Do mental health people have objections to nutrition advice?

[NurseDiesel]

The reason I ask is that I answered a question from a young woman who was complaining of anxiety and moodiness, and I recommended some nutrition solution she could try - and I got a thumbs down! Now, I know, it was only one, no big deal. But I really was quite nice, and even if someone didn't agree, I didn't think there was any reason to thumbs down my answer.
So, I wanted to know if there was some kind of distaste in the mental health community for nutrition supplements or answers of this kind, or if it was just a fluke.

 

[SarahEM1]

She was probably so stressed that anything extra that she had to do was out of the question. If the food was in front of her, she would eat it and be thankful.
I suffered from anxiety myself before I was treated. It's difficult to concentrate, also.