Here's another paleo diet study: Beneficial effects of a Paleolithic diet on cardiovascular risk factors in type 2 diabetes: a randomized cross-over pilot study It's from Lindeberg's research group but I'll refer to this one as Jonsson (lead author) to distinguish it from the others.
In a randomized cross-over study, 13 patients with type 2 diabetes, 3 women and 10 men, were instructed to eat a Paleolithic diet based on lean meat, fish, fruits, vegetables, root vegetables, eggs and nuts; and a Diabetes diet designed in accordance with dietary guidelines during two consecutive 3-month periods. ... Study participants had on average a diabetes duration of 9 years, a mean HbA1c of 6,6% units by MonoS standard and were usually treated with metformin alone (3 subjects) or metformin in combination with a sulfonylurea (3 subjects) or a thiazolidinedione (3 subjects). Mean average dose of metformin was 1031 mg per day.
The paleo diet outperformed the diabetes diet, but that is not the purpose of this post, rather to show the composition of the paleo diet tested and add it to my summary table of same. Here are the diets compared. As with Lindeberg before this, we have a significant caloric difference between the tested diets that makes comparison difficult.
I would note that while this is a higher fat diet by percentage, at 39% we really are talking about the SAD in practice. However at the caloric levels we're talking, the absolute fat intake amounted to 68 g (vs. 72g for Dia) while the saturated fat intake was only 19 g (vs. 27 g for Dia) which amounted to only 11% of total calories -- close to the standard target for conventional LF diets.
At right are the foods for just the paleo diet. The one thing that stands out to me (and this is a recurring theme) is that there is higher fruit consumption than we hear even recommended by most of the popular paleo diet plans that tend to favor non-starchy veggies. Also, the veggies included root veg (other than potatoes) such as carrots. To me, the total meat consumption amounts is less than expected totalling roughly 8 oz., with about 3.5 oz of fish which isn't a whole lot when compared to what we're told many paleos eat.
Below is the expanded summary table of paleo diets.
I don't think I've ever posted the diets from the Lindeberg studies ... or rather study. There are two fairly frequently cited papers from data that came from a single dietary clinical trial: A Palaeolithic diet improves glucose tolerance more than a Mediterranean-like diet in individuals with ischaemic heart disease and A paleolithic diet is more satiating per calorie than a mediterranean-like diet in individuals with ischemic heart disease. Thus both "Lindeberg" in the above table. Below are the diet breakdowns and foods. I note they are (expectedly) quite similar to the study above, though this trial was the lowest fat diet of them all, both by percent (28%) and absolute intake (a mere 42 g total, 13 g sat fat). Also we see the relatively large fruit intake and smaller than expected meat and fish consumption (as well as calories).