I think genes do play a part Jerry but quality of life is equally important. For most people, this is a consideration.
I think to rely on genes to see them through life is asking a lot.

I think that any diet fad is not necessary. Sensible eating habits and physical excercise is important.   I don't think you have to wear your dietary habits on your chest like a button. Also, I think
it's really stupid to crow about bad eating habits. Kinda' like
bungee jumping with a standard rope.

Being a vegan is not a fad. It's a sensible way to go if you
do the homework and realize just what nutritional elements
need to be met. It's not about just eating veggies but about how you go about implementing your diet with a wide assortment of veggies.
In short, if you do the homework and recognize what you are
taking into your system and what effect it has on your health, you are doing yourself a real service.

As to the moral aspects of this, there are those who think little of animal life and it's reflected in their attitudes. There are those
who get off on abusing animals and this carries over into their
human relationships.

Frank