Ah yes, I had forgotten they all had reflux with the MPI. Sorry
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We really kept it to fruit and veggies for the first couple of months. Purees mixed with gluten free cereal (for thickening purposes really) and formula. Bananas, peaches, plums, apples, pears, avocado, blueberries. Once per day, after lunch time. I think that was a good 6 weeks at least. Started adding gluten free grainy things in the mornings - rice flour pancakes, mushy GF cereal, etc - mixed with new fruits like prune puree, etc.
Fruits in the mesh feeder about 7-8 months - chunks of peach or plum for instance. About 8-9 months we added dinner. Just bits of whatever we were having - salmon with avocado, sweet potato cooked in cubes, home fries (boiled potatoes left to go cold and then chopped in cubes and fried in olive oil for instance). Strips of chicken, meatballs, turkey burgers, etc. But when we added dinner in, it was only on nights when it worked, yk? Like, if he was tired or needed a bath or his nap was late, he just did not care. I know a lot of people have their LOs on 3 full meals at 6 months and we were totally the opposite. I was in no hurry and took it really slow. But yet we still met all of the "guidelines" esp for milk intake and he increased his solids and dropped his milk sort of naturally, yk? At 12 months he was on a bottle in the morning and a bottle before bed with 3 meals and 2 snacks. And that evolved slowly over 6 months, so his milk was still his main nutrition.
HTH? xx