Nattokinase 8000 FU - 60 Veg Capsules

Product Overview: Maximum-Strength Systemic Fibrinolytic Support

Think of your circulatory vessels like clear household water pipes. Over time, sticky protein debris can collect along vessel walls and slow fluid movement. Source Naturals Nattokinase 8,000 FU functions like a biological drain sweeper, dissolving excess protein mesh to keep blood moving smoothly. This ultra-potency formula provides 400 mg of standardized NSK-SD®, the world leader in purified Japanese fermented soy extract.

By dissolving microscopic vascular clutter, this systemic enzyme supports healthy blood thickness, smooth arterial circulation, and overall cardiovascular balance.

• ✓ Active Form & Potency: 8,000 Fibrinolytic Units (FU) from 400 mg of standardized NSK-SD® nattokinase per single capsule.
• ✓ Primary Target: Promotes vascular fibrin breakdown (fibrinolysis), healthy arterial elasticity, and normal blood flow viscosity.
• ✓ Supply & Value: 60 vegetarian capsules per bottle, providing a full 60-day supply of maximum-strength cardiovascular support.
• ✓ Purity & Dietary Status: 100% vegetarian, non-GMO, Vitamin K2-free, and formulated without gluten, dairy, egg, or synthetic preservatives.

Buyer's Guide: Why NSK-SD® Purity Matters

Why the Form Matters

Cheap supplements found in big-box retail stores frequently use crude, unstandardized natto powders. Many discount brands fail to measure or verify active Fibrinolytic Units (FU). Without standardized enzymatic potency, stomach acid quickly denatures the fragile enzyme before it reaches your bloodstream.

Source Naturals uses authentic NSK-SD®, developed by Japan Bio Science Laboratory. This patented fermentation process extracts pure nattokinase while removing Vitamin K2. Because Vitamin K2 promotes blood clotting, retaining it counteracts the clot-clearing actions of nattokinase. Generic formulas leave Vitamin K2 in the mix, compromising the circulatory benefits you want.

Is This Formula Right for You?

• ✓ Advanced Cardiovascular Seekers: Adults desiring clinical-strength vascular clearance and arterial compliance in a single high-potency daily dose.
• ✓ Active Agers & Frequent Flyers: Travelers and desk workers needing potent support for peripheral blood flow and microvascular circulation.
• ✓ Pill-Fatigue Reducers: Shoppers who prefer one 8,000 FU capsule over swallowing four standard 2,000 FU pills every day.

• ✗ Blood-Thinning Medication Users: Anyone taking prescription anticoagulants (such as warfarin, heparin, or aspirin) without direct medical oversight.
• ✗ Upcoming Surgery Patients: Individuals scheduled for dental or medical surgery within the next 14 days.
• ✗ Severe Soy Allergies: Individuals with medical allergies to soy fermentation derivatives.

Order with total peace of mind backed by VitaNet®, LLC's 31-year reputation and unconditional 100% money-back guarantee, allowing you to test digestive tolerance risk-free even on opened bottles[cite: 1].

How It Works in the Body

Imagine a sticky fishing net catching leaves and debris in a flowing stream. In your bloodstream, a web-like mesh of protein (fibrin) collects cellular debris to seal damaged vessels. When circulation slows, excess fibrin makes blood thick and difficult to pump.

Nattokinase functions as a specialized biological cutting scissor (serine protease). Once absorbed into your vascular system, it triggers a powerful two-way clearing process:

• 1. Direct Fibrin Cleavage: Nattokinase directly snips cross-linked strands of excess structural protein (fibrin), breaking them into harmless, microscopic waste pieces [1].
• 2. Activating Body Enzymes: It activates your body's native cleanup enzyme (plasmin) by boosting tissue plasminogen activator (tPA) while suppressing plasminogen activator inhibitor-1 (PAI-1) [1, 3].

Clinical human trials demonstrate that robust daily doses of nattokinase support healthy blood pressure and reduce circulating clotting proteins like fibrinogen and factor VII [2, 3]. Large-scale research shows higher daily intakes provide exceptional support for arterial wall elasticity and lipid balance [4].

Daily Timing, Synergy & Realistic Timelines

Best Time to Take

Take your capsule on an empty stomach with a full 8-ounce glass of water. If taken with food, the enzyme acts as a digestive aid, breaking down proteins in your food instead of reaching your bloodstream. Take it at least 30 to 60 minutes before a meal or 2 hours afterward.

Daily Schedule

Take your single daily capsule at night before going to bed. Blood flow naturally slows during sleep, and cardiovascular stress peaks in the early morning. Bedtime dosing guarantees peak enzyme presence during these vital nighttime hours.

