How do some people never gain weight?

Ayanna240
I work a sedentary job just like the rest of my coworkers. for some unknown reason, I just gain weight so quickly. I don’t eat a ton of junk food, but everytime I eat 2 slices of bread , my belly literally blows up and it won’t go away unless I starve myself (skip a meal ) but go workout for half an hour strenuous workout. I take a look at my coworkers and they buy chipotle , McDonald’s , fried foods , kfc, pasta maybe like 3 times a week AND THEY NEVER GET FAT. They are skinny. They never workout either

If I have a ham and cheese sandwich along with a buttered bagel, I will look soo bloated like I gained 8 pounds after the meal. Even if I don’t eat unhealthy , I will still end up looking fat if I don’t workout at least 3 times a week.
How do some people never gain weight?
3 Opinion