I dontk now if thats true - but i was told to steer clear of rusks because they are full of sugar - i even bought the sugar free or whatever they are called and they are still packed full of sugar..... so personally if you want to help his teeth DONT give him rusks!
how would they make their teeth come through quicker? maybe she is imagining a baby fed on puree needs something hard to gnaw on to break the gums for the teeth to come through. in which case this is not applicable to you cos you're doing blw so your lo is no doubt gnawing on all kinds of veggies anyway.
Oh bless her, my mum's full of strange ideas. I think she just likes to have some advice to dish out on every occasion, even if she hasn't got a clue.
Sigh. looks like it's going to be yet another case of me not following the norm and having to explain why all the time without causing offence to the 30,000 family members who brought up babies before me....see also co-sleeping, vegetarianism etc, etc..