Consumer Reports tested caffeine levels in different coffee brands to find out how much of a jolt you really get. The results? Caffeine levels vary dramatically.

While the maximum recommended caffeine intake equates to around three cups per day, this chain gives you all that and more in just one large takeout cup.

Add Yahoo as a preferred source to see more of our stories on Google. However, more caffeine isn’t always better. You may have heard of the recent Panera Bread Charged Lemonade lawsuits, with two ...