Chloride deficiency occurs when the body lacks sufficient levels of chloride, an essential electrolyte that helps maintain fluid balance, aids digestion, and supports nerve function. This deficiency can result from excessive sweating, prolonged vomiting, or certain medical conditions that affect absorption. Symptoms of chloride deficiency may include muscle cramps, fatigue, and digestive issues. It is important to maintain a balanced diet that includes sources of chloride, such as table salt, seaweed, tomatoes, and olives, to prevent this deficiency and support overall health.