In a study of 30 unmedicated, non-smoking, borderline hypertensive men and women, the subjects were given a 20g dose of either the hydrolyzed whey protein isolate, BioZate 1, or the unhydrolyzed whey protein isolate control, BiPRO®, for a period of six weeks. The participants, who were not told which group they belonged to, were instructed to take their protein dose daily with water, while maintaining their normal lifestyle habits. They reported each morning for blood pressure checks, blood draws, side effect assessment, diet assessment and general monitoring.
The results showed a significant drop in both systolic and diastolic blood pressure after one week, which persisted throughout the study. Compared to the control, the hydrolyzed whey protein isolate group reduced systolic blood pressure 11mmHg, and diastolic blood pressure 7mmHg.