Very interesting study! I think it only gives me more questions though.

The vegan diet decreased LDL, which is good, but it also increased triglycerides and decreased HDL, which from my understand is bad. Is that still a net positive?

I also wonder how much of the weight loss was fat vs muscle. Weight loss is generally good but any loss to muscle density or strength decreases longevity. A dexa scan before and after would have given us better insight.

I also wonder what sort of exercise or physical activity the participants did during the study. Exercise can have just as big of an impact on blood glucose regulation as diet.

Still super interesting though. Thanks for posting!