https://www.gov.uk/hand-luggage-restrictions/baby-food-and-baby-milk According to the government website, there are no restrictions other than on frozen breastmilk x
No restrictions. I used to travel with half a tub for long haul to Australia or America, plus 2 flasks of boiling water, baby pouches, calpol satchets and sanitiser. There’s no baby limit for liquid allowance or weight as it’s medically exempt.
Check on the airport website you’re travelling with to be extra sure but I know there’s usually a 2L limit on carrying breast milk/ baby milk (per container). Baby formula (powder) is a little different but usually permitted in clear bags/ containers