[stonemetal]

carbohydrates are all nothing but sugar, they do nothing for you. Grains are particularly bad because they not only don't provide anything but sugar but they also prevent the absorption of minerals(in the link he explicitly calls out oat meal but others do it as well). Studies show that cutting out grain(note some grains are ok mostly freshly processed grains are bad. Sour dough is OK) will make your teeth immune to tooth decay and any cavities you have will heal themselves.

http://wholehealthsource.blogspot.com/2009/03/reversing-toot...

[swombat]

carbohydrates are all nothing but sugar

Sugars are a pretty essential part of any healthy diet. If you're not eating sugars (complex and simple), you're not eating right.