Hi, the first time I did the candida diet I initially lost lots of weight as well, I think I weighed about 96 pounds at one point. However, this time I have found the protocol on the forum very helpful because it shows which flours can be used to make bread which has helped keep weight on.
Also I think what has been most helpful is making sure that the snack I have after work contains some sort of protein and so I am not starving by the time it is dinner time. For example I will eat chicken goujons or chicken burgers with chapati, or sardine pate with crisp breads. All these can be made in bulk and spread out through the week to save on time.