How do I get my mother to stop feeding my dog?

I feel for you. I had the same problem when my father came to live with us. He loved our dog but he constantly fed him from the table. We never did that. We told him not to feed the dog because he has an illness that required a special diet. No amount of talking changed this and arguments ensued. During my father's mealtime we had to put our dog in another room so there was not a temptation to feed him. Also I think my father also gave my dog his medicine because he did not want to take it. When someone has dementia no amount of reasoning or explaining will work. Try putting your dog in another room when your mother is eating.

I agree with those above. Telling people who have dementia something is really only good for about 5 seconds and then they forget. There's really no point. You have to constantly supervise them to ensure they don't get hurt or into trouble.

I'd read a lot about what to expect down the road as she progresses, so, you'll have an idea what may come. It really is surprising. I hope you can find some help for your situation.

Asking, telling, and explaining don't work when someone has dementia. Or might work briefly but won't be remembered next time. Save your breath.

Preventing the undesired behavior, in this case feeding the dog, is better all the way around. Keep Dog away from Mother when Mother has food.

Condolences on your recent loss, and on your beloved pet's health issues.

Having Mom move in with you is a huge change in your routine. I think it will go more smoothly if you learn all you can about her condition, dementia. Nobody is born knowing how to cope with that huge challenge. I remember all the explaining I tried to do with my loved one in the beginning. I could have saved a lot of frustration for both of us if I had simply understood that that approach was no longer going to work.

Come here often. Hearing other people's experience can help you get up to speed faster.

That's a good plan - kennelling the dog.

Also your mom does have the right to do what she wants at her age - with her own pets, if she had any. The "rule" about being allowed to do whatever you want at that age applies only to YOURSELF. You are not "allowed" to cause harm to others. I have the right to eat my way to a heart attack, but I don't have the right to force feed someone else into one. I have the right to smash my own furniture to bits, but not someone else's furniture. I would try repeatedly reminding her that it's not her dog, it's yours, and that you set the rules for your dog.

But if that doesn't work, the kennel idea really does seem like a good one.

Could you put your pup in its kennel during mealtime and snack time? It may not cut the nibbles out completely, but it might help with the bulk of it.