"What is the quickest way to transition to natural?"
I cannot tell you how much this question burns my toast. The quickest way to go natural is to just chop off all of the relaxed hair and roll with your new natural hair.
However, if you're hoping to transition--meaning grow your natural hair out to a length you're comfortable with before cutting the relaxed ends off--you're in for a wait.
If you're wanting to transition without any setbacks, stop by my post called "Transitioning for Dummies". This post has helpful tips to get you started on your way to natural hair.
You also may want to consider taking a multivitamin for overall health and biotin supplements for extra nutrients toward your hair, but remember transitioning takes time. You won't grow a head full of natural hair overnight.
*Goes to get a new piece of toast*....