Nutritious arguments

In a debate the animal righters have a much bigger problem dealing with matters of vegan nutrition, making a case for the safety and healthiness of a plant-based diet. If, for instance, we say meat is bad for you, healthy young people may not agree since they’ve eaten meat all their lives and feel okay. They’ll likely hit back with “go talk to a sixty year old. Not me. I’m not interested in ‘the health repercussions’ of my meat diet”. Their fear of illness is still a lifetime away.
It’s easy to get bogged down in nutritional arguments (although we need to know the rudiments of vegan nutrition) so instead we might need to mention the other danger, of being complicit in cruelty. If we emphasise "ethics" we can win people over: all we need to mention regarding human safety is that:
1: Plant-based diets are safe and all nutritional needs are met from plant food.
2: Vitamin B12 may need a supplement and to be on the safe side, vegans should take about ten micrograms of this vitamin every day for the rest of their lives, unless blood tests show that it’s not necessary.
For more information we can advise people to “Google” vegan nutrition or read Michael Klaper: Vegan Nutrition, and Gill Langley: Vegan Nutrition. There really isn’t much serious disagreement these days that vegan food is otherwise complete and nutritious.