What is the definition of less nutritious?

Answer 1

Less nutritious is a mostly relative term, not a definite one.

If I had to attempt a definition I would say this:

" Less nutritious - providing less essential or healthy nutrients. Provding an imbalaced supply of certain nutients"

The reason I would add that last sentence is that alot of things the body uses are only "unhealthy" in amounts that are more or less than the body actually needs.