[Hannah's mommy]

was eating a tuna fish sandwich and shared some with my 17 month old daughter and she loved it. I then remembered that when I was pregnant, tuna fish was suppose to be limited to 6-12 ounces (depending on type of tuna) per week due to the mercury in it. Does this same thing hold true for toddlers?
I can't foresee her eating any more than a half sandwich, will that amount harm her?

Thanks for any advice.