The infographic also describes the negative effects of caffeine, but these are not unique to soda. "Any food/beverage with caffeine or other stimulant will dilate the pupils, raise blood pressure and increase the amount of glucose that is temporarily in the bloodstream," said Julie Kennel, a registered dietitian and clinical assistant professor at The Ohio State University. "This is the typical 'fight or flight' response."
What's more, a single can of Coca-Cola contains about 39 milligrams of caffeine, less than the 100 mg of caffeine in an 8-ounce cup of coffee.
The infographic says that phosphoric acid in soda promotes the loss, through urination, of nutrients, including calcium, which is important for teeth and bones. Mangieri said that there is a link between high soda intake and an increased risk of fractures, but this could be because people who drink a lot of soda may also drink less milk. Phosphoric acid is also found naturally in other foods, like meat and dairy products, she noted.
Still, there are many reasons to avoid drinking a lot of soda. These beverages have no nutritional value, don't do a good job of keeping you full, and can replace other healthy foods and beverages such as milk, Mangieri said. "There are a lot better ways to get your calories" than by consuming 39 grams of sugar in one beverage, she said.
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