Lemon contains high amount of Vitamin C. If you drink lemon juice, it will remove the toxins from the body. You should drink warm lemon juice first thing in the morning. Lemon juice helps in curing digestive diseases and it makes the bowel functions very smooth. The juice contains very less calories. It contains high amount of calcium, Iron, Vitamin A and pectin fiber. Lemon juice can kill the bacteria in the body due to its antibacterial properties. It makes the immune system healthy and cures infections. the juice has antiseptic properties. Lemon juice is very good for heart patients. 5 surprising health benefits of lemon juice are as follows.