I have a thriving 15 month old, but freaking out a bit after reading an article about how important breastmilk/formula feeding is until 12 months old. I'm concerned that I might not have given him enough during the switch from milk to food. I reduced breastmilk and started mix feeding with formula from 7 months old, breastfeeding of a night, formula in the day, but I never really knew how much to give as I'd never really known how much breastmilk he was getting - I'd always fed on demand. He was eating lots of food and so naturally put weight on. I was advised by a health visitor to cut the formula and just breastfeed and give food which I did - so at that point he was only getting breastmilk of a night. At 10 months I switched the night breastfeeds to formula - approx 420mil split between two feeds. We went through two bottles of multivitamins around that time too. Am I being silly??