I didn't think it had effected mine until Ashton self weaned at 13.5months I was sad. He was so fussy then just blatently refused the nipple at all. Clammed his mouth shut and turned away whenever I tried. Then when I would say "want num num's?" He would announce "NO" lol

Probably tasted different. It's all I put it down to because there was and still IS milk there. I've tried a few times since to offer but he isn't interested.