Whey Protein Powder - Is there a reason it says to not use?

[@llli*miniwo]

I was going to make myself another protein shake this morning like I have been for a while and was just reading the label to read and never noticed there's a warning label to not use when pregnant or nursing. why is that??

have I hurt my DD by drinking 1 shake a day??

[@llli*filmmommy]

Is it just straight-up whey, or are there other additives? I would think the whey would be okay, but any additional additives might be questionable. I drink hemp protein and honestly have never even looked at the container to see if they have any warnings because there are no additives.