They aren't supposed to replace your lunch, the idea is that it reduces your random snacking on cake and other tasty fattening goodness by giving you something healthier to snack on through the day.
I also always assumed they were meant to last a couple of days if you "grazed" properly, but as mentioned, I nommed the lot in one go pretty much all the time. Honestly trying not to eat it all at once served as more of a distraction than trying to resist other chocolatey snackage.
I also always assumed they were meant to last a couple of days if you "grazed" properly, but as mentioned, I nommed the lot in one go pretty much all the time. Honestly trying not to eat it all at once served as more of a distraction than trying to resist other chocolatey snackage.