Eating too much is not good.

[Hansman]

Eating too much is not good for your health.
Here in the sentence, is the speech part of much a pronoun or an adverb?
I think that much becomes a pronoun from an adjective after the word food is omitted like too much (food) or can much be understood as often like Eating too often?

 

[Tarheel]

Try:

What part of speech is "much"? Is it a pronoun or an adverb?

It seems to be functioning as an adjective, modifying "food", which is not there but is understood.

You seem to understand the sentence without any problem.

(I will gladly yield to anybody who can explain the grammar better.)

 

[jutfrank]

The phrase 'too much' here expresses the idea of overconsumption—in other words, a detrimental quantity of food consumed.

In other contexts, 'too much' can express frequency rather than quantity. In such cases, it works as an adverbial phrase rather than a quantifier.

 

[Annabel Lee]

Eating too much is not good for your health.
Here in the sentence, is the speech part of much a pronoun or an adverb?

I'd analyze it as a pronoun that can function either as direct object or as an adverbial noun phrase. The sentence is ambiguous.

He eats too much.
He eats a lot.

Both of those sentences are ambiguous in the absence of context. Either quantity or frequency may be the focus.

 

[5jj]

I'd analyze it as a pronoun that can function [....] as an adverbial noun phrase.

Word classes are not what they were when I was a lad.

 

[Annabel Lee]

Word classes are not what they were when I was a lad.

An adverbial noun (or noun phrase) is a noun (or noun phrase) that functions adverbially, like "Wednesday" in "I saw her Wednesday," or "the day after tomorrow" in "I'll see you the day after tomorrow." In traditional grammar, from the 1850s through the 1960s or thereabouts, they were called "adverbial objectives." Another one is "home" in "I'm going home."