I did 5:2 to address a 5# regain and it worked so well, I decided to lose a bit more. I am not doing 5:2 now, but I still use some of the techniques- and they work! Anyway, an article, not about 5:2, but about health benefits of fasting:

http://www.foxnews.com/health/2014/07/25/this-is-what-happens-to-your-body-when-skip-meals/?intcmp=obinsite

What exactly is the 5:2 diet? I've been stalled for about 2 months now and would like to find a way to get the scales moving again.

You can google it.

For five days per week you eat a reasonable diet, and for the other two you don't eat more than 500 calories.