Intake of regular soft drinks adds calories but diet colas don't. However, expert opinion says that diet colas are not the best alternative to regular soft drinks.
Drinking soft drinks to rehydrate after heat exposure might aggravate dehydration and kidney damage.
Drinking too much of diet soda and sweetened drinks is linked to a increased risk of depression, suggests research.
Having one or two servings a day of sugar-sweetened soft drinks has been connected to a 35% greater risk of heart attack or fatal heart disease.