“Recent concern about the nutritional gaps in plant-based diets has led to a number of alarming headlines, including a warning that they can stunt brain development and cause irreversible damage to a person’s nervous system. Back in 2016, the German Society for Nutrition went so far as to categorically state that — for children, pregnant or nursing women, and adolescents — vegan diets are not recommended, which has been backed up by a 2018 review of the research.”