Have you seen a dentist to learn what the "black things" are and assess your dental health?
BTW, why were you eating grains and in what forms did they take (bread, cereal, pasta, pizza, pastries, ...)? Just curious.
I think I will go to the dentist to find out what it is.. not that he can help me...
I ate oats for breakfast with shitload of honey post workout... my teeth health were very good all my life I have only 1 cavity in my mouth and nothing more than that..
I am engaged in alll sorts of intense physical activities and never thought that those carbs would make me problems i'm currently experiencing.
I've been always told that my teeth are looking very good when i didn't brush them for years...
Me and my younger brother we have rather wide jaws from birth and strong white teeth.
I am actually shocked to discover that I am just a mortal..