Low energy often results from a lack of essential nutrients, poor nutrient absorption, or imbalances in the body’s systems, including hormones. Nutritional deficiencies can impact metabolism, immune function, and overall well-being. When left unaddressed, they may lead to chronic fatigue, mood changes, and a lower quality of life. Common deficiencies include low levels of B vitamins, iron, vitamin D, and magnesium. Identifying and treating these issues can help restore energy and improve daily functioning.