To what extent do oats helps to reduce blood pressure ?

Very little..l: I don't think there's been a food that hasn't been pronounced really good or really bad for this or that. These fall into a few categories. Read it in this journal/paper, so it is true. Anecdotal, one or few people are convinced that it helped them, and expound it is good for all. And placebo effect, where trusted physician prescribes a rx for specific prob and it works--this is real 33% of time!