'Healthy Body and Me' or 'Healthy Body and I' which one is correct ? It's actually a name of the blog so I appreciate for your advice and also if you could explain why. Thanks
It depends on the phrase you're shortening. As an object, you're saying "This blog will discuss topics about healthy body and me." As the subject, you're saying, "Healthy Body and I will be the focus of this blog."
The latter would be grammatically correct, but as a title for a blog, it just doesn't "sound" right for the casual readers these days. If you want my opinion for a non-nerdist blog, go with "Healthy Body and Me."