I have looked this up for you on google and the general answer is as long as it is a pasturized mayonaise ( hellman's and kraft are pasturized) and it is sored corectly it is fine. However, I have read to stay away from specialty mayos which may not be pasturized or thos in restaurants which may not be stored correctly!

I honestly have no idea, but I put it on my sandwiches all the time...  Even with the first bub... HMMMMMMM

Hey Babe,

I wouldent i dont have a hellmas jar only heinz but i think you cant have it as it contains egg. Give you a ring tomorrow before i go to wonford . xxxx

Technically all shop bought mayonnaises contain eggs that are pasturised, but I was paranoid with DD1 and avoided them anyway. With DD2 I decided a little of what I fancied.... and had them occasionally. It's up to you, but its uncooked eggs you need to avoid, so home-made & unknown mayonnaises.

There is no cautionary advice on the jar in my fridge, (hellman's light) but I do recall something about not having it while pregnant.  Something to do with the egg content if I remember rightly.  I would err on the side of caution and go without if possible.

Peace
EF.x