I have an older dd who has no food allergies, and ds1 with egg, milk, wheat nuts, and ds2 with egg nuts. I let my dd have wheat toast and milk at brekkie, and her lunch at school usually has things she can't eat at home. Dinner is generally friendly for everyone. We don't have eggs or peanuts in the house due to their risk factor, and dd is really good about eating cleanly and always washing hands. How responsible is your ds1? The tough part is how ds2 will respond if he sees his brother eating things he can't have. Need to make sure that ds1 knows not to share. Gluten free pasta isn't too bad, especially the corn ones. GF breads are generally pretty terrible. You have better tasting options though, bc you can do eggs. Daiya makes an cheese alternative that my son likes, but i'm not a fan. Then again, i'm pretty picky. As for breastfeeding, i know i had to not eat any of my son's allergens, but if he's only nursing a couple times a day, i'm not sure it would make a big diff. I would be tempted to say not to eat dairy and wheat, just to make sure that it's not coming from you if the diet isn't working for your son. Anyways, hope some of this made sense.