My Grace has lost some 25 lbs. in the last two years. She eats poorly most of the time. I try to give her small meals and fortified Ensure 2-3 times daily. Occasionally she'll eat ok but mostly moves food around in her plate. How does the caregiver deal with it?
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Try for high value items that are easy to eat -- scrambled eggs, add some beans to your meals, etc. In Memory care facilities, they weigh each resident every month. Declines in weight are evaluated and supplements added.