Earlier quoted context omitted.
I don't mind vegetarian. I rarely eat meat and never crave for it. However vegan just sounds horrible. Eggs and cheeses are incredible, milk, fish, prawns. Cutting them out feels like cutting half of the nutrients out of my diet. I wouldn't risk it unless I had very extensive knowledge and dedication to human dietary requirements and what which plants can provide, which I don't have and won't have.
With a vegan diet, you need vitamin B12 supplements. Take a multi-vitamin supplement, some linseed oil for the essential fatty acids and maybe some mineral supplement if appropriate according to the blood test. You should do that anyway no matter your diet. Dr Garth Davis: Americans have become obsessed with Protein https://www.youtube.com/watch?v=XQCt3IhaUtU&feature=youtu.be...
https://arstechnica.com/science/2018/02/supplements-are-a-30...