Originally Posted by fiddy
While true, you will never get fat at 1.5k calories per day. My point was, by solely changing diet one person is not guaranteed to lose weight.
you wont get fat, but on 1.5k mcdonalds calories you will feel like shit.
and you are wrong, unless you are already at a calorie defecit then changing diet alone absolutely can cause you to lose weight. changing diet is also the single easiest thing you can do for your weight. its a lot easier to cut sugary drinks from your diet than it is to start burning a lot of extra calories every day.