Regimul alimentar nu are crustacee.

Because Romanian usually puts the definite article at the end of the noun.

• regim = a diet / a regimen
• regimul = the diet / the regimen

So regimul alimentar means the dietary regimen or the diet, referring to a specific one.

They are very close, but not always identical in tone.

• dietă is the everyday word for diet
• regim alimentar sounds a bit more formal, structured, or medical, like dietary regimen or eating plan

In many contexts, both would work. A Romanian speaker might also say:

• Dieta nu conține crustacee.
• Regimul alimentar nu conține crustacee.

In Romanian, adjectives often come after the noun.

So:

• regim alimentar = dietary regimen
• literally, something like regimen dietary

This is normal Romanian word order. English often puts adjectives before the noun, but Romanian usually places them after it.

Also, alimentar agrees with regim in number and gender. Here it is singular, so alimentar is the correct form.

Are is the 3rd person singular present form of the verb a avea, which means to have.

So:

• are = has
• nu are = does not have

Literally, the sentence says The diet does not have crustaceans. In natural English, that usually becomes The diet does not include crustaceans/shellfish.

Romanian negates a verb by putting nu directly before it.

• are = has
• nu are = does not have

Unlike English, Romanian does not need a helper verb like do/does.

So English:

• does not have

Romanian:

• nu are

This is one of the most basic and common negation patterns in Romanian.

Because it refers to crustaceans in general, not to some specific crustaceans.

Here crustacee is a bare plural, which is very normal in Romanian when talking about categories, ingredients, or things included/excluded.

Compare:

• crustacee = crustaceans / shellfish in a general sense
• crustaceele = the crustaceans, specific ones

So in this sentence, crustacee means the diet does not include that category of food.

It is plural here.

The singular is:

• crustaceu = a crustacean

The plural is:

• crustacee = crustaceans

So the sentence is talking about crustaceans as a group, not one individual animal.

Not exactly.

Crustacee specifically means crustaceans, such as:

• shrimp
• crab
• lobster
• prawns

English shellfish can be broader, because it may also include mollusks like mussels, clams, oysters, and squid, depending on context.

So if the English meaning shown to the learner is shellfish, that may be a practical translation in some food contexts, but the Romanian word itself is more specifically crustaceans.

It is understandable and acceptable, but many speakers might prefer a verb like conține or include in this kind of context.

Common alternatives are:

• Regimul alimentar nu conține crustacee.
• Dieta nu include crustacee.

These can sound a little more natural for labels, menus, or dietary descriptions.

Still, Regimul alimentar nu are crustacee is easy to understand and not wrong.

A simple English-style approximation is:

reh-ZHEE-mool ah-lee-men-TAR noo AH-reh kroos-tah-CHEH-eh

A few helpful points:

• g in regimul sounds like the s in measure
• ce in crustacee sounds like che
• the ending -ee in crustacee is pronounced clearly, not swallowed

So crustacee has three main parts:

• crus-ta-cee
• with the stress on the last part: crus-ta-CHEE-eh / crus-ta-CHEH-eh depending on how finely you represent it for English speakers