Yes, this is a debate forum. In that spirit...

"you would know that we have teeth, esophagus, stomachs, intestines, liver etc for a reason."

I agree entirely. We do have teeth, esophagus, stomaches, intestines, and liver for a reason. However, that reason doesn't necessarily have to be because we NEED food, but only because those structures are designed to process food.

With that said, I've been experimenting with fasting for a long time. I can tell you that breatharianism (regardless of whether it is true) is something that most people on this planet will not be achieving any time soon. If someone thinks they can meditate on a mountaintop for 21 days without food or water just because some book says that they can, they will probably end up dead.

In my experience, so-called breatharianism isn't really advantageous over eating. The only real practical use for breatharianism would be to survive if you somehow could not obtain any food. This is an extremely unlikely scenario, as almost every environment on the planet contains edible things if you know how to obtain them.

There is a good reason we don't see any good evidence for permanent breatharians. I think it has less to do with whether it is possible, and more to do with the fact that there is almost no situation in life where breatharianism would be practical (even if one did know how to do it)

I look forward to more debate.

Man is steward of the earth. this life is a gift to that spirit embodied within the human form. that form that you have taken on doth not "need" to do anything. You have choice.
You have the ability to walk in the gardens of eden and bless all of creation, and you have the ability to partake of the apples, but it is not required of you by thy creator.
for you also have the ability to kill those animals that have been by your side, and you have the ability to scwander all that inhabits this garden for selfish benefit.
Being breatharianism does not mean you have to never eat ever again because it is evil, its not evil to eat, and niether is it required. Breatharianism means you don't have to eat, you don't need to, but you may taste the sweetness of the fruits which are a blessing from thy earthly mother. it is not required.
For have you heard of those lords of light, masters of the universe, who levitate and travel through space in MerKaBa, teleporting. How would they be able to live without food up there in the depths of space without first passing through the challenges of the earth. overcoming that need for food which has become addiction. to be sustained by the air of life and the water of life. For it is that life that is the sustainer, that source of life that is within you which you are. The food is a vehicle for that life to be transfered, and thy body is a body filled with that same life. and it is that source of Life which sustains those masters of life beyond even the realms of Earth Air Water and Sun.
the essenes say: first we are nurtured in the embrace of our earthly mother and her earthly angels, then when we have matured we will inherit our Fathers Kingdom and learn to work with Him and his Heavenly Angels in the 'fields'.