Your weight and your wallet: The cost of weight gain

They say weight loss is an investment. Perhaps that's intended as some sort of uplifting figure of speech, but finances really do play a large role in weight management and fitness.

Believe me, I know. I've spent the last three years trying to lose the 50 pounds I put on while I was in college. It was a long, frustrating seesaw, but now I've lost those 50 pounds (and seven more), and I'm in the best shape of my life. I've also spent literally thousands of dollars getting to this point. No surgeries or expensive prescriptions -- just all the little expenses that come with the journey and add up over time.

Sure, losing weight is an investment, but it costs a lot to gain weight, too. Let's look at the costs of some unhealthy habits: