what? this is entirely made up/false

a diet doesn't mean starving yourself, it means have balanced nutrition that doesn't rely on fast carbs, if you burn 2000cal a day for example you still eat 2000cal but not in sugar/fast carbs but adequete protein, fats, and high fiber/slow carbs; insulin resistance is the biggest reason people will feel that hunger right at the start but once your body starts gets used to the slower carbs that don't constantly spike your insulin the resistence goes down

a lot of time it seems like people absolutely don't track what they eat or sort of tell lies to themselves (this doesn't include people with illnesses that impacts their metabolism)

once you start doing a medium amount of working out, just going for 30min walks everyday, you will start to build some lean muscle which will increase your base metabolism and this is where the weight loss kicks in