Downvoted. You understood what was meant, yet chose to 'win the argument' instead of helping correct the wording to make it easier for others to understand.

Example of proper clarification:

"Over time, consuming fewer calories than you burn can make a relatively large difference in your body weight. For example, consuming 100 cals/day less than you burn will yield a ~10 lb body mass decrease per year."

And yes, this is quite sufficient to kill most people within ten years.