Tengo una alergia alimentaria.

When to use

This phrase should be stated clearly to your server before ordering, especially if you have a severe allergy to certain foods. It's a critical safety measure.

How it works

This sentence uses the verb 'tener' (to have) to express possession of an allergy.

• Tengo
• una alergia alimentaria

Formality

This is a direct and important statement. While not overly formal, its clarity and seriousness make it appropriate for any dining situation where safety is a concern.

Specificity

While 'una alergia alimentaria' is a good general statement, it's often necessary to specify the allergen. For example, 'Tengo alergia a los cacahuetes' (I am allergic to peanuts) or 'Tengo alergia al gluten' (I am allergic to gluten).

Notes

Important safety phrase before ordering. Neutral everyday wording.