When comparing caffeine in diet coke vs. coke zero, Tasting Table found that Diet Coke has more caffeine. While Diet Coke has 46 mg per 12-ounce can, Coke Zero only has 34 mg per 12-ounce can.
Diet Coke and Coke Zero both have zero sugar and calories, and the ingredient lists are similar, too. Both consist of carbonated water, caramel color, phosphoric acid, potassium benzoate, aspartame, natural flavors, and caffeine (though you can buy caffeine-free versions of both—look for the packaging with gold accents). Pepsi Zero Sugar vs Coke Zero Sugar. I recently this week found out oh no I'm diabetic. So because of that I decided to stop drinking regular soda which I dranked a lot of to zero sugar. And over the week have tried both Pepsi Zero Sugar and Coke Zero Sugar out. And out of them I much like and prefer Pepsi Zero to Coke Zero. Case in point: When researchers from the School of Medicine at The University of Texas Health Science Center San Antonio compared the waistlines of diet soda drinkers against a group of non-diet 4k3J.coke vs diet coke vs coke zero
