Tamara, the most natural way to say this is “fruits and vegetables” https://books.google.com/ngrams/graph?content=eat+fruits+and+vegetables%2C+eat+fruit+and+vegetables+&year_start=1800&year_end=2000&corpus=15&smoothing=3&share=&direct_url=t1%3B%2Ceat%20fruits%20and%20vegetables%3B%2Cc0%3B.t1%3B%2Ceat%20fruit%20and%20vegetables%3B%2Cc0

I can’t seem to retire from this site. Somebody always calls me back to deal with this kind of shit. “there are fruitS and vegetables available.”

🙏

+++Tatiana

Улий, (1 - fruit vs. fruits) we were taught to use "fruit" for both singular and plural unless you mean DIFFERENT kinds of fruit(s). Is that wrong?
(2 - there is/are) We were also taught to use is/are like this:
THERE'S a table and some chairs in the room.
There are some chairs and a table in the room.
I started to doubt it whether that's correct.

With “eat” in this context the meaning is to eat different fruits and vegetables. By the same token, you would say “there are fruits and vegetables” because it implies that there’s a variety of them both.

Got it! Do you ever use "fruit" as a plural form?

No, only as a collective uncountable form. Otherwise, we just use the plural FRUITS.

🙏

I asked several English people about my translations and they all said that my translations are correct.
This is what one of them wrote:
"Maybe American English is different, but in British English fruit can be both countable and uncountable, so your sentences are correct. It is countable only for emphasis / distinction. ‘Apples and bananas are completely different tasting fruits.’ ‘I eat lots of fruit’ could mean I eat a great quantity, but only grapes and plums. ‘I eat lots of fruits’ means I eat a great variety of fruit."

Uly, and since you don't want to retire from this site, you can also correct this:
https://www.lingvolive.com/en-us/community/posts/1270519

HAVE fruit and vegetables is ok, but not “are fruit” in British or American English. It’s either “there is fruit and there are vegetables“ or simply and logically “there are fruits and vegetables.”