Broccoli
It is well known that broccoli has many health benefits, including for your circulatory system. For example, adding this cruciferous vegetable into your diet can be a good decision to lower blood pressure.
Flavonoid antioxidants found mainly in broccoli may help decrease blood pressure by enhancing blood vessel function and increasing nitric oxide levels in the body. According to one research including data from 187,453 participants, those who ate four or more servings of broccoli per week were less likely to have a high blood pressure than those who only ate it once a month or less. It also boasts more protein than most other vegetables.