For those of you looking to maximize (or minimize) your caffeine consumption, CTV news presents caffeine concentrations in Canadian coffee:
| Brand | Caffeine mg/100 ml |
|---|---|
| Second Cup | 66.0 |
| Starbuck’s | 63.4 |
| Timothy’s | 45.9 |
| Tim Horton’s | 45.5 |
| Country Style | 39.2 |
via CTV News
Health Canada’s maximum recommended daily intake of caffeine is 400mg, which is approximately one 20oz cup of coffee from Starbuck’s or Second Cup.
Another recent study (I’ll see if I can find the link) showed that caffeine works better, and has fewer side effects, if it is given in low doses throughout the day, rather than as large doses (such as from a 20oz cup during your morning commute).
Conclusions are left as an exercise for the reader.