I do a combo of IP and alternative now. However, this is my second time on IP.
The first time I was on IP, I used 100% IP foods.
Then I moved and in my new location, we have clinic which is largely unmanned and doesn't store any product. This clinic is a doctor's office and the IP person is rarely there. I had some leftover IP food from my first time on the diet (and still using that - I did buy a lot) but much of that was restricted foods as my coach at my old home pushed the restricted goods because they taste better. She wasn't strict at all.
In my new location, I tried to be 100% IP but they lost my order the second week and it took days to get more soup (my staple).
Things did not get better. After losing my order, I looked at alternatives so I would have food. Started with a small order. I meanwhile tried to work with my IP clinic but they would get busy, would forget to return calls, so placed a larger order with nashuanutrition.
My rate of weight loss has been identical both times.


Both work exactly the same for me....the only difference? The price obviously lol