I call bullshit. This is causation not correlation.

There was some study in the USA that showed that girls who had a horse when they were young had better health (duh, and rich parents), it’s the same type of flaw here IMO.

Also, if you do think it has some merits, beware:

a food system that supplies large amounts of animal-based proteins and fats – such as meat, eggs and dairy – lowered rates of infant mortality.