Thanks to Chris for the heads up on this one.
Just briefly: Low fat, Mediterranean and low carbohydrate: Statistically significant reductions in carotid vessel wall volume for all of them, with no significant differences between groups, so long as you lose weight:
"with no differences in the low-fat, Mediterranean, or low-carbohydrate groups (-60.69 mm(3), -37.69 mm(3), -84.33 mm(3), respectively; P=0.28"
But the LC group lost more intimal vessel wall volume than the other two groups, even if this wasn't statistically significant. I've also not got access the information about what they mean by low carbohydrate. As we know this could be anything up to 150g/d in some people's book!
2010 could be a good year for LC and honesty!