What does the fifth study cited (http://www.ncbi.nlm.nih.gov/pubmed/20670466 http://www.ncbi.nlm.nih.gov/pubmed/20670466 -- note that the link provided in the o

What does the fifth study cited (http://www.ncbi.nlm.nih.gov/pubmed/20670466 http://www.ncbi.nlm.nih.gov/pubmed/20670466 -- note that the link provided in the original post is wrong) have to do with carbohydrate-restricted diets? Carbohydrate restriction makes no appearance in the study.