This little known super nutrient may help prevent stroke help your brain fight off Alzheimer’s and may even help with long Covid. In vitro studies indicate that it may be able to break up COVID spike proteins which may be a cause of long Covid. #DrShintani. #shintani #nattokinase #strokeprevention. #Lowerbloodpressure. #Hypertension. #Alzheimersprevention. #LongCovid. #Covidspikeproteins. #Natto