 The study found that consuming milk and its proteins can reduce diastolic blood pressure in overweight adolescents. Casein, one of the main proteins in milk, showed the most significant reduction in diastolic blood pressure. Whey protein, another major protein in milk, had the opposite effect and increased diastolic blood pressure. This suggests that casein may be more effective than whey protein at lowering diastolic blood pressure in overweight adolescents. This article was authored by Keina Anberg, Ani Lankje, Kim F. Michelsen, and others.