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Low-Histamine Diet – Foods and Practical Tips

A low-histamine diet helps people with histamine intolerance reduce symptoms such as headaches and skin reactions by avoiding foods high in histamine.

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Things worth knowing about "Low-Histamine Diet"

A low-histamine diet helps people with histamine intolerance reduce symptoms such as headaches and skin reactions by avoiding foods high in histamine.

What Is a Low-Histamine Diet?

A low-histamine diet is a specialized eating plan recommended for individuals with histamine intolerance. Histamine is a naturally occurring biogenic amine that plays important roles in the body, including immune responses, gastric acid secretion, and neurotransmission. In people with histamine intolerance, the body is unable to break down ingested histamine efficiently, leading to a range of uncomfortable or even debilitating symptoms. By carefully adjusting food choices, these symptoms can be significantly reduced.

Causes of Histamine Intolerance

The most common cause of histamine intolerance is a deficiency or reduced activity of the enzyme diamine oxidase (DAO), which is responsible for breaking down histamine in the gut. Contributing factors include:

Genetic predisposition
Inflammatory bowel diseases (e.g., Crohn's disease, ulcerative colitis)
Certain medications (e.g., some antibiotics, anti-inflammatory drugs)
Alcohol consumption, which inhibits DAO activity
Estrogen dominance in women, as estrogen can impair histamine breakdown

Symptoms of Histamine Intolerance

Symptoms of histamine intolerance vary widely and may affect multiple organ systems simultaneously. Common complaints include:

Headaches and migraines
Skin reactions: flushing, itching, hives (urticaria)
Gastrointestinal issues: bloating, diarrhea, abdominal cramps
Runny or blocked nose (rhinitis)
Heart palpitations (tachycardia)
Dizziness and fatigue
Menstrual irregularities in women

Core Principles of a Low-Histamine Diet

The goal of a low-histamine diet is to minimize the daily intake of histamine from food. This involves not only avoiding histamine-rich foods but also limiting so-called histamine liberators (foods that trigger the release of histamine in the body) and DAO inhibitors (substances that block the enzyme responsible for breaking down histamine).

Foods to Avoid

Histamine-rich foods: Aged cheeses (e.g., gouda, parmesan, cheddar), fermented products (sauerkraut, kimchi, yogurt, kefir), processed and smoked meats (salami, ham), canned fish, red wine, beer, vinegar
Histamine liberators: Tomatoes, strawberries, citrus fruits, pineapple, papaya, spinach, eggplant, chocolate, cocoa, nuts (especially walnuts and cashews)
DAO inhibitors: Alcohol (especially red wine and beer), energy drinks, black and green tea

Well-Tolerated Foods

Fresh, unprocessed meat and freshly caught fish (prepared immediately after purchase)
Fresh vegetables (except histamine-rich varieties): broccoli, zucchini, carrots, lettuce, pumpkin
Most grain types: rice, oats, corn, millet
Fresh herbs (except spinach)
Extra virgin olive oil, coconut oil
Fresh eggs (generally well tolerated)
Still mineral water, herbal teas

Diagnosis and Approach

Histamine intolerance is typically diagnosed through an elimination and provocation diet carried out under medical supervision. Histamine-rich foods are completely removed from the diet for several weeks to observe whether symptoms improve. Trigger foods are then reintroduced step by step to identify individual intolerances. In addition, blood tests to measure DAO activity or histamine levels may be performed to support the diagnosis.

Practical Tips for Daily Life

Always buy fresh foods and prepare them quickly, as histamine levels increase during storage and maturation
Consume leftovers promptly or freeze them, as reheating stored food can raise histamine content
Keep a food diary to identify personal triggers more effectively
Consider DAO enzyme supplements if needed, but always consult a healthcare professional first
Ensure adequate intake of vitamin C, vitamin B6, and copper, as these nutrients support histamine breakdown

Important Note

A low-histamine diet should not be followed long-term without professional guidance, as it may lead to nutritional deficiencies. Consulting a registered dietitian or a nutrition specialist is strongly recommended to ensure a balanced diet and to identify individual food tolerances over time.

References

Maintz L, Novak N. Histamine and histamine intolerance. American Journal of Clinical Nutrition. 2007;85(5):1185-1196.
Reese I et al. Guideline on the management of suspected histamine intolerance from oral intake. Allergologie. 2017;40(5):233-240.
European Academy of Allergy and Clinical Immunology (EAACI). Position Paper: Histamine Intolerance. Allergy. 2021;76(12):3515-3525.

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