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Educational information on nutrition, lifestyle and eye health as a possible complementary support to standard ophthalmic care. No content replaces medical visits, diagnosis or prescribed therapies.
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Histamine Food Table

SIGHI-based classification as an orientative tool for histamine load

Educational information inspired by SIGHI classification. Any temporary food restriction or dietary change should always be discussed and agreed upon with your ophthalmologist and/or nutrition professional.

The idea of the "histamine bucket"

Histamine is one of the mediators involved in inflammatory and allergic responses. In some individuals it may be useful to imagine the body as a "bucket": if the overall histamine load (endogenous plus dietary) exceeds a personal threshold, tissues, including ocular ones, may become more reactive.

A targeted reduction in dietary histamine, when considered appropriate by the specialist, may help keep the “bucket” closer to the individual tolerance level and potentially facilitate symptom management in combination with prescribed therapies.

Histamine Level

Explore food categories

The categories below are based on an orientative classification of histamine content or impact. Click the buttons to view examples of foods and recall their level of attention.

Ocular profiles: how histamine load may be considered

Allergic eye conditions (e.g. vernal or atopic forms)

In the presence of ocular allergies, some integrative approaches also consider dietary histamine load as one possible factor in reducing overall immune pressure. In this setting, paying closer attention to these foods might, in selected cases, contribute to more manageable symptoms when combined with standard ophthalmic therapies. Further discussion is available on the Ocular allergies page.

Chronic ocular surface discomfort and mucosal inflammation

In some patients with ocular surface complaints, it has been hypothesised that histamine sensitivity may play a role in modulating burning, redness or foreign‑body sensation. A time‑limited, lower‑histamine protocol (e.g. SIGHI 0–1) is sometimes used, under medical supervision, as an exploratory tool to see whether symptoms become more stable. See the Dry eye section for additional context.

Deontological note

The information provided is intended for educational purposes only and does not replace medical consultation.

Any nutritional strategy, particularly when involving restrictions or relevant changes, should be tailored to personal history and tolerance and agreed upon with your Physician or Ophthalmologist.