It is important to encourage a loved one, instead of pressuring. There may be a variety of reasons someone isn’t interested in eating, including treatment side effects.
Sometimes when asked ‘what would you like?’, the question is too large and not specific enough. Try listing a couple of options for them to choose from or brainstorm together by looking at recipes in a book.
The space where a person eats can also play a role in a person’s appetite so consider what might make the table more relaxing to help encourage better intake, or perhaps eating socially when able.