Is this true..?

taso42

No.

GasMasterFlash

My wife unleashes a very frightening beast monthly. I would think that she would require an increase in her caloric intake to give the beast sustenance.

MacMadame

I heard it's when you are ovulating. But according to this article, it varies all the time:

http://www.livestrong.com/article/295115-calories-burned-while-on-your-period/