I was wondering who your intended audience is. You are using a lot of very long words that are not in the common vocabulary. I would be more specific and practically oriented.
I noticed on your blog on magnesium that you are making supplement recommendations without making reference to getting tested for deficiency. This would not be within the scope of practice of a personal trainer in the US. However, you do not have a completed profile, and you may have qualifications to do so.
What goes into a blog is a personal preference. To me, it is an opportunity for people to see me as a person behind the information and to expand on what I have on my website. I also tend to write about things that cannot necessarily picked up by just searching for a subject.
But, as said, it is more a matter of style.
I concur with Karin completely (vis a vis the question on supplement recommendations, scope of practice, intended audience, and reasons behind doing a blog)
The interface between the blog and the website are smooth and both have a nice slick feel. I did find the blog perhaps a bit impersonal in material, but Karen is right that what you are putting up there should be driven by whom you wish to reach. I would have liked not just information but connection. The writing style is breezy and informal and friendly, but the material is more textbookish. But of course, I am not conversant with the general style of UK blogging, and that may be what works for your audience.
I personally blog because I found that what I needed to communicate as a teacher went beyond what I could do within the hour or hour and a half on the mat. It is an exploration of the ‘jnana’ within the ‘hatha’. Why do you blog? Whom do you wish to reach? What do you feel really needs to be said? People are really busy, and there are so many words written“. the trick, and the really hard part, is to try to say something that will make people stop and read, and that will really help them think, or act, or feel.
As someone who has spent much of her professional life blogging (currently on behalf of a CrossFit and Taekwondo gym owner), I would say the biggest ‘gap’ in your current blog format is an About section or introduction to who you are as a trainer, your approach to fitness, etc.
As mentioned by others here, you have a lot of quality content, it just feels a little impersonal at times. I don’t mean this as a criticism – it takes months, if not years to learn how to actually connect with people through a blog. I’m still learning myself!
If you’d like to see an example of a current About page on a fitness-related blog, I recently helped launch a professional blog geared towards fitness and gym owners for MemberTracker: http://membertracker.io/blog/
Note that the first part of the About page introduces the reader to our approach and what the blog entails. Then it provides a brief introduction (with photos) of each member of our team.
Hope this is helpful!