I absolutely LOVE some of the Jenny Craig foods. But I am concerned that they have too many carbs and not enough protein (and fairly high sugars.) Pasta, potatoes and bread abound in their prepackaged meals.
Research shows that eating a higher proportion of protein results in more weight loss and less loss of muscle mass. For example:
I seriously wonder if JC is focused on what we overeaters typically consider "comfort foods."
I also wonder if they are trying to cut their own costs by using inexpensive ingredients. Chicken and beef cost a lot more than spaghetti. Some of the meals have incredibly small portions of meat.
I have found that I lose weight much faster if I replace one JC meal a day (like lunch) with a salad topped with equivalent calories of chicken, beef or salmon. When I did this, I lost a healthy 2 lbs./week. On the JC meal plan, I was stuck for almost 3 weeks at the same weight, and feel fortunate to lose 1 lb. a week.
I use My Fitness Tracker (much better than the JC tracker) to keep close track what I eat. It consistently indicates that the JC program puts me over on their recommended levels of carbs and sugars.
My two cents.