Interesting op-ed piece in NYT today by Nina Planck (she was here in Tampa last year pimping her book — Real Food). Her basic point is that veganism (and maybe vegetarianism) is an irresponsible diet for young children. Even breast milk from vegan mothers suffers from a deficiency of several important nutrients. Vegan? Maybe pick a nice formula and bottle feed.
We had a similar case in South Florida a few years back of a couple who fed their newborn a strict "raw" diet.
The short and simple answer to this is — talk to a doctor (a real, gosh-darn medical professional) before subjecting a child to any form of alternative eating system. That's what most vegan and vegetarian parents do and that's why cases like this are, thankfully, a very rare, tragic exception.