Some foods hold an impressive ability to work as anti-histamine foods. For this reason, it is great to include these nutritious foods on a low-histamine diet or any healthy diet.

In this post, learn about the top antihistamine foods, food preparation tips, how Mediator Release Testing (MRT) can personalize your approach, supplements, and meal plans to keep your body feeling free of allergy symptoms all year long.

How Histamine Works in the Body

Histamine is a natural chemical messenger your body produces. It plays important roles in immunity, digestion, and brain function. Problems arise when histamine levels climb too high — whether from eating high-histamine foods, a deficiency of the enzyme that breaks it down (DAO), or overactive mast cells that release histamine in response to triggers.

The Histamine Imbalance Pathway
High-Histamine Foods
+
Low DAO Enzyme
+
Mast Cell Activation
Histamine Overload → Symptoms
Headaches
Hives / Itching
Digestive upset
Runny nose
Brain fog
Fatigue

The good news? Strategic food choices can interrupt this cycle. Many foods are rich in compounds — particularly quercetin, luteolin, and DAO co-factors — that stabilize mast cells, inhibit histamine production, and boost the body’s own histamine-clearing machinery.

35 Anti-Histamine Foods

Anti histamine foods including onions, ginger, celery, organ meats, thyme, chia seeds, nettles, cherries, and bean sprouts arranged on a white background by The Healthy RD

Here is a list of antihistamine foods you can include in your diet regularly. After you add these in, also make sure to minimize high-histamine foods if you are sensitive.

1
Mast Cell Stabilizer

A natural antihistamine that works as well as or better than some antihistamine medications. Sip on ginger tea or add it to broccoli ginger stir fry or carrot ginger soup.

2
Onions
Quercetin

Get a gold star for reducing histamine levels because of their exceptionally high quercetin content. Aim to have onions every day if you are working on reducing the histamine load in your diet.

3
Apples
Quercetin

One of the many antihistamine-rich foods. Eating apples with the skin on is an easy way to increase your antioxidant intake while dampening histamine release. An apple a day may help keep allergies away.

4
Parsley
Luteolin

Helps dampen inflammation that can cause an overactive histamine release. Enjoy parsley with just about any savory meal or in a green smoothie to help support healthy histamine levels.

5
Thyme
Mast Cell Stabilizer

An herb that helps reduce histamine reactions in the body according to research. Easy to add to roasted meats, soups, and vegetables.

6
Luteolin

Rich in the antioxidant luteolin which helps stabilize histamine-releasing cells (mast cells). Sage helps reduce the overall histamine burden in the body.

7
Luteolin

Another herb that is rich in luteolin which curbs histamine production and release in the body.

8
DAO Support

Rich in oleic acid which helps dampen histamine by increasing enzymes that break down histamine in the body called DAO. Introduce slowly if you have severe histamine intolerance.

9
Raspberries
Quercetin

Contain the stabilizing antioxidant quercetin and are also very low in histamine content — making them a double win for anyone with histamine intolerance.

10
Cherries
Quercetin + Vitamin C

Contain both vitamin C and quercetin, which together reduce allergy symptoms. Choose fresh cherries or freshly pressed cherry juice for the most benefit.

11
Capers
Highest Quercetin Food

The food that contains the highest quercetin of all. Very helpful for reducing allergic immune responses. Some people with severe histamine intolerance may need to introduce these slowly.

12
Radicchio
Highest Luteolin Food

By far the highest food source of the antioxidant luteolin. Luteolin decreases histamine levels by directly stabilizing mast cells and inhibiting inflammatory pathways.

13
Luteolin

Very rich in luteolin as well as vitamin C, making bell peppers a very suitable food for anyone with histamine intolerance or mast cell issues.

14
Luteolin + Apigenin

Contains antioxidants including apigenin and luteolin that help curb histamine release by reducing mast cell activation. Try celery juice for a concentrated dose.

15
Turmeric
Mast Cell Stabilizer

Helps to reduce the build-up of histamine-producing mast cells. Add this antioxidant-rich spice to both sweet and savory dishes like chicken curry.

