BG-12 provides about 50% reduction of MS relapses.
Raising vitamin D by 20 ng provides about 50% reduction in MS relapses
BG-12 is patented, so the company can charge a lot of money and make huge profits
$3 billion annual revenue anticipated Bloomberg Nov 2011
$10 Vitamin D: many POSITIVE side effects
$10,000 BG-12: possible NEGATIVE side effects