Smart Pairings & Spacing

Pair nattokinase with Coenzyme Q10 (CoQ10) or Omega-3 fatty acids for synergistic blood vessel protection. Maintain a 2-hour window away from activated charcoal, bentonite clay, or heavy fiber supplements that could absorb active enzymes.

What to Expect Over Time

• ✓ Days 1–7: The enzyme enters the bloodstream within 2 to 4 hours of ingestion, initiating cellular uptake and early fibrin breakdown [1].
• ✓ Weeks 3–4: Consistent daily enzymatic activity stabilizes circulating fibrinogen, promoting microvascular flow and healthy extremity warmth [3].
• ✓ Months 2–3+: Long-term arterial support promotes supple vascular elasticity, healthy blood viscosity, and balanced blood pressure [2, 4].

Physical Feel, Sensory Traits & Clean Ingredients

Pill Format & Ease of Use

Each serving is delivered in an easy-to-swallow vegetable capsule that glides down smoothly with water. We advise against opening the capsule into juice or food; swallowing the capsule intact shields the delicate enzyme from stomach acid.

Natural Aroma, Taste & Color

Whole fermented natto has a pungent ammonia smell. Patented NSK-SD® undergoes careful purification to eliminate offensive odors, resulting in a clean, neutral scent. The encapsulated powder has a natural cream to light-tan hue without artificial whitening agents.

Other Ingredients Explained

• Microcrystalline Cellulose: Plant-derived wood pulp used as an inert filler to distribute high-potency enzymes evenly across capsules.
• Hydroxypropyl Methylcellulose (Capsule): Plant-cellulose shell that dissolves swiftly in the gut without animal gelatin.
• Magnesium Stearate: Plant-derived lubricant that prevents botanical powders from jamming high-speed encapsulation equipment.
• Silica: Natural mineral compound that absorbs ambient moisture to prevent clumping and preserve enzyme activity.

Proper Storage

Keep tightly closed in a cool, dry cupboard away from direct sunlight, stove heat, and steam. Avoid storing supplements in humid bathroom medicine cabinets.

Manufacturer Quality & Lab Testing Standards

Source Naturals maintains rigorous quality controls across all manufacturing processes within their in-house analytical laboratories:

• ✓ Heavy Metal Clearance via ICP-MS: Inductively Coupled Plasma Mass Spectrometry measures heavy metals—lead, cadmium, arsenic, and mercury—down to parts-per-billion (ppb) limits, meeting strict California Proposition 65 thresholds.
• ✓ Potency & Identity Testing via HPLC: High-Performance Liquid Chromatography confirms the chemical identity and guarantees the active 8,000 FU potency of each production batch.
• ✓ Microbiological Pathogen Screening: Automated bio-burden testing confirms the complete absence of hazardous microbes, including Salmonella species, Escherichia coli, yeasts, and molds.

These advanced internal laboratory validations protect you from the hidden contaminants, industrial fillers, and sub-potent raw materials common among bargain discount brands.

Complete Supplement Facts Panel

† Daily Value not established.
FU (Fibrinolytic Units) is a standardized measure of active enzyme potency.

Other Ingredients: Microcrystalline cellulose, hydroxypropyl methylcellulose (capsule), magnesium stearate, and silica.

Allergen Warning: Contains soy. Formulated with Vitamin K2-free NSK-SD®. Contains no yeast, dairy, egg, gluten, wheat, sugar, preservatives, or artificial color, flavor, or fragrance.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Scientific References & Clinical Studies

1. Kurosawa Y, Nirengi S, Homma T, et al. "A single-dose of oral nattokinase potentiates thrombolysis and anti-coagulation profiles." Scientific Reports, 2015;5:11601. PMID: 26109079.
2. Jensen GS, Lenninger M, Ero MP, Benson KF. "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, 2016;9:95-104. PMID: 27785095.
3. Hsia CH, Shen MC, Lin JS, et al. "Nattokinase decreases plasma levels of fibrinogen, factor VII, and factor VIII in human subjects." Nutrition Research, 2009;29(3):190-196. PMID: 19358933.
4. Chen H, McGowan EM, Ren N, et al. "Effective management of atherosclerosis progress and hyperlipidemia with nattokinase: A clinical study with 1,062 participants." Frontiers in Cardiovascular Medicine, 2022;9:964977. PMID: 36072877.

Frequently Asked Questions

Why must I take nattokinase on an empty stomach instead of with meals?

Nattokinase is a systemic protein-digesting enzyme. If consumed with meals, the enzyme acts as a digestive aid, breaking down proteins in your food. Taking it on an empty stomach allows the active enzyme to pass into your bloodstream to clear vascular protein debris.