Most types of regular sodas contain high amounts of sugar and caffeine. Diet soda replaces the sugar with artificial sweeteners, such as aspartame. All soda contains carbon acids and phosphorus.
Consuming excessive amounts of soda can be deleterious to health. Diets that are too high in phosphorous can deplete the body of calcium and magnesium, while carbon acids can increase the acidity of blood. The caffeine in soda causes increased urinary secretion of calcium, leaving less calcium in the body.
When drinking soda, a person takes in sugar at a rate of approximately 3 grams per ounce. In addition to being bad for dental health, the high amounts of sugar found in regular soda offer empty calories that lead to weight gain and can even cause diabetes.
Although diet sodas are free of sugar and typically low in calories or even calorie-free, the artificial sweeteners used in them may increase food cravings and encourage weight gain.
A 12-ounce can of Coca-Cola Classic soda contains 140 calories, 39 grams of sugar and 45 milligrams of sodium with no fat or protein. A 12-ounce can of Diet Coke contains 0 calories, 0 grams of fat and 0 grams of carbohydrates. Aspartame is used as a sweetener.