You're sending a double negative to half your audience with either definition of "diet". To a well-read person (the armchair scientist with some education, and above), the term "diet" is clearly defined. The diet is what an animal eats. Period. For the television-raised masses, the term "diet" means eating something different than what is normally eaten, for a period of time, to achieve a result. Not everybody has broken free of the brainwashing machine. Somebody who has grown up around a mom who is always on a new "diet" has no idea that they, themselves, are already on a diet, whether it's good or bad. And then you have to consider who is writing the word and who is reading the word. The back and forth about usage of the word is non-stop because there is no way to magically educate millions of people.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.