Yes, "halal" should be italicized when mentioned in formal writing to indicate that it is a foreign term or to emphasize its importance.
ITALICIZE
Italicize or underline the title.
no
There are four syllables in the word italicize. I-tal-i-cize.
No, but need to italicize the names of programs.
No, you do not italicize company names in APA style.
no, it is not halal
It is halal if from halal meat.
It is not necessary to italicize the name of a tank. However, if you are writing in a formal or academic context, you may choose to italicize the name of tanks for emphasis or clarity.
No.
No, you cannot italicize words for emphasis in a single question.
In citations, you italicize the titles of books, journals, newspapers, and other standalone works.