She was 160 a year ago, today she is 149.
She is eating the same foods and quantities. She is a proud member of the clean plate club, most of the time. It used to drive me nutty, her having to finish every morsel and if at a restaurant would want a togo box for a few bites. Used to tell her just leave it, but it is a battle I don't need to fight. Now the containers come home and fed to the dog. I hate to guess how many aging, green togo boxes would be in the fridge.
Well. I'm picturing the expression of every doctor I know if I were to ask them about this exact situation, and every one of them would be looking at me quizzically and saying "…and?"
Just tell them you've got it under close observation. If that doesn't work, ask them what they'd like to recommend (with a sweet smile on your face, of course).
Is the guardian giving you grief about it? There's a slight feeling that this person is finding something to "fiddle with" as though it's just to show he or she is paying attention? If in doubt, report this to your mother's doctor - but mind out that he doesn't follow suit and start tinkering with her for the sake of it. I think you're right not to be overly concerned for now, just keep watch.
I know that if I were to serve her ice cream the weight would just pack back on. But lactose intolerance won't allow that. I'm not very concerned at this point, but maybe something like her chronic D she just is not absorbing nutrients because of AD? L9oking for others thoughts.
So you're not concerned about a loss of appetite, if she's eating the same foods and quantities? Keep an eye on her weight, then, report it if you're still worried, but this change doesn't sound a big deal to me.