What is the health benefit gained from fasting?

A Muslim's obedience to his Lord stems from his belief that Allah is wise in His legislation, and fasting was legislated by Allah so that we may become righteous. Fasting has many health benefits, including: resting the organs of the digestive system, purifying the blood, and consuming stored food and fats, which leads to a moderate weight loss. Fasting also removes harmful substances from the body, strengthens the immune system, contributes to reducing harmful lymphocytes, purifies the body of tumor cells, and lowers blood pressure and cholesterol. Some doctors utilize fasting to treat diseases such as heart disease, arthritis, asthma, and ulcers.