People who keep kosher won't eat certain vegetables because it's too difficult to clean them of bugs. Also, not all supplements are kosher. If the vegetarian in question eats dairy and/or fish, the dairy products may require kashrut certification and the rules of kashrut limit what fish are allowed.
Additionally, any processed foods, including vegetarian/vegan products, require kashrut certification.
A kosher butcher will only sell kosher meat. Regular butchers don't sell kosher meat.
Any serious difference exist between kosher salt and standard table salt.
Glatt kosher is stricter, meaning that kosher animals get checked more closely for any scars in their lungs.
Any difference, both are sodium chloride (NaCl).
No, there is no difference in tenderness between kosher and non-kosher beef. The animals are raised in the exact same way with the only difference being the way in which they are slaughtered and that as part of the kashering process, kosher beef is salted to draw out excess blood.
Difference in style, seasonings and kosher supervision.
Difference in style, seasonings and kosher supervision.
No, it is vegetarian. (But it is not kosher)
The size of the salt granule.
Yes!
Not much difference - Halal is practiced by Muslims, and Kosher is practiced by Jews. Neither eat pork, and each have requirements on how their meat is slaughtered and processed.
Hi-Chew is not kosher, halal, or vegetarian.