16
Anti-Inflammatory

Both fennel seeds and fennel bulbs are helpful for digestive function and dampen inflammation. By decreasing inflammation, fennel helps calm allergy symptoms.

17
Adaptogen + Anti-Histamine

Dampens inflammation and helps the body adapt to stress — a known histamine trigger. Most often found in teas and tinctures; not to be confused with sweet basil.

18
Triple Action

My personal favorite histamine-reducing food. It works in 3 ways: reduces inflammation, blocks H1 histamine receptors, and stabilizes mast cells. Nettles supplements are also available for those who don’t want to cook with them.

19
Buckwheat
Mast Cell Stabilizer

Helps to lower histamine by reducing histamine release from mast cells. Gluten-free, nutrient-dense, and great in pancakes, soba noodles, or as a rice substitute.

20
Magnesium-Rich

Rich in magnesium, a nutrient that helps regulate histamine in the body. Magnesium also helps prevent the conversion of histidine into histamine.

21
Black Rice
Anti-Inflammatory

Decreases inflammatory compounds in the body that can trigger allergic histamine release. Available in most supermarkets and a beautiful visual addition to any dish.

22
Bean Sprouts
DAO Enzyme Source

Contain the enzyme DAO (diamine oxidase) that breaks down histamine directly. This makes them essential for an antihistamine diet — especially helpful eaten fresh.

23
Pea Sprouts
Highest DAO Food

Also rich in DAO enzyme. Foods that block histamine before it enters circulation are particularly valuable. Recent Phase I trials (2024–2025) are now investigating high-dose pea sprout DAO extracts with excellent safety profiles.

24
Fresh Fish
Omega-3 + DAO SupportOmega-3

Contain omega-3 fatty acids that help make the DAO enzyme. Fresh is critical — never canned or aged fish, which accumulate histamine rapidly. See cod liver oil vs fish oil for supplementing omega-3s.

25
Fresh Meats
Mineral-Rich

Help lower histamine levels because they are rich in minerals and protein needed for a balanced immune response. Always fresh, never processed or aged — histamine accumulates with time and temperature.

26
DAO-Rich + Immune Support

May not come to mind as antihistamine foods, but they help support a healthy immune system. Kidney organ meats are particularly useful because they contain a lot of DAO enzyme. See why organ meat quality matters.

27
B6 + B12 + Riboflavin

Contain nutrients that support healthy immunity, including vitamin B6, iron, riboflavin, and vitamin B12 — all cofactors that help regulate histamine response.

28
Hulled Pumpkin Seeds
Magnesium-Rich

Rich in magnesium, which helps prevent the conversion of histidine into histamine. A great snack for anyone managing histamine intolerance.

29
Almonds
Omega-9 + Magnesium

Nutrient-rich with multiple antihistamine compounds including omega-9 fatty acids, magnesium, and antioxidants. Best introduced after a low histamine period, as they can be a trigger food for some people.

30
Black Tea / Oolong Tea
Net Anti-Histamine

May contain trace histamine but the big picture is positive: research shows these teas reduce histamine production in the body, giving a net anti-histamine effect.

31
Chrysanthemum Flower Tea
Luteolin-Rich

An herbal infusion that is rich in luteolin, which helps reduce histamine amounts in the body. As a bonus, it also reduces uric acid levels.

32
Quinoa
Copper + Mineral-Rich

Rich in copper and other nutrients that help the body break down histamine. Rinse or soak before cooking to reduce saponins and improve digestibility.

33
Artichoke Hearts
Luteolin

Rich in the flavonoid luteolin which stabilizes the cells that store histamine. Artichokes help reduce overactive histamine response and are also excellent for liver health.

34
Multi-Action

Top-notch for helping neutralize toxins while also reducing the body’s histamine levels. For an extra potent form, choose broccoli sprouts.

35
Leafy Greens (except spinach)
Luteolin + Quercetin

Great for antihistamine effects. Best choices: watercress, arugula, leaf lettuce, Romaine lettuce, collard greens, and kale. Note: spinach is relatively high in histamine and should be minimized.

