My DD2 weaned off the boob at 12 months straight onto zymil milk as plain cows milk upset her tum. DD1 had her large bowel removed, was FTT and needed heaps of calories. At 12 mths old she weaned off the ngt, we put duocal in all her food + alfare prescription formula until about 13 mths when we swapped her to s26 toddler formula as she really needed the cals + nutrients.....was a balancing act for a bit to figure out how much milk filled her up too much so she would actually eat! She never really 'drank' from a bottle properly though.....