Is the Rhythm Method Better Than Condoms?


Are there good reasons to be sceptical about the Rhythm Method?

Meaningful Volunteer actively promotes a method called SDM (Standard Days Method), which is very similar to the rhythm method.  

Might we be better off advocating for all forms of contraception in its programs in the Philippines, where abstinence and natural methods are preferred due to the religions norms?

This article featured on Slate advocates a sceptical approach to assessing the claims of the producers of the SDM method.

What do you think?