You need to know the measure in everything! It is worth breastfeeding the child until he has learned to walk. My wife stopped breastfeeding even earlier and the doctor told us that it is fine as long as we gave the baby good organic formula. We chose HiPP formula and doctor approved, he told us to get it on
https://anyorganics.com/dutch-hipp/9-hipp-dutch-stage-2-organic-combiotik-follow-on-milk-formula-800g-6-12-months-4062300168954.html because the price there is much better. If doctor approved it than there should not be any problems and with our kid there was no problem.