within 2 hours of taking it, with peak effects around 4 hours and gradual decline after about 8 hours.
5. Can nattokinase help with sleep?
Taking Nattokinase at night—similar to eating Natto—may support better brain circulation during sleep, which can promote deeper rest and help you feel more refreshed upon waking.
Conclusion
The numerous health benefits of Nattokinase make it an invaluable asset in the realm of nutritional supplements. Strategic consumption notably enhances its effectiveness. For optimal absorption and utilization, it is advisable to take Nattokinase on an empty stomach.
This ensures maximum efficacy and promotes a variety of health-supporting effects. However, individual responses may vary, and it is essential to consult a healthcare professional for personalized advice. As ongoing research uncovers the potential of this enzyme, it becomes clear that Nattokinase offers promising opportunities for personal health optimization.
References
- [1] Jamali, N., Vahedi, F., Soltani Fard, E., Taheri-Anganeh, M., Taghvimi, S., Khatami, S. H., Ghasemi, H., & Movahedpour, A. (2023). Nattokinase: Structure, applications and sources. Biocatalysis and Agricultural Biotechnology, 47, 102564. https://doi.org/10.1016/j.bcab.2022.102564
- [2] Jensen, G., Lenninger, M., Ero, M. P., & Benson, K. (2016). Consumption of nattokinase is associated with reduced blood pressure and von Willebrand factor, a cardiovascular risk marker: results from a randomized, double-blind, placebo-controlled, multicenter North American clinical trial. Integrated Blood Pressure Control, Volume 9, 95–104. https://doi.org/10.2147/ibpc.s99553
- [3] Kaur, R., & Sekhon, B. S. (2012). Enzymes as drugs: an overview. Journal of Pharmaceutical Education & Research, 3(2).
- [4] NATTOKINASE: Overview, Uses, Side Effects, Precautions, Interactions, Dosing and Reviews. (2022). Webmd.com. https://www.webmd.com/vitamins/ai/ingredientmono-1084/nattokinase
- [5] Chen, H., Chen, J., Zhang, F., Li, Y., Wang, R., Zheng, Q., Zhang, X., Zeng, J., Xu, F., & Lin, Y. (2022). Effective management of atherosclerosis progress and hyperlipidemia with nattokinase: A clinical study with 1,062 participants. Frontiers in Cardiovascular Medicine, 9. https://doi.org/10.3389/fcvm.2022.964977
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