It's not that complicated. "Nutritional" means "pertaining to nutrition".
"Nutritious" (note the spelling) means "containing things that are
beneficial from a nutritional standpoint", i.e., "good for you".
No, it's simpler than that, the two adjectives just have different meanings.
"Nutritional" means "having to do with nutrition".
"Nutricious" means "jam-packed full of nutrients".
Therefore, to be nutricious is to have nutritional value.
Surely "nutritious", rather than "nutricious"?
Polar
Of course. I'm afraid I completely missed that mistake. As soon as I saw
someone else's correction, I began to wonder whether it had been a trick
question.