As winter approaches, sunlight decreases, and many people find it challenging to get enough vitamin D3 from natural sources alone. Vitamin D3 is a crucial nutrient we primarily absorb from sun exposure, but in the darker, colder months, supplements become an important option. Among these, cod liver oil stands out as a natural source of vitamin D3, also offering additional health benefits. Why Vitamin D is Harder to Obtain in Winter? Our primary source of vitamin D is sunlight