Is there a substantial difference between low-calorie frozen dinners from the supermarket and the frozen dinners from Jenny Craig or Nutrisystem. Also does anyone know which of the two programs makes it easiest to maintain weight after you’re off the program?

The ready made low cal frozen dinners are low cal because they are very small portions.
You only need to eat smaller portions of your usual meal to lose weight. You do not need to eat any special food.<br/>
DR + Mrs Bears face