Vitamin D has long been recognized as one of the most essential nutrients for maintaining overall health, supporting everything from strong bones to a well-functioning immune system. Yet despite its importance, deficiency remains surprisingly widespread, particularly in countries with limited year-round sunlight. As a result, millions of people rely on supplements to maintain adequate levels of this vital vitamin. What many do not realize, however, is that supplementing incorrectly can carry its own risks.
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In recent years, pharmacists and healthcare professionals have increasingly emphasized the need for greater awareness
