People say that meta-analyses can weed out whatever statistical vagaries there may be from individual studies; but looking of that graph of the meta-study of saturated fat, I’m just not convinced of that at all. Like, relative risk of CVD events suddenly goes from 0.2 to 0.8 at a threshold of 9%, and then just stays there? Relative risk of stroke goes from 0.6 at 9% to 0.9 at 12% and then down to 0.5 at 13%? Does that say to you, “more saturated fat is bad”, or “there’s a statistical anomaly causing this jump”?
People say that meta-analyses can weed out whatever statistical vagaries there may be from individual studies; but looking of that graph of the meta-study of saturated fat, I’m just not convinced of that at all. Like, relative risk of CVD events suddenly goes from 0.2 to 0.8 at a threshold of 9%, and then just stays there? Relative risk of stroke goes from 0.6 at 9% to 0.9 at 12% and then down to 0.5 at 13%? Does that say to you, “more saturated fat is bad”, or “there’s a statistical anomaly causing this jump”?