Natto is an odorous, squishy byproduct of soy - formally an enzyme called nattokinase. According to Wired Science, this may be the latest preventative nutritional item that can help maintain cognitive fitness by interfering in the buildup of protein tangles.
Thus, it joins other suggestions including anti-oxidant berries, omega-3 fatty acids from fish and flax, teas, and cruciferous vegetables, plus exercise. Researchers at National Taiwan University led the scientific investigation.
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