Hi
@Rosaerona
I know only too well how upsetting it is when your Mum will not eat. My Mum has had problems with not wanting to/not eating for almost 3 years. I tried every trick in the book, but to no avail. Mum has been in a CH for the last year, and they try hard but still cannot get her to eat. She is a bag of bones now and I really don't know how she keeps going. My worry is that she has nothing to draw on to fight infection etc. Not only that but the knock on effect is that Mum feels dizzy and she has no energy. Although not eating is a common trait of the illness, being malnourished makes Mum much more confused.
Mum was referred to a hospital dietitian and she admitted that if Mum doesn't want to eat, there is little that can be done. As has already been suggested here, she advised that Mum ate anything she was vaguely interested in (that would be cake!) whenever she fancied it. Also, in the same way as you can disguise extra veggies in toddlers' meals - boost anything that the PWD might be persuaded to eat with extra calories eg load mashed potato with butter, cream. cheese etc, extra sugar in tea, smoothies with some good calorific stuff mixed in. My Mum is also on 3 Fortisips per day. She just about hangs in there.
I particularly noted your comment about your Mum's constipation, as this was an issue mine has too. I think that when the body is subjected to long periods of not eating, it affects everything, and when any small amount of nourishment 'arrives' the digestion system just goes a bit screwy ... for lack of a better word and becomes very sluggish. Constipation is a regular occurrence. Old people seem to have a fixation with how often they 'go' and if they can't 'go' it worries them .... My Mum just could not reason that because she wasn't putting anything in, there was nothing to come out! Mum's GP has now prescribed a regular dose of lactulose on her medication list, and the CH adminster this on a regular basis - it seems to work.
Finally, be very aware of your Mum's behaviour when eating - if she eats better with company, or if she eats better left on her own. If certain times work, or if she will eat while she's watching TV for example. If she will eat more using a spoon, or if a particular bowl or plate works better for her.
It's trial and error - good luck!