Here's an
interesting article I saw recently. It's written about kids, but I think it's pertinent to adults who don't drink. It goes along with what Cristeen experienced. The way she describes her diet, it sounds pretty low-glycemic. Keep in mind that what you eat
with a food also affects its glycemic index. So, for example, if you eat potatoes, be sure to eat them with plenty of butter, and some animal protein.
I would guess that grains might have some effect aside from their glycemic index. In our family, we mostly stay away from grains, and we're healthier for it.
In addition to the Grain-Free Gourmet cookbook (which uses a lot of almond flour, btw - not saying that's bad, just an fyi), there is Cooking with Coconut Flour, by Bruce Fife. We really like baking with coconut flour. I don't use sugar in his recipes, though (which he calls for most of the time). I use a small amount of honey, and add a little stevia sometimes to make it sweeter.
There are also the recipes on
pecanbread.com, as well as
scdiet.org and
scdrecipe.com. The SCD recipes are really helpful when eating grain-free, even if you're not doing the SCD.
As an aside, cutting back on/cutting out grains and sugar can also lower your triglycerides.
I hope you and he can get a handle on this!