Kombucha is a fermented food meaning its rich in probiotics, which is a beneficial bacteria that plays an important role in maintaining gut health.
In a review of nine studies, eating probiotics was found to have a modest effect on high blood pressure.
More enhanced effects were noted when participants consumed multiple species of probiotic bacteria, consumed probiotics regularly for more than eight weeks, and consumed at least 100 billion colony-forming units a day.
Other examples of fermented foods include natural yoghurt, kimchi, miso and tempeh.
Bupa suggests some other changes to make in your diet to control blood pressure.
It advises: “Eat less sugar and saturated fat. Fruit and vegetables are a source of polyphenols – there is evidence these help reduce blood pressure.
“So do oily fish rich in omega 3 fatty acids, such as salmon, sardines and mackerel.
“Add more calcium and potassium to your diet, including low-fat dairy products and beans, peas and nuts as well as green vegetables and bananas.
High blood pressure can increase your risk of serious health problems including heart attacks and strokes, so doing what you can to maintain a normal reading is very important. Diet can have a big impact on a person’s blood pressure, with diets high in salt being a big contributing factor for a high reading. So making some changes to what you eat is one of the best methods of prevention, and can also help lower your reading.