Nutrient deficiencies can lead to debilitating fatigue, often leaving individuals confused about their lethargy. Common culprits include B vitamins, iron, magnesium, and vitamin D, which can significantly impact energy levels and overall well-being. Testing for these deficiencies can be a game changer, as evidenced by a personal experience with a B vitamin deficiency that transformed energy levels almost immediately. Understanding and addressing these deficiencies is crucial for better sleep and vitality.
