There was a similar story (or two) in the news years ago. I will see if I can find them.
One was in Florida. (of course)
Another one in France.
Court hears parents became vegan after watching documentary about abattoirs and refused to eat any animal products
www.theguardian.com
I also remember the Italians tried to pass a law on outlawing veganism in response to something similar.
A controversial Italian bill proposes jail time for vegan parents who impose the "reckless and dangerous" diet on their children.
www.bbc.com
NYT has written the kind of article NYCG wants
A judge in Australia said a couple had left their baby “severely malnourished” on a strict vegan diet. Experts said that, with proper guidance, children can be on a totally plant-based diet.
www.nytimes.com
And to paraphrase Ian Flemming, once is happenstance, twice is a coincidence, three is an epidemic.
Although all of these tragedies could have been avoided with some research by the parents*, it's clear to me that we can not rely on that all the time.
Here in the USA, the typical reaction is to put a warning label on a product. "Do not drive with sunscreen in place. " Not sure what kind of warning label we need here. Would we put it on the baby?
Or to pass a law. For example, Stop at a railroad crossing while lights are flashing. Violators will be prosecuted. (if they survive). This is what Italy seems to think is the right path.
One would have hoped that after thousands of years of evolution the stupid people would be eliminated from the gene pool (Don't tease tigers). Evolution in Action. But it seems like there are more stupid people than ever.
-https://darwinawards.com
* It used to be that the first thing a person did when finding out they were pregnant was to get a book on prenatal care, another on infants, and another on children. Maybe we do need some government regulations. We require people to pass a test to drive a car. Why not require one for parents?