Just swap to cows milk. You can do it gradually or just go for it. No need to change formula numbers.
We had our 11month HV appointment last week. She suggested full fat milk after a year old but switch slowly as more gentle on their tummys. So 6oz formula amd 2 oz cows milk then and so on until uve made the switch.x
My 3yo didn’t like the straight switch so we did gradual and onto almond milk as cows seem to mess with his belly (no allergies or anything)
I heard the follow on formula is just a marketing ploy and not needed. So if they’re done with current formula and over 1yo then can slowly intro (full fat) cows milk instead. Check people like sr nutrition who have info pages about it x
I just stopped it and went straight to cows milk and she is perfectly fine xx