Health Canada has mandated an increase in vitamin D content in milk and margarine to address deficiencies among Canadians. The move comes as research indicates that one in five Canadians lack sufficient levels of the “sunshine” vitamin, primarily due to reduced sunlight exposure during the winter months in Canada.
Brenda Hartman, a nutritional sciences professor at Western University, highlighted the challenge of synthesizing vitamin D from sunlight in Canada, especially during the winter. Health Canada’s decision to fortify milk with higher levels of vitamin D aims to combat this issue, given the country’s high latitude and limited sunlight intensity in winter.
Experts emphasize the importance of vitamin D for calcium absorption, which is crucial for bone and teeth health. In addition, studies suggest a link between vitamin D deficiency and the risk of developing conditions like multiple sclerosis.
While milk and other products have long been fortified with vitamin D, Health Canada’s recent regulation significantly boosts the amount of vitamin D in these items. The initiative aims to ensure more people meet the recommended daily intake of vitamin D, with milk now containing five micrograms per cup and margarine 13 micrograms per 50 grams.
By making vitamin D fortification mandatory, Health Canada aims for a more equitable approach to improving public health. The new regulation, effective as of December 31, 2025, enhances the vitamin D content in various products to help Canadians meet their daily requirements.
In addition to milk, yogurt, kefir, and plant-based beverages are permitted to include vitamin D, although it is not mandatory. Health Canada stresses the importance of vitamin D intake through diet and supplements to maintain optimal levels, especially for vulnerable populations and those with specific medical conditions.
To achieve the recommended daily vitamin D intake, Health Canada suggests varying allowances based on age. While milk remains a significant source of vitamin D, other foods like egg yolks and fatty fish also contribute to overall intake. Health experts advocate for a balanced approach to vitamin D intake to support overall health and well-being.
