Originally Posted by rickair7777

Not if you're young. But in the long run it will keep you from getting hired at any major airline, and might be a problem at the regional level when hiring is slow and they can be choosy. Also as you age it will increase your risk for a variety of ailments, including T-2 diabetes...test positive for that on your FAA medical and your career is permanently ended at that moment.

Airline pilots can have a tough time staying healthy on the road due to lack of access to good food and long days. The best thing to do is start improving your diet and exercise plan so you are already in the habit when you start the airline thing.