Hi,
You can decide not to eat grains, and go down the low carbohydrate route but there are good reasons that you have heard that wholegrains are good for you so its worth investigating them.
Summaries of recent research:
http://wholegrainscouncil.org/whole-grains-101/what-are-the-health-benefits
http://wholegrainscouncil.org/whole-grains-101/health-studies-on-whole-grains
When wholegrains are milled to make flour it makes it quick to digest and absorb into the blood stream. Whilst wholegrain bread has the advantages for health of wholegrain for many people with diabetes it acts also very quickly in the bloodstream causing blood sugar levels to spike. (it is termed high GI and sometimes no different to white bread in this respect) .
Some breads are better than others, including mixed cereal breads with whole grains (literally intact seeds) , bread that is made with some rye, oats and even better if made with a sourdough process. These are usually lower gi. Burgen bread is one commercially produced lower GI bread.
But wholegrains don't have to be eaten in the form of bread, nor are they just wheat. Bread and breakfast cereals seem to be one of the worst ways for some people with diabetes to eat whole grains. Whole meal pasta maybe better since pasta itself can be lower GI (portion size is important though). I find pancakes made with buckwheat flour very low GI . Bulgur is another grain that though partly processed is 'whole' and fairly low GI. Oatmeal in small 30-40gm portions for porridge is another (peoples reactions to it seem to vary)
Other grains are fine cooked whole ( pearl barley, quinoa, and of course brown and wild rice . )
Theres a list of wholegrains, some of which I've never seen, on the above site.......
....and the basic way to cook them and some recipes in this online book here:
http://www.drmirkin.com/goodfood/index.html
(I think the writer is actually vegetarian and her diet as a whole , based on the DASH heart diet will be controversial on this forum but I was led to her site by a person with type 2 who has recently adopted the diet and claims to be doing very well on it )