22 Health Benefits of Lemons Restore pH, detoxification, cleaning, acne, dental, cold and flu, fatigue, anxiety, weight loss, get rid of parasites, indigestion and constipation, halitosis, bug bites, pain relief, corns and calluses, asthma, fever, canker sores, varicose veins, nausea & travel sickness, osteoporosis, high blood pressure & cholesterol