Italian Phrase
Qualcuno è allergico alle noci.
Meaning
The sentence states that an unspecified person has a nut allergy. It is a neutral way to alert others that someone cannot eat foods containing nuts, without naming the individual.
When to use
Use this phrase when you need to mention a dietary restriction in a restaurant, at a gathering, or in a medical context—e.g., when reading a menu, informing a host, or discussing health issues with a doctor.
✦Grammar Breakdown
Qualcunoèallergicoallenoci
Qualcuno
Indefinite pronoun meaning 'someone' or 'somebody', used for an unspecified person.
è
Third‑person singular present of the verb *essere* (to be).
allergico
Adjective meaning 'allergic'; it agrees in gender and number with the subject (masculine singular here).
alle
Contraction of *a + le* (to the) used before feminine plural nouns.
noci
Plural of *noce* (nut). In everyday Italian it usually refers to walnuts, but can also mean nuts in general.
🗨In Conversation
Hai notato che Marco non ha mangiato la torta?
Did you notice Marco didn't eat the cake?
Sì, perché qualcuno è allergico alle noci.
Yes, because someone is allergic to nuts.
✕Common Mistakes
Qualcuno è allergico a le noci.
The preposition *a* and article *le* must contract to *alle* before a feminine plural noun.
Qualcuno è allergica alle noci.
Since *qualcuno* is masculine, the adjective should be masculine (*allergico*). Use *allergica* only with a feminine subject (e.g., *qualcuna*).
Qualcuno è allergico alla noce.
Allergies are usually expressed in the plural; *alla noce* (singular) sounds like an allergy to a single walnut.
↔Alternatives
C'è chi è allergico alle noci.
There is someone who is allergic to nuts.
Una persona è allergica alle noci.
A person is allergic to nuts.
Qualcuno non può mangiare le noci per allergia.
Someone cannot eat nuts because of an allergy.
Cultural Tip
In Italy, nut allergies are taken seriously, especially in schools, cafeterias, and restaurants. Many menus now include a "senza noci" (no nuts) label, and chefs are accustomed to preparing separate dishes for allergic guests. Remember that "noci" most often refers to walnuts, so if you need to specify other nuts (e.g., almonds, hazelnuts) you should name them explicitly: *allergico alle mandorle*, *allergico alle nocciole*.