A water diet, also known as water fasting, is a type of fast during which a person consumes only water and abstains from all solid foods and other beverages, including juice, coffee, and tea, for a certain period. Water fasting is a method of restricting food intake that has been practiced for thousands of years and has been used both as a religious and medical practice. The water diet has gained popularity recently due to its potential health benefits, including weight loss, improved digestion, and reduced inflammation. Studies have shown that water fasting could have health benefits, such as lowering the risk of some chronic conditions. However, human studies on water fasting are very limited, and it comes with many health risks and is not suitable for everyone. Drinking excessive amounts of water can lead to hyponatremia, which can be dangerous if not followed correctly. Therefore, individuals who are considering water fasting for any reason should consult with a healthcare professional first, especially those with underlying health conditions.