There is currently no strong evidence to suggest that BCAAs (branched-chain amino acids) cause high blood pressure. However, some studies have suggested that high levels of BCAAs in the blood may be associated with an increased risk of hypertension (high blood pressure) in certain individuals.
BCAAs can affect the levels of certain hormones and chemicals in the body, which can impact blood pressure. Additionally, some BCAA supplements may contain high levels of sodium, which can also contribute to high blood pressure.
That being said, more research is needed to fully understand the relationship between BCAAs and high blood pressure. If you have concerns about your blood pressure, it's important to talk to a healthcare professional for advice. They can help you determine the underlying causes of your high blood pressure and recommend appropriate lifestyle changes or treatments.