Nourishing is a wider category than it usually gets treated as. During some stretches it means dry toast at three in the morning, because that is what stays down.
Food carries a lot of unearned guilt, and illness adds more of it — an entire audience of people with opinions about what you ought to be eating.
A better measure is how you feel a couple of hours later. Not virtuous. Steadier, or not. Your body answers that one on its own, and its answer does not need anybody else's approval of the meal.