For example (made up scenario), I own a company in the supplement niche. I really want to rank for vegan supplements, and mainly that.

If every single blog post I wrote was about vegan supplements, e.g. are vegan supplements good for you, do vegan supplements have a carbon footprint, why are vegan supplements better, would I be negatively impacting my SEO?

In my mind, it will be good for SEO, but don’t know if that’s me being naive