Vinegar (red wine)

Why vinegar (red wine) is rated low

Red wine vinegar is low FODMAP at any typical portion, and no FODMAP group reaches a meaningful level at a normal splash. The reason is what is left in the bottle after fermentation: wine turned sour is mostly water and acetic acid, with very little fermentable carbohydrate behind the sharp taste. A dressing for one or a splash into a marinade is a typical portion, so ordinary cooking sits inside it. With vinegar the real risk is almost never the vinegar itself. It is the garlic clove sitting in the marinade, the onion in the bottled dressing, and everything else on the plate adding up alongside it.

What changes your risk

• Serving size Any typical portion is low. That covers the splash you would actually use in a dressing, a marinade, a braise or a pickle. Vinegar is self limiting because nobody drinks it by the glass, so the portion rarely becomes the problem.
• What you mix it with A vinaigrette is usually vinegar plus something else, and the something else is where trouble hides. Crushed garlic, minced shallot, grated onion and honey all change the picture completely, even though the vinegar underneath is fine.
• Garlic flavour without the garlic Garlic infused oil whisked into red wine vinegar gives you a bright, savoury vinaigrette, because the troublesome part of garlic does not dissolve into oil. Keep the oil free of floating pieces of garlic, since solid bits carry what the oil does not.
• Bottled dressings and glazes Shop bought red wine vinaigrettes and thick reduced glazes are a different product from plain vinegar. Read the label for onion powder, garlic powder, honey and added sweeteners before assuming the bottle behaves like the vinegar in it.
• Stacking across the meal A low rating is per serving and not per meal. The vinegar adds little to your total, but a salad dressed with it can still land heavily if the bowl underneath is full of ingredients that each bring their own load.

What else works

Plain unflavoured red wine vinegar is already the friendly option here, so this is less about replacing it than about knowing which bottles beside it on the shelf are not the same thing. Flavoured vinegars, sweetened glazes and creamy bottled dressings all carry added ingredients that the plain vinegar does not, and malt vinegar is a barley product rather than a wine one, so check it on its own page instead of assuming it matches. For a dressing with real depth, build it from red wine vinegar, garlic infused oil, plenty of black pepper, chopped chives and the green tops of spring onions, with a little maple syrup or table sugar if you want the sharpness rounded off. If a recipe calls for a shallot steeped in the vinegar, leave it out rather than swapping in another onion, and lean on herbs for the missing bite.

How to keep it low

Buy the plainest bottle you can find, with wine, water and possibly sulphites on the label and nothing else, and skip anything described as a dressing, a reduction or a glaze. Keep it in a dark cupboard rather than a sunny windowsill, since heat and light dull the flavour long before the vinegar spoils. When you are making a vinaigrette, whisk the vinegar with garlic infused oil first and season at the end, which stops you reaching for a clove out of habit. Eating out, ask for oil and vinegar on the side instead of the house dressing, since the kitchen version almost always starts with shallot or garlic, and the sauce you never see is the one most likely to catch you out.

Common questions

is red wine vinegar low fodmap

Yes. Red wine vinegar is low at any typical portion, which covers the amount you would realistically use in a dressing or a marinade. No FODMAP group reaches a meaningful level at a normal splash.

how much red wine vinegar can i have

Any typical portion is low, so a normal condiment splash is not the thing to watch. What goes in the bottle with it, such as garlic, onion or honey in a prepared dressing, matters far more than the volume of vinegar.

can i have red wine vinegar during the elimination phase

Plain red wine vinegar at any typical portion fits the elimination phase. Flavoured, sweetened or pre mixed dressings are a separate question, since the added ingredients are not covered by this rating. Any reintroduction planning is best done with a dietitian.

is balsamic vinegar the same as red wine vinegar

No. Balsamic is a sweeter, more concentrated product made a different way, with a smaller low serve of its own, so it is not interchangeable with plain red wine vinegar and should be checked on its own page.