New Lifestyles uses corn syrup solids
and partially hydrogenated oils
That was enough for me to steer clear.
I've tried Medifast, which is better quality than NLD because they do not use the above three ingredients, and I found the food to be very tasty and the diet easy to follow. However, I quit Medifast because I did not think the cost was worth it when I can create my own low-cal, whole food program, pre-measured into 6 small meals/day, which yields the same results.
I have also tried nutrisystem and actually *gained* weight on it the first month because of all the sodium, soy, and preservatives and it made me *very* bloated. So I quit after one month.
Hope this helps.