All 41 study participants -- 28 females and 13 males -- completed three study phases.
That's so randomly specific. From the paper:
Fifty individuals were randomized into the study, but 18% (9) dropped out during week 1 of the first intervention. The remaining 41 subjects (28 women and 13 men) completed both interventions (see Supplemental Figure 1).
That's more like it.
Anyways, check insulin. It dropped in both interventions, moreso for Med-Red in male subjects but then again they started with higher insulin. It doesn't make much sense because that same group started with lower insulin for Med-Control, as low as post level for Med-Red. Various other metrics also improved similarly.
Body mass change is interesting because from a low-carb point of view, it's neither low-carb nor lower-carb nor high-fat nor higher-fat, yet there was a drop of about 1kg in both interventions. In my view, 1kg over 5 weeks is quite insignificant, especially when it can go as high as several kgs just in the first week with Atkins induction for example. But then this wasn't a weight loss experiment.
If I could plot a graph to compare this experiment with the A-TO-Z experiment, I'd probably say it matches the other three diets (Ornish, Zone, Learn), but not the Atkins diet, in all things measured, in either arms.
Teaser, it's incredible that such a small amount of red meat is blamed, I agree. But then it's equally incredible that such a small amount of red meat somehow manages to produce an arguably beneficial effect in such a short period. When combined with much older evidence about fresh meat and scurvy and the all-meat trial, to me it suggests that meat has a unique property not found in any other food. For example, in parallel to the advice to eat tons of carbs and little fat, we're also told to eat as little red meat as possible. Then, this latest experiment suggests that even a small amount of meat has a significant effect, further suggesting that the official advice about it is at best completely wrong, and at worst obviously making us sick.
Ima stick with my ribeyes, bacon and eggs fried in lots of butter and lard.