Is it really the sulphites in red wine?

Usually not, on the available evidence. White wine typically carries more added sulphite than red, so if sulphites were the explanation, white should be at least as bad — and for most people describing a specifically red wine headache, it is not. Sulphite sensitivity is real but is more often reported as a breathing response. Dried apricots are a useful reference point: they are generally much higher in sulphite than wine.

Why do I get a headache from red wine but not white?

Several differences could explain it, and they are worth separating. Red wine carries more histamine, tyramine and tannin than white, and it also tends to be poured larger and drunk later with heavier food. The timing of your headache is the best clue available to you: something within a few hours points more towards the wine itself, while a morning headache points more towards the total dose, hydration and a disrupted second half of the night.

Does drinking water between glasses help?

For some people it seems to take the edge off a morning headache, which is consistent with fluid loss being part of the picture. It is a reasonable thing to try, and it is also a poor test on its own, because people who alternate with water almost always drink less alcohol overall. If you want to know which one is doing the work, change one at a time.

Should I stop drinking red wine altogether?

That is your call, and it is worth making it on evidence rather than folklore. Running a few matched comparisons first tells you whether red is genuinely different for you or whether any similar dose would do the same. If a small amount of alcohol produces a large or unusual reaction, that is worth raising with a clinician rather than experimenting further.

Why Red Wine Gives You a Headache: 4 Suspects

Why red wine gives you a headache: sulphites, histamine, tannins or the dose itself. How to weigh each, plus the white-wine control test.

Two glasses of red at dinner, and the next morning your head aches in a way that the same amount of white wine or beer does not seem to produce. Someone has almost certainly told you it is the sulphites.

That answer is popular and, for most people, probably wrong. The red wine headache is a genuinely common self-reported pattern with at least four plausible explanations behind it, and they point at completely different tests.

Four candidates, and they are not equally likely

Here is the shortlist, ordered roughly by how well each one holds up when people actually check.

Candidate	The claim	How strong the case looks
Alcohol dose and timing	The drink itself, plus fluid loss and a broken night	Strong, and boring, which is why it gets skipped
Histamine and tyramine	Fermentation compounds that some people clear slowly	Plausible, hard to test at home
Tannins	Compounds from skins, seeds and oak	Weak on its own
Sulphites	Added as a preservative	Weakest, and blamed most

None of this is a verdict on your body. It is an order in which to rule things out.

Sulphites: blamed most, responsible least

Sulphites are added to almost all wine as a preservative, and the label warning has made them the default villain.

The awkward detail is that white wine usually carries more added sulphite than red, not less. Red wine's own skin compounds do part of the preserving work, so winemakers often add less. If sulphites were the explanation, white wine should be at least as bad for you — and for most people reporting a specifically red wine headache, it is not.

Pale dried fruit is another useful reference point. Dried apricots are typically far higher in sulphite than a glass of wine. If you eat them without trouble, sulphite is a weaker candidate still.

Sulphite sensitivity is real, but it is more often described as a breathing response than a head one. If you have asthma and notice wine affecting it, that is a conversation for a clinician rather than something to work out from a back label.

Histamine and tyramine: the more interesting candidates

Fermentation produces histamine and tyramine, and red wine tends to carry more of both than white — longer contact with the skins, plus the second fermentation that many reds go through.

Some people appear to clear dietary histamine more slowly than others, and headache is one of the effects commonly reported. Tyramine turns up in the same conversation as aged cheese, cured meats and yeast extract, and some people who get migraine describe those foods as a possible pattern of their own.

This is the candidate most worth taking seriously and the hardest to check at home, because you cannot read histamine off a bottle. What you can do is look sideways: if aged cheddar, salami and long-kept leftovers also cluster near your bad days, that is worth writing down. There is more on that in the calm guide to histamine questions.

Tannins: real compounds, thin case

Tannins are the drying, mouth-puckering compounds from skins, seeds, stems and oak barrels. Red wine has far more of them than white, which makes tannins an attractive explanation mainly because they are the most obvious difference.

The check is easy. Strong black tea, dark chocolate and unripe fruit are also tannin-heavy. If you drink four mugs of builder's tea a day without a headache, tannins alone are unlikely to be your answer.

The unglamorous explanation: dose, water and sleep

Red wine is often poured into a bigger glass, drunk more slowly, later in the evening and alongside a heavier meal. Two "glasses" of red can quietly be a larger dose than two glasses of white, and nobody measures.

Alcohol contributes to headache through more than one route. Fluid loss is the familiar one. The less familiar one is sleep: alcohol tends to make the second half of the night more broken, even when total time in bed looks normal. Both of those land in the morning rather than the evening.

That timing split is the most useful thing on this page:

Headache within one to three hours, while you are still drinking. Points more towards something in the wine itself than the dose.
Headache on waking. Points more towards alcohol volume, hydration and sleep, whatever colour was in the glass.

There is more on the second one in what tends to change the day after drinking and how hydration shows up as headaches and fatigue.

Things people try, and what each one is actually testing

Most of the popular fixes change two variables at once, which is why nobody ever learns anything from them.

Switching to organic or "low-sulphite" wine. Tests the weakest candidate on the list, and usually changes the producer, the style and the price bracket at the same time.
Drinking water between glasses. Tests hydration, and almost always reduces total alcohol as a side effect.
Eating properly first. Slows absorption, and also changes what else was on the plate.
Switching to white or rosé. The most informative swap available, if you hold the dose steady.
Skipping the last glass. Tests dose directly, and is the single change most likely to work.

Pick one at a time. Two changes in one evening tells you nothing you can use.

The white wine control test

Most people never run the one comparison that would separate these. It takes five drinking occasions rather than five days, and it works best spread across a few weeks.

Fix the dose. Two standard measures, actually measured, not free-poured. The same volume every time.
Fix everything you can around it. Similar hour of the evening, food on board, a glass of water alongside.
Alternate the colour. Red, then white, then red, then white — separate occasions, at least a few days apart.
Add a fifth occasion with no alcohol at all, same meal, same hour. This is the arm everyone skips, and it is the one that catches "it was actually the late cheese".
Record two things each time. Anything within three hours, and how your head feels on waking, on a simple 0 to 3 scale.

Read it after all five, not after the first. One bad night proves nothing; the same result twice is where a possible pattern starts.

What the outcomes may suggest:

Red only, both times. Something in red specifically is worth investigating, with histamine and tyramine at the top of the list.
Both colours, much the same. Dose, hydration or sleep is the more likely story.
Neither, this time. Look at what was different on the bad nights: the meal, the hour, the week you were having.

What to write down

Keep it to five fields, or you will stop after a week.

What you drank, in measures, not "a couple"
The time of the last drink
What you ate with it, especially aged cheese, cured meat or anything long-kept
Water alongside, yes or no
Head that evening and on waking, 0 to 3

If you already log meals with photos, keeping the drink and the next-morning note in the same place is what makes the comparison readable a month later. That side-by-side view is the part NutriAI is built around, and it is also perfectly doable in a notes app. If you want to compare tools first, there is a rundown of what to look for in a food and symptom tracker, and a plainer explanation of how the score works if you are curious what a grade is actually estimating.

When to talk to a professional

Take this to a doctor rather than a diary if your headaches are becoming more frequent or more severe, if a small amount of alcohol produces a large reaction, if flushing, a racing heart or breathlessness are involved, or if headaches wake you from sleep. A sudden, severe or unusual headache needs urgent medical attention, not a control test. Notes help in that appointment: they turn "wine sometimes gives me a headache" into dates, measures and timings someone can work with.