Yes, wine contains histamines. Red wine has the highest levels, with a median concentration around 2.45 mg/L, while white wine comes in much lower at a median of about 0.28 mg/L. These histamines form naturally during fermentation, and for most people they’re harmless. But if your body struggles to break histamine down, even a glass or two can trigger noticeable symptoms.
How Histamines End Up in Wine
Histamines aren’t added to wine. They’re a byproduct of fermentation. Specifically, lactic acid bacteria break down amino acids in grape juice through a process called decarboxylation, converting the amino acid histidine into histamine. This happens primarily during malolactic fermentation, a secondary fermentation step where bacteria soften the wine’s acidity and develop its flavor. The same bacteria that improve a wine’s taste are the ones producing histamine as a side effect.
Yeast also contributes small amounts of histamine during primary fermentation and as yeast cells break down afterward. But lactic acid bacteria are the main drivers. Not all bacterial strains produce the same amount. Some are heavy histamine producers, and winemakers can now use genetic testing to identify and avoid those strains. Still, the process is difficult to control completely, and histamine levels vary widely from bottle to bottle.
Red Wine vs. White Wine
Red wine consistently contains more histamine than white. The average histamine level in red wine is roughly 2.4 mg/L, with the top 5% of wines reaching 9 to 12 mg/L. White wine averages around 0.8 mg/L, with the highest levels rarely exceeding 2.5 mg/L. That means a typical red wine carries about three times as much histamine as a typical white.
The difference comes down to winemaking. Red wines undergo longer skin contact during fermentation, which provides more amino acids for bacteria to convert. Red wines also almost always go through malolactic fermentation, the bacterial process most responsible for histamine production. Many white wines skip this step entirely, which keeps their histamine levels low. Sparkling wines can also accumulate significant histamine. One case of histamine intoxication from sparkling wine on tap involved levels near 10 mg/L, comparable to a high-histamine red.
Why Wine Hits Harder Than Other Histamine Sources
Wine delivers a double punch when it comes to histamine. It’s not just that wine contains histamine on its own. The alcohol in wine actively makes your body worse at clearing histamine out.
Your body normally breaks down histamine using an enzyme called diamine oxidase (DAO). Alcohol and its breakdown product, acetaldehyde, interfere with this enzyme, slowing histamine elimination. At the same time, alcohol triggers your immune cells to release additional histamine from their internal stores. So you’re taking in histamine from the wine, releasing more histamine from your own cells, and simultaneously losing your ability to get rid of it. This is why wine can cause stronger reactions than eating other histamine-containing foods like aged cheese or fermented vegetables, even when those foods contain similar histamine levels.
Symptoms of Histamine Sensitivity to Wine
People with histamine intolerance, often caused by low DAO enzyme activity, can experience a range of symptoms after drinking wine. The most common include flushing, headache, nasal congestion, and skin itching or hives. Some people also experience diarrhea, drops in blood pressure, heart rhythm changes, or asthma-like breathing difficulty. These symptoms typically appear within an hour of drinking and can last several hours.
Histamine intolerance isn’t a true allergy. It’s a capacity problem. Your body can handle a certain amount of histamine, but when intake exceeds your ability to break it down, symptoms appear. This means the reaction often depends on the total histamine load from your entire meal, not just the wine. A glass of red wine alongside aged cheese and cured meat, for instance, stacks histamine from multiple sources at once.
What About Sulfites and Headaches?
Many people blame sulfites for wine headaches, but the evidence points elsewhere. Sulfites are preservatives added to most wines, and they can trigger asthma symptoms in sensitive individuals. But researchers at UCLA found that red wines made without sulfites, and wines with low histamine levels, still triggered headaches in susceptible people. Their research points to quercetin, a natural compound found in grape skins, as a likely culprit for the classic “red wine headache.” Quercetin appears to interfere with alcohol metabolism in a way that causes headaches specifically.
So while histamines in wine are real and can cause flushing, congestion, and other symptoms, the headache you get from red wine may actually have a different cause entirely. The two problems overlap, which is part of why wine reactions have been so hard to pin down.
No Official Limits Exist
There are no international regulations capping histamine levels in wine. The European Union sets histamine limits for fish products but not for wine or other fermented foods. A handful of EU countries, including Germany, France, Belgium, and the Netherlands, have set voluntary guidelines ranging from 2 to 10 mg/L, but these are optional and not consistently enforced. The European Food Safety Authority has acknowledged the gap and called for more research on safe thresholds.
This means you can’t rely on wine labels to tell you how much histamine is in a bottle. Histamine content isn’t tested or disclosed in most markets. If you’re sensitive, practical strategies include choosing white wines over reds, avoiding wines that have undergone malolactic fermentation (some producers note this), and paying attention to which specific wines cause you problems. Younger wines don’t necessarily have less histamine, since most of it forms during fermentation rather than aging. Research on wines aged in oak found that while histamine was produced early in the aging process, it didn’t continue to accumulate over time.
Antihistamines and Wine
Some people take over-the-counter antihistamines before drinking wine to prevent symptoms. While antihistamines can reduce histamine-driven flushing and congestion, combining them with alcohol increases drowsiness, dizziness, and impairment. The National Institute on Alcohol Abuse and Alcoholism lists antihistamines among medications that interact harmfully with alcohol, noting increased sedation and overdose risk even with common options like loratadine. If you find yourself routinely needing medication to tolerate wine, that’s a signal worth discussing with a healthcare provider rather than managing on your own.