The laws of kashrut are laid out in considerable detail in the Torah. That fact in itself is
enough to make kashrut important to those Jews who consider the Torah to be important.
But we have the capacity for reason and wisdom and critical thinking, and Judaism doesn't
demand blind obedience without any thought. If a Jew cares to think about kashrut in order
to understand it, then by all means he is encouraged to think about it, and to study what the
great thinkers have thought about it through Jewish history.
I won't attempt to outline or summarize the subject here, but I'll just give you a couple of
simple, transparent ideas on the topic:
1). Somewhere along the line, it must occur to the modern, educated, intelligent, thinking
person that maybe, just maybe, the substances that he routinely puts into his body on a
frequent and regular basis, several times daily for several decades, could have some influence
not only on the physical development of his body, but also on his character, personality,
attitude, outlook, and the type of person he becomes. Just maybe.
2). Where the Torah introduces the discussion of kashrut, it says something to the effect
that we are to do this in order to "be holy". I don't know what that means, and I submit
that there are very few people who do. But it sounds as if it may be kind of important, so
maybe while we're figuring it out, it might be wise to be aware of kashrut anyway, just so
we don't spoil something beyond repair before we've figured out what it means to "be holy".
After all, when we know what it means, we may decide that we want it ! So it might be shrewd
to keep our options open.
Kosher is the diet of Jews. Jews keep kosher. If you keep kosher you cannot eat: shellfish, pork, or dairy mixed with meat. The main land of Jews is Israel. So technically, the nationality of kosher is Israel.
Orthodox Jews keep a strictly kosher home.
Kosher food is not like a specific food. It is not like Hamburgers or anything. SOme foods are kosher and others aren't. Since most people eat all types of food, you can't really avoid eating kosher food.
The Torah permits eating (kosher) meat; and on certain (festive) occasions Judaism encourages it. Most Jews eat red meat, though some Jews are vegetarians or have other reasons for not eating red meat. Additionally, for Jews who keep kosher, meat (and fowl) need to be slaughtered and prepared according to kosher specifications.
Kosher refers to food that is prepared according to the laws of kashrut. The people who keep kosher are Jews. Kosher is a classification, not a people. That being said, if the nachos and salsa are certified kosher, religious Jews who keep kosher can eat them.
When it comes to meats, Kosher is not synonymous with Halal, so no, we cannot eat Kosher Gelatin. Gelatin is considered kosher by many Jews regardless of its source of origin. For Muslims, if gelatin is prepared from swine or cows that are not dhabeeha, it is haraam.
The Jews that choose to keep Kosher cannot eat bacon because it comes from pork (pig), and that is one dietary restriction of keeping Kosher
Meat and dairy.See also: more about how Jews keep kosher
Jews who eat kosher will not eat snails since snails are not kosher. However, not all Jews eat according to the laws of kashrut, so some Jews do eat snails.
No, this is not allowed for those who keep kosher.
Jews eat food -- observant Jews attempt to keep the laws of kashrut by eating kosher food. When? Many Jews eat 3 meals a day with occasional snacks. Some skip breakfast.
Jews eat and drink food and beverages just like any other person. Religiously observant Jews would require all consumables to be kosher.