While lemons have health benefits and medicinal uses, lemon juice cannot stop menstruation. Lemons and other citrus fruits are a source of vitamin C, which helps the body absorb iron.
Women suffering from heavy menstrual periods often also suffer from anemia. Drinking lemon juice when taking iron supplements or eating iron-rich foods increases iron absorption and helps relieve anemia symptoms.
The National Center for Complementary and Integrative Health reports that taking vitamin C regularly, at least 200 milligrams daily, helps reduce cold symptoms and shorten the length of the illness. Because lemons are a source of vitamin C, drinking lemon juice daily may help bolster the immune system.
One fluid ounce of lemon juice provides 23 percent, or 15 to 21 milligrams, of the daily recommended amount of vitamin C.