Health Canada has mandated that milk and margarine producers increase the amount of vitamin D in their products to address the deficiency faced by one in five Canadians. The lack of sunlight exposure, especially during Canada’s winter months with shorter days and weaker sunshine, contributes to the vitamin D shortfall. This essential nutrient is crucial for calcium absorption, which is vital for bone and teeth strength and may also impact the risk of developing multiple sclerosis.
While vitamin D can be obtained from sunlight, dietary sources, and supplements, Health Canada’s recent regulation requires higher vitamin D fortification in milk and margarine to ensure more people meet the recommended daily intake. The initiative, which became mandatory on December 31, 2025, nearly doubled the vitamin D content in milk to five micrograms per cup and increased it in margarine to about 13 micrograms per 50 grams.
Health experts support this fortification strategy as a more equitable approach to enhance the population’s overall vitamin D intake. The revised regulation also applies to other dairy alternatives like yogurt and plant-based beverages, although fortification in these products is not mandatory.
Health Canada’s updated regulations anticipate doubling Canadians’ vitamin D intake due to these changes. The recommended daily vitamin D intake varies by age, with infants requiring 10 micrograms, older children and adults needing 15 micrograms, and older adults recommended to have 20 micrograms daily. While consuming multiple dairy products can help meet these requirements, supplements and other vitamin D-rich foods like egg yolks and fatty fish are also essential sources.
Although excessive vitamin D intake can have health implications, such occurrences are rare and usually result from prolonged high intake levels. Health Canada advises against exceeding 100 micrograms per day for adults to prevent adverse effects like excessive calcium buildup. Experts emphasize the importance of balanced vitamin D intake through various sources to maintain optimal health without the risk of adverse effects.