Breastfeeding Baby With Dairy Allergy

I received an email today asking a delicate question.I was wondering if you could help. If my baby has a milk protein allergy (she is breastfed) can I eat products that are non-dairy but with added lactose such as deli meat?This is a question I had to tiptoe very carefully around. I answered:Pure lactose will not affect someone who has a dairy allergy, which is to the dairy protein. Breastmilk itself is 7% lactose, so any additional lactose in the diet wouldn't be even noticed.If the additive in the deli meat is some other milk product then you should check with a doctor first.A few people are...