Well, if I could really make some huge changes...
I would have eaten a traditional foods based diet--including lots of grass-fed/pastured meat, (wild caught) fish, poultry, eggs and good fats like coconut oil and ghee and superfoods like liver and cod-liver oil pre-conception, during pregnancy and beyond. (I was vegetarian for a very long time...)
I would have included fermented foods w/ all of my meals.
I would have made mineral rich bone broth, and only utilized raw dairy products (mostly cultured) in my diet.
I would have avoided gluten, just because I like how I feel w/out it much better. (I may have done sprouted gluten grains, like what's in ezekial bread.) Although right now I eat pretty paleo, and maybe would have done that because I LOVE how it makes me feel.
I would have made sure to get all of my nutritional needs met w/ the food I ate every day. I would have supplemented w/ whole foods based supps (as much as possible) if I didn't feel able to meet my needs w/ food.
I would have had a homebirth if possible (which I did--yay!) and as little medical intervention as was safe for myself and my babe.
During nursing, if I had troubles w/ supply, I would have utilized donor breastmilk (which I did) along w/ making my own bone-broth based WAPF style formula if needed (which I didn't do--I used commercial formula

). I would have nursed at all times, disregarding the advice of my lactation consultant to do 1/2 hour long nursing sessions every 1.5 hours. I would have laid in bed nursing all day and all night, as much as my child wanted to build my supply in the way nature intended. (BIG regret there!!!!)
I would not have used antibiotics for myself or my ds ever unless I felt it was truly medically necessary, and would have used extra probiotics during the course of antibiotics.
I would have never given my ds any vaccinations.
My ds's first foods (besides my milk) would have probably been fermented vegetable juice, fermented veggies, and bone broth, along w/ liver and other meats. I'd intro everything one at a time, doing meats and veggies and fruits first, probably waiting a week between each new food. (I too would wait on nuts till ds was older--maybe 2+.)
I would watch for any signs that many folks think are normal (baby 'acne', sleep issues, digestive upset, etc.) and change my diet accordingly while nursing to see if it changed anything.
I too would nurse as long as my ds wanted (which we are doing).
I would probably avoid introing dairy for a long time, and when I did only raw, cultured dairy. I would not even intro gluten (until my child was really wanting to try it, which I don't think would have happened until he was older), and grains I might not intro either unless my child really wanted to try them. Like I mentioned, I really like paleo eating now--ds and dh still eat some grains, but a lot less since I do all the cooking

which they are ok w/! If I were doing grains, they would be sprouted or soaked as part of their preparation, and I would intro them after I'd introed most meats, veggies and fruits (the really nutrient dense stuff.) Legumes I'd sprout b/4 introing as well, and I'd do those later too. Tougher to digest for some of us.
[I just want to mention, I really believe in allowing/supporting my child to be in 'control' of his own body and choices. Unless an allergy was a true allergy, I would not *forbid* him from eating anything he wanted. BUT, I make substitutes for EVERYTHING others eat (esp. when we are around them), and he is really ok w/ this. We talk about repercussions of eating foods that he reacts to (that he could get a painful rash on his butt--the worst reaction for him in terms of how it feels, etc.) He makes his choices accordingly, and always chooses NOT to eat foods that have his triggers in them. But he almost always is able to eat something similar to what others are eating b/c I make sure to make it and bring it to every gathering we go to, which I think makes a huge difference...Willingness to make his favorites at the drop of a hat has been helpful w/ this I think--he does not feel deprived--if he wants to eat candy or cookies etc, we just make them right away for the most part if we don't have any stashed in the freezer, etc... I would not feel comfortable 'restricting' his diet in any way if he had no allergies/reactions, and I still don't see what we do now 'restriction'. I would not feel comfortable saying something like, "We don't eat that" if he was interested in a certain food etc.--Just want to clarify since I've mentioned waiting/not introing so many foods unless he really showed interest in them. I think starting off w/ a great diet as foundation, along w/ great gut flora from this diet could enable a child to much better cope w/ foods that are not so easy to digest, such as gluten, etc...]
This is so long--hope it makes sense!!!

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