Low magnesium levels can occur due to various factors. Inadequate dietary intake is a common cause of magnesium deficiency. Diets high in processed foods, refined grains, and low in magnesium-rich foods such as leafy green vegetables, nuts, and seeds can contribute to low magnesium levels. Certain health conditions such as gastrointestinal disorders (Crohn's disease, celiac disease), kidney disease, diabetes, alcoholism, and malabsorption disorders can also impair magnesium absorption or increase its excretion, leading to deficiency. Medications like diuretics, proton pump inhibitors (PPIs), and certain antibiotics may also interfere with magnesium absorption or excretion. Additionally, factors like high stress levels, excessive sweating, and intense physical activity can increase magnesium requirements. It's important to address the underlying cause of low magnesium levels and work with a healthcare professional to develop an appropriate treatment plan, including dietary modifications or supplementation if necessary.