Vegans substitute belief for science. It's such a pretty story they tell they feel it must be true.

Vegan and Plant-Based Diets Worsen Brain Health,·September 1, 2019
Summary: Eating a vegan or plant-based diet can be bad for your brain health, especially if you already have a low choline intake, researchers report.

https://neurosciencenews.com/vegan-...n-health-14845/