💡
Pro Tip: Freshness Is Everything

Histamine accumulates in food as it ages. All 35 foods above work best when eaten as fresh as possible — and especially fresh-cooked. Freeze leftovers immediately to prevent histamine buildup.

🛡️
Part of The Healthy RD’s Complete Guide

The Ultimate Gut Health Guide — leaky gut, the microbiome & why gut healing reduces histamine intolerance →

Read the Guide

MRT Testing for Histamine Issues: A Registered Dietitian’s Personal Account

As a Certified LEAP Therapist (CLT) and registered dietitian with 25 years of clinical experience, I have used the Mediator Release Test (MRT) with many clients experiencing chronic histamine-related symptoms — and I have personal experience with it myself. Here is what you need to know.

What Is the MRT Test?

The Mediator Release Test is a specialized blood test that goes beyond traditional allergy testing. While standard IgE allergy tests only detect one type of immune reaction, the MRT measures the actual release of inflammatory mediators — including histamine, cytokines, leukotrienes, and prostaglandins — from your white blood cells when exposed to specific foods and chemicals.

The MRT tests reactivity to 176 foods and food chemicals, providing a color-coded result (reactive, moderately reactive, or non-reactive) that serves as a personalized roadmap for building an anti-inflammatory diet.

How the MRT Works
Blood sample drawn
Exposed to 176 foods
WBC volume change measured
🟢 Non-Reactive — Safe foods
🟡 Moderate — Limit these
🔴 Reactive — Eliminate

Why MRT Matters for Histamine Intolerance

Many people with histamine intolerance don’t just have a simple problem with histamine-rich foods — they have broader food reactivity that worsens the overall histamine burden. The MRT can identify these hidden triggers that a standard low-histamine diet elimination would miss.

Food sensitivities detected by MRT cause white blood cells to release histamine and other inflammatory mediators. Eliminating these reactive foods can dramatically reduce the total “histamine load” your body has to manage — even if those foods aren’t traditionally considered “high histamine” foods.

My Personal Experience with MRT and Histamine

“When I finally did MRT testing on myself, the results were genuinely eye-opening. I had been carefully following a low-histamine diet for months with only partial relief. My MRT results revealed several unexpected reactive foods I would never have guessed — foods I was eating regularly because they were ‘safe’ on standard low-histamine lists. Within 10 days of eliminating my personal reactive foods, the chronic headaches and skin flushing I had attributed to histamine improved dramatically. The experience deepened my appreciation for how individualized histamine intolerance truly is.”

— Heidi Moretti, MS, RD, CLT, The Healthy RD

“I had been told by multiple practitioners that my symptoms — brain fog, chronic bloating, skin reactions — were ‘just anxiety.’ After MRT testing revealed strong reactivity to several foods I ate daily, and I followed the LEAP elimination protocol, I experienced more relief in three weeks than I had in three years. Knowing my personal reactive foods, not just generic histamine lists, was the game-changer for me.”

— Patient account shared with permission, name withheld

“As someone with confirmed mast cell activation, I had tried every low-histamine protocol I could find online. My MRT results showed I was actually tolerating many ‘high histamine’ foods fine, but reacting strongly to some ‘low histamine’ foods that were inflammatory for my immune system. Working with my dietitian on a LEAP protocol based on my personal MRT results was the most effective dietary intervention I’d tried.”

— Shared by a CLT-supervised patient, identity protected

The MRT Testing Process: Step by Step

  1. Consult with a CLT (Certified LEAP Therapist) — a dietitian trained to interpret MRT results and build your personalized protocol.
  2. Blood draw — a simple blood sample is sent to Oxford Biomedical Technologies, the lab behind the patented MRT.
  3. Results in 2–3 weeks — you receive a color-coded report showing your reactivity to 176 foods and chemicals.
  4. Start with your greenest foods — for the first 7–10 days, eat only your lowest-reactive foods. Most people notice significant symptom relief in this window.
  5. Gradually reintroduce — add moderately reactive foods back one at a time while monitoring for reactions.
  6. Rotation diet — move to a rotation diet for long-term immune tolerance maintenance.
⚠️
Important Note

MRT is not a diagnostic test for histamine intolerance or any medical condition. It is most useful as part of a broader clinical assessment. Always work with a qualified healthcare provider. Some unexpected foods may show reactivity — this does not mean those foods are inherently “bad,” but that your immune system is currently reacting to them. Reactivity can diminish over time with gut healing.

