He eats a ____ diet.
How can an inaminate "diet" have health. Can it become ill? Will it recover? Is not "healthful" appropriate here?????
You make no sense weird person. He eats a 'healthful' diet makes no sense.
i'm little confuse
How can a person eat a diet, whether healthy or not? You eat food; you follow a diet.
to eat or not to eat?! It doesn't matter. Healthy, yes. Healthful, too, I think; it means health-giving, good for health.