As the vibrant colors of fall fade and the winter chill sets in, residents of Washington State, situated at a northern latitude, may find themselves longing for the warmth of the sun. However, beyond providing a comforting glow, sunlight plays a crucial role in the production of vitamin D within the human body. Despite spending ample time outdoors during the fall and winter months, many individuals in this region might still experience vitamin D deficiency. This phenomenon can be attributed to the angle at which the sun's rays hit the Earth's surface, particularly in regions with higher latitudes such as Washington State.
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| Areas north of 37°N latitude) face challenges in obtaining sufficient Vit D from sunlight alone. |
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