Recently I lowered my blood pressure to acceptable levels with a combination of

  - lower stress
  - DASH diet with low carbs in evenings
  - 1,5 grams Omega3 per day
  - lower salt intake even more

Haven’t tried isometric exercises yet. Drink low amounts of top quality coffee, haven’t tried ditching is as suggested elsewhere in this thread. As I’m low on animal proteins, getting 25grams of proteins per meal can be quite difficult.