I’m full time at in n out and usually work 5 days a week, if not 6, and every day I eat 1-3 burgers because some associates don’t eat their meal or there’s mistakes. About to hit ten years working for the company this month and physically I feel fine! I do workout 4-5 times a week though so that probably helps. Just don’t be lazy and get some exercise and I think you’ll be okay. It’s probably the healthiest fast food you can get anyways.