Medifast tends to be soy based and I didn't care for the taste - it gave me indigestion, but I believe this is because I am sensitive to soy products (didn't know that before I ordered but found out quickly). It is also more expensive than the other plans.
New Lifestyle is the same product as Wonderslim, just packaged under a different name. Both are manufactured by Robard. I stopped using their products as Hamilton was charging me a shipping fee (and tax) and I found the product cheaper elsewhere.
I moved on to Diet Direct and have been very happy with them and their products. They now offer a rewards and a referral program, which really makes a difference each month.
Good luck to everyone in their weight loss goals!
Last edited by PersistentA; 12-17-2013 at 04:31 PM.