Introduction

Milk and dairy products contain significant amounts of nutrients that contribute to optimal health – nutrients like calcium, vitamin D, and high-quality protein. Fermented milk products or fermented dairy products are foods that have been fermented with certain bacteria. Yogurt is a fermented dairy product containing millions of beneficial bacteria. In this study, we will look at the effect of milk (a non-fermented dairy product) and yogurt (a fermented dairy product) supplementation on bone health and the amount of fat and muscle mass in Canadian young adults over a 24-month period. While dairy products contain significant amounts of nutrients, we do not know the impact of long-term supplementation of fermented (i.e., yogurt) or non-fermented (i.e., milk) dairy food consumption on bone health and the amount of fat and muscle mass in young adults. To fill this knowledge gap, we will recruit participants with low calcium intake and assign them to three different groups: 1) milk (intervention) group; 2) yogurt (intervention) group; and 3) control group. We will ask the participants in the milk group to drink 1.5 servings (375 mL) of milk per day for 24 months. Participants in the yogurt group will consume 2 servings (350 g) of yogurt per day for 24 months. Those in the control group will continue their usual diets. Using a randomized controlled trial design, we will measure bone health parameters, hormonal indices related to bone metabolism, body composition (e.g., muscle mass, fat mass), and the number and composition of bacteria living in the gastrointestinal (GI) tract. The data will provide valuable information for developing targeted health initiatives and marketing strategies regarding the benefits of fermented and non-fermented dairy product consumption.

Study Recruitment Poster

RCT poster

About Us:

Vatanparast Nutritional Epidemiology Lab:


VNEL logo

Dr. Vatanparast's Nutritional Epidemiology Lab (VNEL) is located in the University of Saskatchewan's College of Pharmacy & Nutrition. The Lab employs undergraduate Nutrition Students, Master of Public Health Students, and Biostatistics students to build capacity in upcoming research professionals. The VNELab focuses on research and health promotion initiatives targeting children's health and chronic disease. Dr. Hassan Vatanparast, the Head of the VNELab, is leading several projects at the local, national and global levels aimed to improve the nutritional health of the general population, newcomers, and Indigenous communities. The VNELab collaborates locally through the College of Pharmacy & Nutrition, School of Public Health, and other organizations, provincially, nationally, and internationally.

Who are we?


We are a team of researchers from the University of Saskatchewan, University of Idaho and Agriculture and Agri Food Canada(AAFC) with backgrounds in nutrition, epidemiology, kinesiology, pediatrics, and dentistry who study the role of milk and yogurt supplementation on bone health, body composition and gut health in Canadian young adults.

Team members

Investigators


Dr. Hassan Vatanparast

Dr. Hassan

Hassan Vatanparast is a Professor in the field of nutritional epidemiology at the College of Pharmacy and Nutrition and School of Public Health, University of Saskatchewan.

Dr. Phil Chilibeck

Dr. Phil Chilibeck

Phil Chilibeck is a Professor in the College of Kinesiology at the University of Saskatchewan.

Dr. Sandra Clarke

Dr. Sandra Clarke

Sandra Clarke is a Research Scientist in the field of Human Health and Nutrition at the Agriculture and Agri-Food Canada.

Dr. Adam Baxter Jones

Dr. Adam Baxter

Adam Baxter Jones is a Kinesiology Professor and an associate member of the Department of Pediatrics in the College of Medicine.

Dr. Marta Erlandson

Dr. Marta Erlandson

Marta Erlandson is an Associate Professor in the College of Kinesiology at the University of Saskatchewan.

Dr. Ginny Lane

Dr. Ginny Lane

Ginny Lane is an Assistant Professor of Nutrition at the University of Idaho and a registered dietitian.

Dr. Walter Siqueira

Dr. Walter

Walter Siqueira is a Professor and Associate Dean (Academic) at the College of Dentistry, University of Saskatchewan. Dr. Siqueira is considered an international authority in salivary diagnostics.


Students


Sidra Uzair

Sidra Uzair

Sidra Uzair is a PhD student at the College of Pharmacy and Nutrition who is assigned to this project.


Postdoctoral Researchers


Dr. Michele Monroy-Valle

Michele

Michele Monroy-Valle is a Postdoctoral fellow at the College of Pharmacy and Nutrition who is assigned to this project.


Staff


Mojtaba Shafiee

Mojtaba

Mojtaba Shafiee is a PhD candidate at the College of Pharmacy and Nutrition and a lab manager at Dr. Vatanparast Nutritional Epidemiology Lab.

Zoe Longworth

Zoe Longworth

Zoe Longworth works for the Vatanparast Nutritional Epidemiology Lab and fills the role of project manager for this project. She has a Bachelor of Science in nutrition and nutraceuticals sciences and a master’s degree in public health.

Funders


DFC logoAAFC logo

USask researchers have been awarded $900,000 by Dairy Farmers of Canada (Dairy Research Cluster 4) and Agriculture and Agri-Foods Canada (AAFC) to investigate the role of milk and yogurt supplementation in the development of osteoporosis and obesity.

Partner Organizations


usask osteo logoNational Newcomer Navigation NetworkIdaho Uni