Research Studies

Grow strong bones!: A study to improve bone health in 14-18 year olds by increasing milk and milk-product intake.

*Recruitment closed*

For more information about this study

email: catherine.vanstone [at] mcgill.ca OR may.slim [at] mail.mcgill.ca
phone: 514-398-7527

Canada’s Food Guide indicates that milk and alternatives are important for your bones. It is said that calcium, a mineral found in milk and milk products, can help your bones grow strong and healthy.  Canadians 9 years of age and older do not usually consume enough milk and milk products to meet their needs. We are starting a study to see if eating more milk and milk products will help bones grow stronger.  Milk products include yogurts and cheeses.  This study will last for 2 years.


Vitamin D Status of Newborns Study

**Recruiting NOW!**

Contact us

This research study will examine if giving vitamin D supplements immediately after birth to infants, who are born with a low vitamin D status, will help them build muscle and to normalize growth by 3 months of age and maintain it up to 3 years of age, compared to a reference group of infants born with adequate vitamin D status.

 


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

*Recruitment closed*

This study is being done to test if adding vitamin D to cheese and yogurt products will help children further improve their vitamin D intake.  All children will be given a six month supply of the milk products.  One group will receive yogurt and cheese products already sold in stores, while the other group will receive yogurt and cheese products with added vitamin D.  This will show if milk products with added vitamin D help maintain vitamin D intake and child health.


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

*Recruitment closed*

Vitamin D intake in children in Canada is below what is recommended for them. This is because very few foods have vitamin D in them or added to them.  In Canada milk already has vitamin D added and we would like your child to continue to drink milk on a daily basis. This study is now being done to test if adding vitamin D to cheese and yogurt products will help children further improve their vitamin D intake.


MY LIFE Study for 6-12 year old overweight and obese children

*Recruitment closed*

Click here for more information about the MY LIFE study.

Children who are overweight or obese are at higher risks of developing health complications, inducing diabetes, high blood pressure and high cholesterol.  Compared to children with healthy body weights, overweight or obese children are thought to have weaker bones that may break more often.  There are some studies that suggest that overweight/ obese children should increase their milk consumption to reduce their risk of developing diseases and improve bone mass. In addition to increasing milk in the diet, activity is also promoted to help achieve a healthy body mass. The MY LIFE Study is a 1-year intervention study that focuses on lifestyle practices to reduce obesity in children 6 to 8 years of age.


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.


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.


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.


Conjugated Linoleic Acid (CLA) Study

*Recruitment closed*

Click here for more information about the CLA study.

The parathyroid gland and its hormone have a major impact on the endocrine control of bone metabolism and mineralization.  In some studies, high levels of parathyroid hormone have been shown to have an adverse effect on health.  Certain foods have dietary components, which may lower parathyroid hormone and improve bone health. Milk contains various types of nutritious fats including one called conjugated linoleic acid or CLA for short.  This fat has been shown to lower parathyroid hormone in animal studies.  Lowering this hormone with CLA could have important impacts on health and lead to new approaches in achieving optimal bone health.