Testing Vegetable Powders for High Blood Pressure

St. Michael's Hospital, Risk Factor Modification Centre

If you have high blood pressure, you may be eligible to participate in a nutrition research study investigating the effect of vegetable components on lowering blood pressure. Vegetable powders will be provided to you, and you will be asked to consume them daily for 16 weeks. Powders can be mixed with a beverage or a meal, allowing you to easily obtain the same nutrients equivalent to 7-8 servings of fresh vegetables a day. Blood pressure, body composition and arterial stiffness will be assessed. You will have a greater understanding of your own heart health from these assessments, which are not typically available at your regular doctor's office. Must be able to travel to St. Michael's Hospital, located in downtown Toronto. You will be reimbursed for the transportation cost at each visit. Compensation of $120 for your time will be provided upon successful completion of all 6 study visits.

Your Impact

Participants are needed to explore the effect of specific vegetable components on lowering blood pressure and other risk factors for cardiovascular disease.

Eligibility Criteria

Male, Female

30 to 65 years old

Have elevated blood pressure (Systolic BP: 130-159 mmHg)

Not on antihypertensive medication

Must be able to visit St. Michael's Hospital (Downtown Toronto)

Study Tasks

consume vegetable powders
provide blood sample
complete questionnaires
blood pressure and other vascular outcomes monitored


This study has been reviewed and approved by the St. Michael's Hospital Research Ethics Board (REB# 17-291).


blood pressure

Activity and Time

Food and Drink, Health and Wellness

Clinical Trial


16 weeks total, 6 sessions

A screening session (1.5 hours) at St. Michael's Hospital is required to determine eligibility for the study.


Up to $120

Vegetable powders provided, equivalent to 7 servings vegetables/day for 4 months. Breakfast provided.


Transportation cost (TTC or parking) reimbursed at each visit

Study Address

30 Bond Street Toronto, Ontario, Canada, M5B 1W8

Posting date: May 17, 2019