I agree with the consensus of opinion here in this thread in that you do not really know what you are talking about: the advice and comments you have made are incorrect.
For example, there is only one distinction between fasting and starving: in the former you are living from food reserves of all kinds and not just fat, whereas starvation is where these have run out or nearly so, and where the body will then begin to feed on itself; that is the internal organs. Fasting is constructive and beneficial to the body, whereas starvation is destructive.
If you investigate Yeos Physiology and losses in starvation, you will discover that the muscles and other vital organs are hardly touched; the nerves for example are not touched at all. Muscle loss in the fasting state is approx' 0.2 Kg per day as the bodys way of conserving protein. Dr Joel Fuhrman MD refers to this as "Protein Sparing"
The losses you refer to only occur in the state of starvation and NOT fasting.
Also even the thinnest individual has ample fat and other reserves to live off for anything up to 24 to 25 days in Dr Sheltons vast experience of fasting supervision.
It is true to say the females have more fat reserves generally than males
You are also confusing Anorexia with Anorexia Nervosa: the former being just loss of appetite which occurs for differing reasons such as illness or the onset of ketosis which is the bodys way of suppressing appetite/hunger on a water-only-fast. The latter is an emotional/mental state which needs treatment in a psychological way by health- professionals.
The length of a fast is determined by the reasons for undergoing one and the developments that occur during its course, but most anyone can fast safely and only with benefit, for up to 30 days and beyond.
Fasting not that effective at curing disease? means that the fast is a very useful tool to allow the body to self-heal and rid itself of toxemia, whether this is derived endogenously or exogenously. Most if not all diseases respond very well to self-healing and therfore the fast, and where sometimes one long fast is insufficient and after a careful period of refeeding another subsequent long fasts will finish this process.
"The jury is still kind of out on how good it is for other health problems".
Read up on the literature of fasting and especially the books by Dr Joel Fuhrman MD and you will discover the value of fasting in most all diseases.
Shorter fasts are less effective as the time allowed is insufficient to allow full healing and detox to take place.
Dry fasting is beneficial to a point, we just have to listen to our body in its wants and needs; if no water is called for then it is not needed.