Lemon in the form of juice should be taken on an empty stomach for best benefits. Lemon is an excellent source of Vitamin C and contains minerals like calcium, phosphorus and magnesium along with carbohydrates and proteins. When taken on empty stomach. It helps flush out all unwanted toxins from the body effectively .Not only acts as blood purifies, it helps cure constipation. Lemon taken on empty stomach helps liver to produce bile for better digestion. If you have gall stones, then drinking lemon juice on empty stomach will help dissolve the stones and flush them out of your system. Drink a glass of lemon juice mixed with warm water on empty stomach everyday and watch the difference in your body.