Caffeine consumption: Just how much is too much? By April Cashin-Garbutt Chocolate, coffee and cola are perhaps three of your preferred consumables; however, they are also three caffeine-rich chemicals which all donate to your daily caffeine consumption www.caverta.biz/generic-sildenafil-over-the-counter http://caverta.biz/generic-sildenafil-over-the-counter . Based on the BBC, people should not surpass 400mg caffeine a day, and this limit halves for women that are pregnant, that only 200mg/day is preferred. But just how much does 400mg correspond to really? From the table below we can see that it’s only 4 cups of instant espresso, or 10 cans of cola, or 16 pubs of milk chocolate.