What works for me when going through this is to have a variety of food available and then to eat small quantities through out the day, sort of "graze".

I have a three spoonful deal with myself, in other words even if I don't feel good and my appetite is nonexistent - I at least get down three spoonfuls of yogurt or whatever - even if I can't finish all the food I prepped for myself.

Works for me also to just distract myself. Eat a little something while reading a good book, anything along those lines.

I know that if I don't eat enough and regularly all sorts of other symptoms get worse, so I make sure to at least keep myself fueled.