I've noticed that many are using personal Facebook profile directly for blog postings. They post Blog posts directly on wall, even I did the same in the starting. The problem here is, the personal friends many not like these kind of updates from you,Starting they may appreciate your work but later they keep avoiding your posts. So, if you post your blog post you many not get that many likes/ comments.
So to clear all these head ache's I just created a Group "Bloggywood Foodies" on facebook and you can add/ send request by yourself to this group. You can post here, get likes and talk about food and stuff, thus you can avoid your personal friends from your foodie's.This is just a small help and requiest not more than that.
Love you all,