You can drink cola during menstruation, but if you drink it in excess, it may cause discomfort during menstruation, as well as lead to changes in the amount of menstruation and even menstrual disorders. Because cola is a carbonated beverage, it is easy to lose calcium, which can lead to calcium deficiency and cramps during menstruation as the blood is lost. There is also the fact that cola is very stimulating to the gastrointestinal tract, which may lead to spasms in the gastrointestinal tract after eating, resulting in pain and discomfort. Diet is very important during menstruation, as an unreasonable diet can affect normal menstruation. The intake of food needs to be moderate, avoiding excessive intake, which not only increases the burden on the gastrointestinal tract, but also aggravates abdominal discomfort during menstruation.