Yeah I was told by a HV that cos they’re unable to legally advertise first infant milk, they make the follow on milk to basically get the name out there! So they can advertise on tv etc not sure how legit or if that’s complete bs but it kinda of makes sense!
I only changed to follow on milk because it seems to be cheaper! My HV also said it doesn't matter if you don't change
Follow on milk is mostly a marketing technique, that’s what my health visitor said.