this day, charlotte's web is all she takes. >> we just do that in the morning and the night and that's all charlie needs. >> you have to indulge me on this. did anybody think it is a miracle? >> i still think it is. and then another one happens every day. >> so you're from this big family. evangelical christians, right? was there a part of whatever moral tuning fork is inside you to say this is a non-starter? >> a lot of evangelical families produce rebels? i mean, i was all about it. >> once i started to look into it i started to realize there's absolutely nothing that's unchristian about helping people with a plant. >> reporter: the brothers say the oil is now helping hundreds of other children with epilepsy. the does, $250 a bottle. it lasts two months.