I've gone gluten-free, mostly grain-free and sugar-free as well because it just makes me feel better overall (no celiac that I know of). But many gluten-free products/recipes are loaded with sugar and 'junk' carbs. Several of my favorite blogs/websites are WheatBelly Blog, GourmetGirlCooks, Satisfying Eats and MariaNutrition. It takes some time to get used to new ingredients and ways of cooking/baking, but I think it's worth it!
Andi