The lemon is both a small evergreen tree and oval yellow fruit. The fruit is used for culinary and non-culinary purposes throughout the world – primarily for its juice, though the pulp and rind (zest) are also used, mainly in cooking and baking.Lemon juice is about 5% to 6% citric acid, which gives lemons a sour taste, and a pH of 2 to 3. Many lemon-flavored drinks and candies are available, including lemonade and lemon heads. Lemon is used as a beverage and an ingredient to some dishes to enhance its flavor. Lemon contains flavonoids a compound that contains antioxidant and anti-cancer properties
Lemon Nutrition
Lemon can help relieve many digestion problems when mixed with hot water. These include nausea, heart burn and parasites. Due to the digestive qualities of lemon juice, symptoms of indigestion such as heartburn, bloating and belching are relieved.Lemon, being a natural antiseptic medicine, can participate to cure problems related to skin. 
Lemon is a vitamin C rich citrus fruit that enhances your beauty, by rejuvenating skin from within and thus bringing a glow on your face. Lemon water is used in dental care also. If fresh lemon juice is applied on the areas of toothache, it can assist in getting rid of the pain.
The massages of lemon juice on gums can stop gum bleeding. It gives relief from bad smell and other problems related to gums .Lemon juice also has potassium, which the health benefits are that they help the brain and nerve cells. With the amount of magnesium it can help you treat other ailments such as asthma, colds, scurvy, fever and heartburn.
Lemon calories 100 gm of lemon contains:
Calories: 32
Protein: 9 gm
Carbohydrate: 8.7 gm
Phosphorus: 22 mg
Calcium: 40 mg
Vitamin C: 50 mg Along with these, lemon contains thiamin, niacin, copper, riboflavin, selenium, manganese, pantothenic acid and zinc.
Health tips for Lemon
Do not just remain oblivious to the gifts of nature such as this, for you should always try to make the most of them. So, make it a part of your daily routine to drink a glass of warm lemon water in the morning and then open your gateway to enjoy its health benefits.