What Foods and Drinks are High in Histamine?

This information is for general educational and informational purposes only and is not intended to constitute medical or dietary advice. Individual histamine tolerance varies widely. If you are concerned about your response to specific foods or beverages, consult a qualified healthcare provider.

There are actually three distinct categories related to the consumption of food and beverages that may impact histamine intolerance:

• Foods that naturally contain high levels of histamine
• Foods that liberate histamine from the body's own stores
• Foods, drinks or substances that block DAO enzyme activity, reducing the body's natural capacity to clear histamine from the gut.*

Category 1: High-Histamine Foods — They Bring Histamine In

These foods naturally contain elevated levels of histamine, primarily as a result of fermentation, aging, curing, or bacterial activity over time (such as leftovers). The longer a food is aged or fermented, the higher its histamine content generally becomes.*

• Fermented & Aged Foods:
  • Aged and fermented cheeses — parmesan, blue cheese, cheddar, gouda, brie, camembert, and most hard cheeses
  • Fermented vegetables — sauerkraut, kimchi, pickles
  • Fermented soy products — soy sauce, tamari, miso, tempeh
  • Fermented dairy — yogurt, kefir, sour cream, buttermilk
  • Sourdough bread
  • Vinegar-based condiments — ketchup, mustard, relish, vinegrette based salad dressings 
• Cured & Processed Meats: Salami, pepperoni, prosciutto, bacon, deli meats, hot dogs, and smoked meats of all kinds
• Fish & Seafood:
  • Smoked fish — smoked salmon, smoked mackerel, smoked trout, canned fish — tuna, sardines, anchovies, herring, mackerel
  • Shellfish — shrimp, crab, lobster, clams
  • Note: histamine in fish and seafood builds rapidly after catch — fresh fish handled and eaten promptly is generally lower in histamine than canned, smoked, or previously refrigerated fish

• Leftovers: Cooked proteins of any kind — including chicken, beef, and fish — accumulate histamine as they sit in the refrigerator, even when properly stored. The older the leftovers, the higher the histamine content may be.*

Category 2: Histamine-Liberating Foods — They Release Histamine Already in the Body

A histamine-releasing food doesn't contain much histamine inherently but can encourage the body to release its own stored histamine.* This means the histamine comes from within — from mast cells in the gut wall and surrounding tissues — rather than from the food directly. These foods can add significantly to the overall histamine load even if they don't appear on a high-histamine food list.* 

• Strawberries, raspberries, and other berries
• Citrus fruits — oranges, lemons, limes, grapefruit
• Pineapple, papaya, and kiwi
• Tomatoes and tomato products — pasta sauce, pizza sauce, ketchup
• Avocado
• Chocolate and cocoa products
• Walnuts, cashews, and peanuts
• Egg whites
• Shellfish (also listed above — they both contain histamine and may liberate it as well)

Category 3: DAO Blockers — Reduce Histamine Breakdown

Some substances don't add histamine directly but reduce the body's natural ability to break histamine down by inhibiting DAO enzyme activity in the gut.* When DAO is blocked, histamine from food and drink accumulates more readily — even if the histamine load itself would otherwise be manageable.*

• Alcohol — the most significant DAO blocker in everyday life. Alcoholic beverages, particularly red wine, craft beer, and champagne, are uniquely problematic because they both contain high levels of histamine from fermentation AND directly inhibit DAO enzyme activity, AND can trigger histamine release from mast cells in the gut — a triple effect.* 

Alcoholic beverages, especially red wine and beer, are among the most commonly cited high-histamine foods and drinks.* They occupy all three categories simultaneously: they contain histamine from fermentation, they inhibit the DAO enzyme that would otherwise clear that histamine, and alcohol is broken down in the body into acetaldehyde — a compound that may encourage histamine release from mast cells in the gut wall.* This compound effect is why many people find that wine or beer is a particularly consistent trigger for the experiences they associate with histamine sensitivity.* 

OmneDiem's Drink HD — specifically designed to be taken before consuming alcoholic beverages — supplies DAO enzyme support for exactly this scenario.*  

A Practical Note on Individual Tolerance

Histamine sensitivity is highly individual and dose-dependent.* One person may comfortably enjoy small amounts of aged cheese while another finds even a modest pour of red wine problematic. Factors including gut health, age, hormonal status, genetics, and current medications can potentially influence how much histamine the body can comfortably process at any given time, depending on how these factors interesect in the individual.*

This means the same food may be fine one day and not another — which is one reason histamine sensitivity can feel confusing and inconsistent. Keeping a food and symptom diary and discussing your observations with a healthcare provider is the most reliable way to identify your personal patterns.*

How OmneDiem® DAO Supplements May Help

By supplying the naturally derived Diamine Oxidase (DAO) enzyme — OmneDiem® Histamine Digest® is formulated to support the body's natural histamine breakdown process in the gut, right where dietary histamine is absorbed.* Taken proactively before high-histamine meals or drinks, it may support greater dietary flexibility and comfort.*

OmneDiem® Histamine Digest® —  15,000 HDU · Designed-release capsule · Take before high-histamine meals · Available in 30, 60 & 120 caps*

OmneDiem® Histamine Digest® PureMAX — 40,000 HDU · Highest-potency pure DAOgest® formulation · For those with greater DAO support needs*

OmneDiem® Drink HD — Portable 20-capsule tube · DAO support specifically formulated for before consuming alcoholic beverages*

* These statements have not been evaluated by the Food and Drug Administration. OmneDiem® dietary supplements are not intended to diagnose, treat, cure, or prevent any disease or health condition. The food lists provided in this FAQ are for general educational purposes based on published literature on dietary histamine content and are not exhaustive or individually tailored. Histamine content in foods can vary based on ripeness, storage, preparation method, and individual product formulation. This content does not constitute dietary or medical advice. Individual histamine tolerance varies. Consult your healthcare provider or a registered dietitian for personalized dietary guidance. OmneDiem® Histamine Digest® products contain a porcine-derived ingredient and are not suitable for individuals with pork allergies or those following vegetarian, vegan, kosher, or halal diets.