Ha. As soon as I clicked post I knew the pasta q on getbig was a bad idea.
ahahahha, it's cool man.
My general understanding is that sugar is sugar, irrespective of how refined it is or not.
Autoimmune diseases are generally caused by mainly genetic predisposition which is aggravated by an unhealthy lifestyle, meaning, inactivity, being overweight, smoking, drinking, and rec. drugs, in addition to making a habit of constantly eating more that what your body requires.
As long as you keep a healthy weight, meaning, 15%bf or less for males, in addition to regular exercise, you don't need to worry about brown or white pasta etc...