They are many reasons that some people become vegetarians. Some want to improve their health and loss weight. Many of them find it immoral to kill and eat animals. Some are concern with the issue of environment and world hunger. All of their reasons are acceptable. It's essential to know whether or not meat is the appropriate food for human physically and ethically.
When we look at nature wild animal kill and eat others. They do this by nature. Their body and biology have been created in a way that they can only eat meat. Their teeth, jaws, paws, and their stomach have been created for eating meat. So we can say they only eat meat since they can't eat anything else. But humans' body and biology is not the same as wild animals. Human's delicate fingers and round shiny teeth, and stomach have nothing to do with jumping on back of a zebra and tearing its skin and eating it. So meat is not the real food of human. If it was humans never had to cook meats and use lots of spice in order to make it tasty. Unlike wild animals humans have other choices in eating like vegetables and fruits.
Experiments have shown that having no meat dishes reduces the risks of heart disease, high blood pressure, obesity, diabetes mellitus, and some forms of cancer. It is believe that vegetarians don't get essential amino acids from vegetable proteins. But studies have shown that all of the essential amino acid can be found in non meat sources. And there is no need for vegetarians to combine plant protein sources in each meal since "the human body can store essential amino acids and combine them as necessary." www. primusweb.com.
Ethically killing and eating animals is wrong. It's true that animals don't have common sense but they do have feelings and there is no doubt that they feel fear when we want to kill them. If you catch a squeal you will feel that its heart is beating fast. This shows they do feel fear and they like they life instinctually. We didn't give them the right to live so who are we to take that away from them. And if each of us has had to provide his/her daily meat who had had the guts to do so. Who could take a knife and cut the sheep's head off with lots of blood splashing. Killing and eating animals is not what individuals' desire. So providing meat is very different form providing fruit and vegetables and it's not the human desire to kill and eat.
In the end, it is not strange if someone doesn't eat meat. Eating vegetables and fruits are physically and ethically right. Human have been created biologically to eat vegetables and fruits.
(Some of the famous vegetarians are Leonardo Da Vinci, Charles Darwin, Socrates, Plato, Sir Isaac Newton, Thomas Edison, and Mark Twain)
the picture is from:http://www.diabetes-diabetic-diet.com/images/vegetarian
For more information see Hedayat's book"favayedeh giyahkhari"
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