100g of anything you eat is 300kcal to 400kcal. your basal metabolism usually requires 1600kcal to 2200kcal per day, based on your weight, just to exist. mcdonald's big tasty burger is 1000kcal(bigmac is 550kcal), about half of your daily calorie requirement and won't even make you feel full. in other words, it is REALLY hard to not consume more calories than you need and not get fat.
UI/UX people want to actually do something innovative that people might actually like and use? Give us a couple programmable buttons on the side of the phone that are recessed enough to not get activated by keys in your pocket. Maybe we can even call them something like, 'function buttons' and label them with an 'F' or something and then number them so they can be recognized at a glance. I know it's innovative and has never been done before but I have confidence it can be done.
@Tfmonkey Latest version with all the newest AI accoutrements (Low quality 480P to keep the file size under the limit here)