Fiber, probiotics & enzymes
Nattokinase
An enzyme from natto, a Japanese fermented soybean dish. Taken for blood flow – studies are small. Ask a doctor first if you take blood thinners.
45 products from US online stores, sorted by what 100 mg of nattokinase costs – not by the price per pack.
3.5¢Lowest cost
per 100 mg nattokinase
- Prices checked Nov 1, 2026, US
- No paid placements
What does 100 mg mean?
- nattokinase per serving in most of the products we checked
- 100–200 mgnattokinase per serving in most of the products we checked
- 100 mg is about one serving: half of the 45 products we checked have up to 100 mg per serving, the other half more.
- There’s no official daily amount for nattokinase.
We compare by 100 mg only so products line up – it’s not a recommendation. Not medical advice.
Where products miss quality points
How the 45 products score
- Very good 90+: 0
- Good 75+: 44
- Fair 60+: 1
- Low under 60: 0
- have no seal from an independent testing program
- 100%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 6 whose label says “third-party tested”
The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.
We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works
Pack size
Compare packs of a similar size.
All sizes in one list can affect the results – big packs usually cost less per 100 mg. Pick a size above to compare packs that are alike.
45 products · cheapest per 100 mg nattokinase first
- Rank 1
BulkSupplements
Nattokinase
Powder
80Good qualityCountry not stated3.5¢per 100 mg
Lowest
- Pack
- $87.972,500 servings
- Nattokinase per serving
- 100 mg
- Pack lasts
- 2,500 daysif you take 100 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 2
BulkSupplements
Nattokinase
Powder
80Good qualityCountry not stated4.6¢per 100 mg
31% more
- Pack
- $45.97909 servings
- Nattokinase per serving
- 110 mg
- Pack lasts
- 999 daysif you take 100 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 3
BulkSupplements
Nattokinase
Powder
80Good qualityCountry not stated6.4¢per 100 mg
82% more
- Pack
- $31.97500 servings
- Nattokinase per serving
- 100 mg
- Pack lasts
- 500 daysif you take 100 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 4
Amazing Nutrition
Amazing Formulas Nattokinase 200 Mg (4000 FUs of Enzyme) per Serving
Capsules
85Good qualityMade in USA8.9¢per 100 mg
152% more
- Pack
- $15.99180 capsules90 servings
- Nattokinase per serving
- 200 mgin 2 capsules
- Pack lasts
- 180 daysif you take 1 capsule (100 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 5
BulkSupplements
Nattokinase
Powder
80Good qualityCountry not stated$0.10per 100 mg
184% more
- Pack
- $24.97250 servings
- Nattokinase per serving
- 100 mg
- Pack lasts
- 250 daysif you take 100 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 6
Vitamatic
Nattokinase
Capsules
80Good qualityCountry not stated$0.11per 100 mg
208% more
- Pack
- $12.99120 capsules60 servings
- Nattokinase per serving
- 200 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
vitamaticusa.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 7
Best Naturals
Nattokinase 100 mg
Capsules
80Good qualityMade in USA$0.11per 100 mg
215% more
- Pack
- $9.9990 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 90 daysif you take 1 capsule (100 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 8
Nutricost
Nattokinase, 100 mg (2,000 FU)
Capsules
85Good qualityMade in USA$0.12per 100 mg
254% more
- Pack
- $14.95120 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 9
Amazing Nutrition
Nattokinase
Capsules
80Good qualityMade in USA$0.13per 100 mg
282% more
- Pack
- $12.0990 capsules45 servings
- Nattokinase per serving
- 200 mgin 2 capsules
- Pack lasts
- 90 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 10
Nutricost
Nattokinase
Capsules
80Good qualityMade in USA$0.14per 100 mg
302% more
- Pack
- $16.97120 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 11
Primaforce
Nattokinase, 100 mg
Capsules
85Good qualityCountry not stated$0.15per 100 mg
326% more
- Pack
- $17.99120 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 12
Healthy Origins
Nattokinase, 100 mg (2,000 FUs)
Capsules
85Good qualityCountry not stated$0.16per 100 mg
342% more
- Pack
- $27.99180 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 13
Healthy Origins
Nattokinase 2,000 FUs
Capsules
80Good qualityCountry not stated$0.16per 100 mg
342% more
- Pack
- $27.99180 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (100 mg) a day
healthyorigins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 14
California Gold Nutrition
Nattokinase, Proteolytic Enzyme, 2,000 FU
Capsules
65Fair qualityCountry not stated$0.16per 100 mg
350% more
- Pack
- $28.49180 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 15
Double Wood Supplements
Nattokinase Supplement
Capsules
85Good qualityMade in USA$0.17per 100 mg
372% more
- Pack
- $19.95120 capsules60 servings
- Nattokinase per serving
- 200 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
doublewoodsupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 16
Probase Nutrition
Nattokinase
Capsules
80Good qualityCountry not stated$0.17per 100 mg
394% more
- Pack
- $20.87120 capsules60 servings
- Nattokinase per serving
- 200 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 17
Healthy Origins
Nattokinase 2,000 FUs
Capsules
80Good qualityCountry not stated$0.18per 100 mg
421% more
- Pack
- $10.9960 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
healthyorigins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 18
Probase Nutrition
Nattokinase Supplement
Capsules
80Good qualityCountry not stated$0.21per 100 mg
492% more
- Pack
- $24.99120 capsules60 servings
- Nattokinase per serving
- 200 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
probasenutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 19
NOW Foods
Nattokinase, 100 mg
Capsules
80Good qualityMade in USA$0.21per 100 mg
497% more
- Pack
- $25.19120 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 20
Arthur Andrew Medical
Nattovena - Pure Nattokinase
Capsules
80Good qualityCountry not stated$0.22per 100 mg
531% more
- Pack
- $39.9990 capsules
- Nattokinase per serving
- 200 mgin 1 capsule
- Pack lasts
- 90 daysif you take 1 capsule (200 mg) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 21
Codeage
Liposomal Nattokinase
Capsules
80Good qualityCountry not stated$0.25per 100 mg
610% more
- Pack
- $44.9990 capsules
- Nattokinase per serving
- 200 mgin 1 capsule
- Pack lasts
- 90 daysif you take 1 capsule (200 mg) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 22
NOW Foods
Nattokinase, 100 mg
Capsules
80Good qualityMade in USA$0.28per 100 mg
693% more
- Pack
- $16.7560 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 23
Nutricost
Nattokinase, 2,000 FU
Capsules
85Good qualityMade in USA$0.33per 100 mg
833% more
- Pack
- $9.8530 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 24
California Gold Nutrition
Nattokinase, Proteolytic Enzyme, 2,000 FUs
Capsules
80Good qualityCountry not stated$0.36per 100 mg
921% more
- Pack
- $10.7830 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 25
Source Naturals
NSK-SD, Nattokinase, 200 mg
Capsules
80Good qualityCountry not stated$0.38per 100 mg
980% more
- Pack
- $45.5960 capsules
- Nattokinase per serving
- 200 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (200 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 26
Natural Factors
Nattokinase, 100 mg
Capsules
80Good qualityMade in Canada$0.38per 100 mg
991% more
- Pack
- $23.0460 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 27
Source Naturals
NSK-SD, Nattokinase, 200 mg
Capsules
80Good qualityCountry not stated$0.40per 100 mg
1,033% more
- Pack
- $23.9330 capsules
- Nattokinase per serving
- 200 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (200 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 28
Swanson Vitamins
Nattokinase, 200 mg
Capsules
80Good qualityCountry not stated$0.41per 100 mg
1,069% more
- Pack
- $24.6930 capsules
- Nattokinase per serving
- 200 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (200 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 29
Source Naturals
Nattokinase, 100 mg
Capsules
80Good qualityCountry not stated$0.41per 100 mg
1,077% more
- Pack
- $24.8560 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 30
Source Naturals
NSK-SD Nattokinase, 100 mg
Capsules
80Good qualityCountry not stated$0.47per 100 mg
1,233% more
- Pack
- $14.0730 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 31
Swanson Vitamins
Nattokinase, 100 mg
Capsules
80Good qualityCountry not stated$0.47per 100 mg
1,235% more
- Pack
- $14.0930 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 32
Natural Factors
Nattokinase
Capsules
80Good qualityMade in Canada$0.53per 100 mg
1,413% more
- Pack
- $31.9560 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
naturalfactors.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 33
Source Naturals
Nattokinase NSK-SD
Capsules
80Good qualityCountry not stated$0.60per 100 mg
1,604% more
- Pack
- $35.9860 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
sourcenaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 34
Naturally Vitamins
Nattokinase 1500, Systemic Enzyme Supplement
Tablets
80Good qualityCountry not stated$0.62per 100 mg
1,662% more
- Pack
- $37.21120 tablets60 servings
- Nattokinase per serving
- 100 mgin 2 tablets
- Pack lasts
- 60 daysif you take 2 tablets (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 35
Nature's Answer
NSK-SD, Nattokinase, 100 mg (2,000 FU)
Capsules
80Good qualityCountry not stated$0.66per 100 mg
1,764% more
- Pack
- $39.3660 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 36
KAL
Nattokinase, 100 mg
Tablets
80Good qualityCountry not stated$0.73per 100 mg
1,977% more
- Pack
- $21.9330 tablets
- Nattokinase per serving
- 100 mgin 1 tablet
- Pack lasts
- 30 daysif you take 1 tablet (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 37
Allergy Research Group
Nattokinase, 100 mg
Softgels
80Good qualityMade in Japan$0.82per 100 mg
2,220% more
- Pack
- $48.9960 softgels
- Nattokinase per serving
- 100 mgin 1 softgel
- Pack lasts
- 60 daysif you take 1 softgel (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 38
Nutricology
NattoZyme Nattokinase, 100 mg (2,000 FU)
Softgels
80Good qualityMade in Japan$0.82per 100 mg
2,220% more
- Pack
- $48.9960 softgels
- Nattokinase per serving
- 100 mgin 1 softgel
- Pack lasts
- 60 daysif you take 1 softgel (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 39
Solaray
Nattokinase, 100 mg (1,250 FU)
Capsules
80Good qualityCountry not stated$0.83per 100 mg
2,258% more
- Pack
- $24.8930 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (100 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 40
Nature's Answer
Nattokinase NSK-SD - Veggie Capsules
Capsules
80Good qualityCountry not stated$0.83per 100 mg
2,268% more
- Pack
- $49.9960 capsules
- Nattokinase per serving
- 100 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (100 mg) a day
naturesanswer.com (opens in a new tab)Checked Nov 1, 2026 · Label
Good to know
- Fact
- 5,295%more per 100 mg for the most expensive product than for the cheapest.
- Fact
- 2,220%more per 100 mg for the cheapest softgels than for the cheapest powder.
How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check
The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.
How we calculate
Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.
Found a mistake or a product we should add? Email us