What Are the Four Stages of Vitamin Deficiency? A Comprehensive Guide
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4 min read
According to research from the National Institutes of Health, micronutrient deficiencies affect billions of people worldwide. Understanding what are the four stages of vitamin deficiency is crucial for recognizing the progression from a subtle nutritional imbalance to a serious health condition. The development of these deficiencies follows a predictable, escalating pattern that begins long before any noticeable symptoms appear.