Nattokinase 10,800 FU: Circulation & Heart Support
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Dose. Most nattokinase on Amazon is 2,000 FU. Ours is 10,800 FU, the dose used in a 12-month study of 1,062 adults. Some "high-dose" brands get to 10,000 FU by spreading it over three capsules and mixing in other ingredients. Ours is 10,800 FU of pure nattokinase in two daily capsules.
Because it's the one that matters. When a formula has eight ingredients, you're paying for seven things that aren't the enzyme, and every one of them takes up capsule space. We put the full studied dose in two capsules and left it at that.
Chen et al., published in Frontiers in Cardiovascular Medicine in 2022. Participants took 10,800 FU of nattokinase a day for 12 months. It's one of the largest and longest human studies of nattokinase, and it's where our dose comes from.
Not on day one. This isn't caffeine. Most people notice they feel less heavy and less drained within 3–4 weeks. The bigger shift, like easier stairs, longer walks, and afternoons without the crash, usually comes between day 30 and day 60. The people who notice the most take it every day for 60 days without skipping.
Two capsules a day with water, on an empty stomach. Same time every day matters more than the exact hour. One bottle is a 30-day supply.
Nattokinase comes from natto, a fermented soybean food that has been eaten in Japan for centuries. The study participants took it daily for a full year. If you're pregnant, nursing, on medication, or managing a health condition, check with your doctor first.
Then you don't pay. Take it for 60 days. If you don't feel lighter and more energized, email us and we'll refund every cent.
All orders are fulfilled and then shipped out in 1-2 working days on average. Worldwide shipping takes 4-12 working days, depending on location. All orders come with tracking information once shipped.
Nattokinase 10,800 FU: Circulation & Heart Support
How does it work?
Not another "heart supplement". The dose that was actually studied.
Real People. Real Results.
Excellent 4.8 / 5
Based on 5,496 Reviews
“By mid-afternoon I would feel heavy and tired even on days when I hadn't done much. I eat pretty well and stay active, so I had basically accepted that maybe this was just getting older. I've been taking Vuiea every morning and somewhere around week four I started noticing I wasn't thinking about my energy anymore. I was still getting things done at 4 or 5 instead of wanting to sit down. That's been the biggest difference for me.”
“I didn't wake up one morning feeling completely different. It was much more gradual than that. After about five weeks I went upstairs carrying laundry and realized I hadn't stopped halfway like I normally do. Then I started noticing the same thing on longer walks. I just feel lighter and steadier than I did before. I'm glad I gave it more than a couple of weeks.”
“There are so many nattokinase products that I honestly had no idea what I was supposed to buy. 2,000 FU, 4,000 FU, blends with a bunch of other ingredients... I kept going in circles. What sold me on Vuiea was how simple it was: 10,800 FU of nattokinase and two capsules a day. No giant ingredient list. I've been consistent with it because there's really nothing to think about.”
“I'm always skeptical when reviews make supplements sound like you take one capsule and suddenly feel 20 years younger. That wasn't my experience. The first couple of weeks I couldn't tell you anything had changed. Around weeks three or four, the afternoon heaviness started becoming less noticeable. By the second month, walks that used to drain me just felt like normal walks again. Much more gradual than dramatic, but that's exactly why I trust what I'm feeling.”
“I had already been reading about nattokinase before I found Vuiea, so I wasn't looking for someone to convince me to take it. I was trying to figure out which one. Once I saw the research using 10,800 FU, I wanted something at that amount without taking a handful of capsules or buying a big blend. Vuiea checked those boxes. Two capsules with water first thing in the morning and I'm done.”
“That was probably the moment that convinced me. We'd gone out for our usual weekend walk and when we got home my husband asked why I still had so much energy 😂 Normally that's when I'm ready to put my feet up for a while. I hadn't really noticed the change happening because it was gradual. I've been taking the two capsules every morning and plan to keep going.”
“I bought it because of the guarantee and told myself I'd actually give it the full two months before deciding. I'm glad I did. The first few weeks were nothing dramatic, but eventually I noticed I wasn't getting that same heavy feeling in my legs later in the day. I'm walking farther and my energy feels much steadier through the afternoon. For me, it's one of those products where you notice the difference in the things you're doing rather than suddenly “feeling” a supplement working.”