Blog can be very useful platform to market health products. That's because if SEO is done correctly, a blog post has a very high chance to rank on search engines, when that happens your blog will get a lot of traffic. When traffic comes, it is very likely that your product is sold. You can even create a content entirely based on your product niche
I believe a blog is helpful for marketing health products. It builds trust with informative, SEO-optimized content, showcases benefits, and engages audiences, driving conversions through authentic storytelling and targeted calls-to-action.
Nowadays I don't think so much, a few years ago maybe yes, but nowadays no longer, it has become obsolete, I recommend you directly one or several web pages, that is widely used today.