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Research Studies

On this page:  MYLIFE Study for 7 and 8 year olds | Vitamin D2 versus D3 Study | Vitamin D of young children | Vitamin D Dose Response Study | Conjugated Linoleic Acid (CLA) Study

FAMILY Study: A study to improve bone health in 15-18 year olds by increasing milk and milk-product intake.

**Recruiting NOW!!**

For more information about this study click_here.pdf

email: catherine [dot] vanstone [at] mcgill [dot] ca OR may [dot] slim [at] mail [dot] mcgill [dot] ca

phone: 514-398-7527


D-KIDS Study PHASE 2: How much vitamin D is needed in milk products to support vitamin D intake and bone health in children? 

**Recruiting NOW!!**

For more information about the D-KIDS study PHASE 2

email: catherine [dot] vanstone [at] mcgill [dot] ca

phone: 514-398-7527


D-KIDS Study: How much vitamin D is needed in milk products to support vitamin D intake and bone health in children? 

*Recruitment closed*


MY LIFE Study for 6-8 year old overweight and obese children

*Recruitment closed*

Click here for more information about the MY LIFE study.


Vitamin D2 versus D3: Biological Equivalency Study for Infants

Recruitment closed

Click here for more information about the vitamin D2 versus D3 Study.

Breast milk contains very little vitamin D and the Canadian Paediatric Society as well as, Health Canada recommend that all breast fed babies should receive 400 IU of vitamin D per day. Vitamin D is important to develop strong bones, teeth and muscles for people of all ages.
There are two different types of vitamin D - vitamin D3 (animal form) and vitamin D2 (plant form). Almost all vitamin D supplements for infants at the pharmacy are vitamin D3 but most of the research has been done using vitamin D2. We wish to compare the two types of vitamin D supplements and see if the blood levels of vitamin D are the same in babies after taking one or the other.

Research Team

Principal investigators:
Sina Gallo P.Dt., R.D., M.Sc., Ph.D. (Candidate)
Dr H. Weiler, RD (CDO), PhD
Dr. Celia Rodd, MD, FRCPC

Graduate students:
Sina Gallo P.Dt., R.D., M.Sc., Ph.D. (Candidate)


Vitamin D Status of Young Children from the Montreal Region

Recruitment closed

Click here for more information about the study.

Vitamin D is important for bone health at any age. However little is known about the vitamin levels of Canadian children aged 2 to 5 years old and if they get enough from their diet and/or supplements. To know the answer to this we measure vitamin D in tiny blood samples from a finger poke and also determine how much vitamin D they consume from food and supplements. This information will help us establish if young children have enough vitamin D or if we need to create solutions to improve the situation.
This study started in June 2010 and will end in June 2011.

Research Team

Principal investigators:
Dr H. Weiler, RD (CDO), PhD
Dr. Celia Rodd, MD, FRCPC

Graduate students:
Thu Pham, MSc. (student)


Vitamin D Dose Response Study for Babies

Recruitment closed

Click here for more information about the vitamin D study.

Health Canada has said that all breastfed babies should be receiving a vitamin D supplement everyday of 400 IU. Vitamin D is made naturally in our bodies when our skin is exposed to sunlight during the spring and summer months. However, due to the long winters in Canada, and because we want to protect our infants from the harmful effects of the sun, we give them vitamin D drops instead. Despite these drops, Canadian studies are reporting that 20-80% of infants have very low vitamin D levels. We are curious about the amount that is currently being recommended and believe that higher doses may have a more positive effect on bone growth and development.
This study started in 2007 and will end in 2011.

Research Team

Clinical research coordinator:
Catherine Vanstone RN (OIIQ), MSc

Principal investigators:
Dr H. Weiler, RD (CDO), PhD
Dr. Celia Rodd, MD, FRCPC

Graduate students:
Sina Gallo P.Dt., R.D., M.Sc., Ph.D. (Candidate)


Conjugated Linoleic Acid (CLA) Study

Recruitment closed

Click here for more information about the CLA study.

Research Team

Clinical research coordinator:
Catherine Vanstone RN (OIIQ), MSc

Principal investigators:
Dr H. Weiler, RD (CDO), PhD
Dr. Gustavo Duque, MD, PhD

Graduate student:
Jason DeGuire MSc, PhD (Candidate)
e-mail: jason [dot] deguire [at] mcgill [dot] ca