Citrus fruits, including grapefruit, oranges, and lemons, have powerful blood-pressure-lowering effects. They are loaded with vitamins, minerals, and compounds that may help by reducing heart disease risk factors like high blood pressure.
A study with participants demonstrated that a daily lemon juice drink along with walking significantly reduced blood pressure, an effect that the researchers attributed to the citric acid and content of lemons.
Studies have also shown drinking orange and grapefruit juice may help reduce blood pressure. Although grapefruit and grapefruit juice can interfere with several common blood-pressure-lowering medications, so consult your healthcare provider before adding this fruit to your diet. It is always best to check with your primary healthcare.