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Vitamin D & Immunity Across Canada: A Winter Health Guide for Vancouver Island Residents
Canada is known for its long, cold, and dark winters, and Vancouver Island is no exception. From coast to coast, residents face reduced sunlight exposure in winter months, which can lead to vitamin D deficiency and associated fatigue, weakened immunity, and seasonal health dips. Even though we live in a mild coastal climate compared to much of Canada, many Vancouver Island residents still struggle to maintain optimal vitamin D levels during the gray, rainy months.
Understanding vitamin D deficie
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Jan 13, 2026