The "scary" impact of high-caffeine diet pills on the human body
We've been investigating the issue as part of our #DyingToDiet campaign
Experts have told Hallam it's "scary" the amount of caffeine people are consuming - by taking diet pills they've bought online.
All week we're highlighting the danger of buying slimming pills on the web in our campaign #DyingToDiet.
Earlier this week Sally Foster, from Barnsley, told us she ended up in A&E after taking a pill doctors said contained the equivalent caffeine of 100 shots of espresso.
Hallam's Ben Bason's been investigating the effect a lot of caffeine can have on your body in a lab at Sheffield Hallam University...