To put that in perspective, if you ate an extra 130 calories of food ... accurate the power output will be. Mikael Mattsson: The power output needs to be calibrated probably way more often than ...

Supermarkets, large cafes, restaurants, and takeaways with more than 250 staff have been legally required to display the calorie count of all food and soft drinks in stores and on their menus ...

Though many of its features do supplement the most basic ... reading is as accurate as possible. Unfortunately, that's as detailed as Apple gets in explaining how its calorie counter works.