Does the fact that Animals are so tasty prove we aren't supposed to be Vegetarians?

Yes. Yes it does.

No, that doesn't prove it. Many people enjoy many things but it doesn't prove that thing is good for them. I say this and I am a meat eater and probably won't ever be a vegetarian/vegan but people can be what they want. If they are vegetarians or vegans, that is okay and for those of us who aren't, that is okay too. If someone doesn't like your preference, that's their problem to work out and you don't have to convince them to your position.

An interesting observance. You can eat all of the veggies you want (pretty much) and you never really feel sick, but you eat a lot of meat and you do. So, if we take that observance, then perhaps we should limit our intake of 'tasty animals' and increase our intake of Veggies (yum).

What I want to know is if sugar is so bad for us, why is it sooo delicious? Wouldnt nature make us dislike the taste of things that aren't good for us?

and dogs love the taste of antifreeze...

we have canine teeth, that would seem to point to a carnivorous bent...