What is Lemon? What is Lemon good for? All fruits are good for health but some have a better a nutritional value as compared to others. Filled with essential nutrients, Lemon fruit acts as a remedy for various health problems. Some of the Lemon Benefits are: kidney stone treatment, prevents constipation, purging blood, treatment of rheumatism, arthritis treatment, asthma treatment and cancer prevention and its general health benefits are: boosts immune system, cures headache, cures fever, digestive aid, flu treatment, maintains healthy cholesterol level and treatment of common cold. It can also be used for nourishment of skin and hair. Some skin benefits are heals sunburn, reduces wrinkles, skin rejuvenation, treatment of acne and treatment of skin diseases and hair benefits are prevents hair loss and treatment of dandruff. If this fruit is consumed in excess or if you are intolerant, you might experience some side effects or allergies. Lemon side effects are: diuretic effects, heart burn, tooth decay and chances of sunburn and its allergy symptoms are eczema, hives, inflammation, itching, skin rash and swelling. Keep reading to get all the necessary information about Lemon.