Hi Peggy — I think you should be fine using your own protein shake. There are many reasons that I love Nutrisystem, but these are the biggest factors that make it my top-rated weight loss program: I am only on my second day of Lean 13 and after comparing the Turbo Shakes with the protein powder I was using before, I noticed that mine was lower in calories, fat, sugar, and carbs and higher in protein by quite a lot. I made some raspberry coffee and chilled it. Thanks for the great info and for sharing your story! So she has a long way to go. I am planning to start Nutrisystem after the New Year.
Other rat studies show increased levels of the neurotransmitter serotonin. This could theoretically lead to reduced appetite and cravings (2).
There are actually a whole bunch of studies in rats showing that Garcinia Cambogia consistently leads to significant weight loss (3, 4, 5, 6). However, what works in rats doesnt always work in humans.