Home » The normal diastolic blood pressure in a normal healthy adult human is Circulatory System MCQs The normal diastolic blood pressure in a normal healthy adult human is April 22, 2022 3 Views Q. The normal diastolic blood pressure in a normal healthy adult human is A. 80 mm Hg B. 60 mm Hg C. 90 mm Hg D. 110 mm Hg Answer: 80 mm Hg