“In total 6 studies, based on 96,175 participants and 4935 cases, were included. The summary RR for type 2 diabetes comparing ever with never skipping breakfast was 1.33 (95% CI: 1.22, 1.46, n = 6 studies) without adjustment for BMI, and 1.22 (95% CI: 1.12, 1.34, n = 4 studies) after adjustment for BMI. Nonlinear dose-response meta-analysis indicated that risk of type 2 diabetes increased with every additional day of breakfast skipping, but the curve reached a plateau at 4–5 d/wk, showing an increased risk of 55% (summary RR: 1.55; 95% CI: 1.41, 1.71). No further increase in risk of type 2 diabetes was observed after 5 d of breakfast skipping/wk (P for nonlinearity = 0.08).
Conclusions
This meta-analysis provides evidence that breakfast skipping is associated with an increased risk of type 2 diabetes, and the association is partly mediated by BMI.”
Paleo Diabetic 
Eat healthy, live a physically active life, and no type2 diabetes.
I assume that, as usual, this study didn’t control for nutrient density, carb and fat intake, ketosis, etc. The subjects were probably people eating a standard American diet. And so whether the average unhealthy American is worse off for skipping breakfast would tell us little about those who don’t fit that description. Unless there is more to the study.