Lol that is probably the funniest way to give a source I’ve seen

I felt like the content of this video was already pretty evident, maybe just because I’ve heard other creators talk about dealing with this same issue so often.

Is this meant to prove or disprove it?

There are some commercial vegan diets available which have synthetically made nutrients to replace those found only in animal based ingredients.

There may also be some that do not meet the safety and nutritional standards of other types of food. Manufacturers should provide information to show it is nutritionally complete and balanced. This information can be difficult to find and understand, so it’s important to speak with your vet for advice too.