Where is the advice to avoid milk and sugar? Does she have problems with lactose or is she a diabetic? If there are complications in feeding you definitely should be getting advice from a dietitian. Cutting back on one thing or another can leave her short on nutrition at a time when the body needs it most.

Cheers, Dave (OzMojo)
19Feb2014 Diagnosed T2N2bM0 P16+ve SCC Tonsil.
31Mar2014 2 Cisplatin, 70gy over 7 weeks (completed 16May2014)
11August2014 PET/CT clear.
17July2019 5 years NED.