Question: how many cokes are too many?
Answer: However, you would need to drink more than six 12-ounce (355-ml) cans of Coke or four 12-ounce (355-ml) cans of Diet Coke per day to reach this amount. Summary 400 mg of caffeine daily is considered safe for most adults, but cutting your intake to 200 mg daily can help reduce your risk of adverse side effects.