If you suspect food sensitivities are worsening your histamine issues, MRT testing through a CLT is worth exploring. It pairs powerfully with the antihistamine foods listed above — because knowing which foods are inflammatory for you personally takes the guesswork out of your histamine protocol.

New Research on Anti-Histamine Foods (2024–2025)

The science on histamine, mast cells, and food continues to advance. Here are the most relevant updates since this post was first published.

🔬 Luteolin Outperforms Cromolyn (2024)

A 2024 human mast cell study published in International Archives of Allergy and Immunology found that luteolin is more potent than cromolyn sodium — a prescription mast cell stabilizer drug — at blocking histamine and mediator release from cultured human mast cells. This validates the focus on luteolin-rich foods like radicchio, celery, green peppers, and parsley.

Tsilioni & Theoharides, Int Arch Allergy Immunol. 2024;185(8):803-809.

🔬 Pea Sprout DAO Extracts Show Promise (2024–2025)

Emerging Phase I clinical trials on high-dose, plant-based DAO extracts derived from green pea sprouts have shown excellent safety profiles even at doses 50 times higher than standard commercial DAO supplements. This supports the value of both eating pea sprouts and considering DAO enzyme supplementation for histamine intolerance.

🔬 Quercetin Bioavailability Breakthrough (2024)

A 2024 meta-analysis of human studies found that delivery technology dramatically improves quercetin bioavailability — up to 62× with certain formulations (phytosome forms showing ~20× improvement). This means the quercetin you consume from food and supplements is now much more reliably absorbed when using modern formulations. For food sources, eating quercetin-rich foods with fat-containing meals also improves absorption.

🔬 Gut Healing Reduces Histamine Intolerance

Emerging research continues to link intestinal permeability (leaky gut) with histamine intolerance. When the gut lining is compromised, histamine passes more readily into the bloodstream and the DAO enzyme is reduced. This reinforces why gut healing strategies — including the foods and supplements on this list — can produce lasting relief rather than just managing symptoms temporarily. See The Healthy RD’s Comprehensive Leaky Gut Diet Guide for the full picture.

Key Anti-Histamine Mechanisms at a Glance
🛡️
Mast Cell Stabilization
Quercetin, Luteolin, Nettles
⚗️
DAO Enzyme Support
Pea Sprouts, Kidney, B6, Copper
🔥
Inflammation Reduction
Ginger, Turmeric, Omega-3s
🧬
Histamine Degradation
DAO Foods, Magnesium, Copper

How to Cook Your Foods to Lower Histamine Levels

If you want to reduce your histamine levels, it is ideal to eat foods fresh and freshly cooked. The method of preparation matters significantly.

🫕

Boil when possible. Boiling foods helps to decrease the histamine content. Frying may increase it.

❄️

Freeze leftovers immediately. Histamine accumulates as food ages at room or refrigerator temperature. Don’t let cooked foods sit.

🛒

Buy fresh, eat fresh. Foods have less histamine when they are consumed fresh. Shop for meat and fish frequently in small amounts.

🚫

Avoid fermented and aged foods during high symptom periods. These accumulate the most histamine over time.

🍳
The Freshness Rule

When it comes to histamine, freshness is the single most important factor. A “high histamine” food eaten perfectly fresh will often cause fewer problems than a “low histamine” food that has been sitting out or improperly stored.

Natural Antihistamine Supplements

Sometimes people need a little extra antihistamine boost from natural antihistamine supplements. Good choices include:

Vitamin C

Reduces histamine production. The most effective form is liposomal vitamin C.

Binds allergens so that allergy symptoms are reduced. Supports gut barrier integrity too.

Butterbur

Acts like a natural antihistamine without the drowsy side effects of antihistamine drugs.

