This study is a single-blind, placebo-controlled trial. Thirty-one subject with grade-1 HT, without concomitant
diseases, who required no antihypertensive or lipid-lowering drug therapy, who were recruited from primary care clinics,
completed the trial. Subjects entered a 4-week placebo period, then an 8-week treatment period with tomato extract, 250 mg
Lyc-O-Mato, and a 4-week control period with placebo.