Adjective
Dietary is an adjective; guidelines is a noun.
Either a noun or a verb: (noun) As a diabetic, he follows a strict diet. (verb) For the sake of your health, you must immediately start to diet.
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
Yes, Hindus do consume cow milk as part of their dietary practices.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.