Was on the IP diet for some time along with others and although there was weight loss the food was too expensive, too restrictive, health conditions occurred, and the company didn't seem truthful about certain things.
People had: kidney stones, kidney pain, hair loss, gout, diverticulitis, elevated liver enzymes. Also, people who had eating disorders in the past when they got off the diet had more complications after and it is speculated it was due to the calorie restrictions being too severe.
The company said they made the food and were the only ones with it, but several other places had it. Mattol for one had the food and they are a MLM company, another metabolic diet place had some of the food and sold it for half the price.
Some of the products were not being shipped to centers and the reason the company gave was slim fast was tainted and the FDA was making it harder to get IP products into the country. Funny thing there was no mention in the press about tainted Slim Fast products at the time or since!!!!