What will my doctor say about these treatments

He or she may not be interested.
You may be asked for published articles about the treatments in peer-reviewed medical journals. If those articles exist, you will most likely be told that if the treatments in question were effective, the FDA would have approved them; if a treatment is not approved, it cannot be a good and beneficial therapy.
The trouble with this answer is that obtaining FDA approval takes many years and can cost several millions of dollars for clinical trials. The simple fact is that there is no money to spend to do these trials on treatments that are often un-patentable and therefore unprofitable.
As far as publishing is concerned, it is against the policy of all mainstream medical journals to publish any research coming from other than allopathic (mainstream) sources.
Many of the treatments described in Natural Cancer Treatments belong to categories that do not fall under the jurisdiction of FDA approval, and are not regulated by them. It is not common knowledge that many such therapeutic categories exist. For example, none of the medications used by homeopathic and naturopathic doctors are regulated by the FDA..
Chemotherapy drugs are regulated by the FDA and you may well ask the question,
'If chemotherapy is not only harmful, but has been statistically shown to be almost useless, as indicated in How Successful are Conventional Cancer Treatments? and by many others like Ralph W. Moss in Questioning Chemotherapy, then why does my doctor insist that I should take it?'
You should ask your doctor that question.