Bromelain

Helps to reduce an overactive immune response to allergens. Best taken away from meals for anti-inflammatory effect.

Certain strains help break down histamine — especially soil-based probiotics, Saccharomyces boulardii, and Bifidobacterium longum.

Quercetin

Effective and safe antihistamine. 2024 research shows phytosome (liposomal lecithin) forms improve absorption up to 20×. Take 500–1,000 mg/day with a fat-containing meal.

Natural histamine-degrading enzymes. Very effective in reducing histamine levels; take before meals that may contain histamine.

Luteolin

A 2024 human study found luteolin more potent than prescription cromolyn for mast cell stabilization. 100–300 mg/day; liposomal forms improve bioavailability.

Ashwagandha

An adaptogenic herb that helps calm down allergy symptoms by reducing histamine release. Also helps with the stress-histamine connection.

High Histamine Foods to Know About

Fermented foods have gotten a reputation for high histamine content, but it’s nuanced. Many fermented foods are high in biogenic amines similar to histamine, while some truly do have a high histamine content.

⚠️ Highest Histamine Foods

✅ Histamine-Liberators to Watch

  • Citrus fruits (for some)
  • Tomatoes (for some)
  • Avocado
  • Canned fish/tuna
  • Leftovers (any)
  • Vinegar-based foods
  • Strawberries
  • Pineapple
  • Artificial food dyes
  • Preservatives

Alcohol is worth highlighting separately because it causes the body to have a reduction in histamine breakdown — making it a double problem: it contains histamine AND blocks DAO enzyme activity.

🧩
Individual Variation Matters

Some people with histamine intolerance also react to foods high in oxalates and foods with lectins. You may need to individualize your diet to your own unique needs — which is exactly where MRT testing can help.

Low Histamine Foods

Besides the antihistamine foods listed above, many foods are low in histamine and suitable for your daily diet. These include:

✅ Grains & Starches

✅ Vegetables & Fruits

*You may notice that tomatoes and citrus fruits appear on some “high histamine” lists. However, research shows these foods are actually low in histamine amount — though some people do react to them as histamine liberators. If you notice reactions, minimize these foods in your diet.

🌿
The Ultimate Gut Health Guide

Leaky gut, the microbiome & why gut healing is the root cause solution for histamine intolerance →

Read the Guide

Meal Planning with Anti-Histamine Foods

Not sure what to eat when you are trying to reduce your histamine levels? Here are some examples of meal plans for you. Make sure to avoid anything you personally struggle to tolerate — and if you have done MRT testing, use your green-category foods as the foundation.

🌅 Day 1
Breakfast
Lunch
Dinner
  • Baked chicken thighs drizzled with extra virgin olive oil and topped with parsley
  • Baked potatoes with chopped green onions
  • Sautéed green peppers and onions
  • Holy basil tea
🌅 Day 2
Breakfast
Lunch
Dinner
🌅 Day 3
Lunch
  • Broccoli salad with olive oil dressing
  • Hard-boiled eggs
  • Tulsi turmeric ginger tea (Organic India brand)
Dinner
🌿
Supplement Your Gaps

You can certainly supplement organ meats or supplement ginger, nettles, chrysanthemum, or turmeric if they don’t suit your taste buds. Add some of the suggested supplements above for a quicker impact on your histamine levels.

Medical Disclaimer: The information on this website has not been evaluated by the Food & Drug Administration or any other medical body and is shared for educational purposes only. While The Healthy RD’s posts are backed by research, you are unique, so you must seek care from your own dietitian or healthcare provider. This post is not meant to diagnose or treat any conditions. Consult your doctor or healthcare provider before making changes to your supplement regimen or lifestyle.
Close up picture of Heidi Moretti, MS, RD of The Healthy RD

Heidi Moretti, MS, RD, CLT is The Healthy RD. A registered dietitian for 25 years and bestselling author of Cortisol Fix, Period Fix, and Gut Fix, Heidi has a passion for functional nutrition and natural medicine. As a Certified LEAP Therapist (CLT), she has worked with hundreds of patients using MRT testing to individualize antihistamine and elimination dietary approaches.