Dr. Jason Fung has done extensive research and experiments on this topic including fasting. You can read his research in his book obesity code. Very eye opening.

A quick google search results in multiple well cited articles discussing it.

I'm sure it could also yield multiple well-cited articles on the other side as well. It would be much more helpful to actually provide some research that you stand behind.

Lyle McDonald: http://www.bodyrecomposition.com/research-review/meal-freque...

Probably the best and most researched article on this.

Bullet point 4 here: http://www.leangains.com/2010/10/top-ten-fasting-myths-debun... has an article reference.

Basically, you can certainly go into starvation mode, but not in any reasonable amount of time. Skipping meals or even fasting for a whole day will not cause "starvation mode". Prolonged calorie restriction can affect hormones like Leptin and affect energy expenditure.

Bear in mind that Lyle believed in "starvation mode" 10-17 years ago; I believe he mentions it in his first book. He was also a firm believer in strict caloric arithmetic and that microbiome didn't matter. His content is only as good as the current scientific literature is, and that has changed a lot in the past 20 years.

A quick Google search also shows several well cited articles supporting the flat earth theory.