Which is better for someone avoiding soy?

Flow. It is soy free, while aSquared nattokinase is derived from fermented soybeans and the label states it contains soy.

Is the aSquared supplement a better value?

Yes on cost per serving. aSquared is $29.95 at Walmart as of November 4, 2026, for 60 servings, about 50 cents each. Flow is $59.99 at Amazon as of November 4, 2026, for 30 servings, about $2 each.

Do they have the same nattokinase strength?

Both list 10,800 FU per serving. aSquared reaches it with 440 mg of nattokinase in 2 capsules; Flow lists 10,800 FU per powder serving.

Which gives more Vitamin K2?

Flow, at 180 mcg of MK-7 per serving versus 100 mcg in aSquared. Check with your doctor if you take a blood thinner, since Vitamin K interacts with warfarin.

Which lasts longer per container?

aSquared. One bottle is 120 capsules, or 60 servings at 2 per day. Flow's 362.87 g tub is 30 servings.

Is one worth the extra money?

Flow costs about four times as much per serving. That premium buys soy-free, non-GMO ingredients, more K2 and a powder form. If none of those matter to you, aSquared covers the same 10,800 FU dose for less.

Nattokinase Supplement - 10,800 FU Per Serving - 120 Capsules vs Flow Nattokinase (10,800 FU)

Buy the aSquared capsules if you want the lowest cost per serving and a capsule you can swallow with a meal. Buy Flow if you want a soy-free, non-GMO powder with more Vitamin K2 and no pill to take. The aSquared bottle is $29.95 at Walmart as of November 4, 2026, for 60 servings; Flow is $59.99 at Amazon as of November 4, 2026, for 30 servings.

Today the Nattokinase Supplement - 10,800 FU Per Serving - 120 Capsules costs $30.04 less at its best price.

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