Question: is 1 can of redbull a day bad?
Answer: While safe doses of caffeine vary by individual, current research recommends limiting caffeine to 400 mg per day or less in healthy adults ( 28 ). As one small 8.4-ounce (260-ml) can of Red Bull provides 75 mg of caffeine, drinking more than 5 cans per day could increase your risk of caffeine overdose ( 2 ).