None. its an advertising scam…I have seen supposedly ordinary people who lost 20 Lbs in 13 weeks…not much and I read the fine print..always read that!
It states so and so lost 20 or 30 lbs by following this diet but also coupling it with exercise so many times per week too.
My self I lost 80 lbs taking” Slim Fast Ultra”( faster) and that took almost 8 months nut I also was working three jobs and hiking on days off.
It stayed off for three years until I had an accident and could not exercise etc..gained some weight but not that much.
Later other complications..off work and no use of hands or wrists ( tendons) and gained weight on medical leave.
Still struggling now, but on “Slim Fast”
( no Ultra available , prob was a food hunger suppressant?)
Going hiking now that its Summer and feel energetic already after only two days of only having the slim fast for only replacing Breakfast.
I eat a normal ( light) supper.