Is alcohol low FODMAP? Wine, beer and spirits explained

If you drink alcohol, the low FODMAP diet does not automatically mean a glass of water at every party. Many common drinks have a low FODMAP serving in Monash University testing.

But two things are worth knowing. A few drinks carry excess fructose. And alcohol affects the gut in ways that have nothing to do with FODMAPs.

Which drinks have a low FODMAP serving?

According to Monash University testing, these drinks have a low FODMAP serving at a standard measure:

• Beer
• Red and white wine
• Sparkling wine
• Gin, vodka and whisky

Serving size still matters. Monash lists red wine as high FODMAP in a large serving, above 250 ml, so a single glass and a whole evening of refills are not the same. For the current tested servings, check the Monash University FODMAP app. Our article on FODMAP serving sizes explains why the amount changes the rating.

Which drinks are high FODMAP?

Monash lists these as high FODMAP at a typical serving:

• Rum, because it carries excess fructose
• Sticky wines, the very sweet dessert wines, also because of excess fructose

Cider is made from apples, and apples are high in both excess fructose and sorbitol. How much remains in the glass depends on the cider and on any juice added after fermentation. Without lab data for a specific product, cider is one to explore during reintroduction rather than a known quantity.

Why beer can be low FODMAP

Beer is made from grains such as barley and wheat, and those grains contain fructans. So the low FODMAP rating can seem strange.

The answer is fermentation. During brewing, yeast feeds on the carbohydrates in the grain and turns much of them into alcohol. The fructans are largely used up along the way, so the finished beer contains far fewer FODMAPs than the grain it started from.

Beer still contains gluten, which matters for coeliac disease but is a separate question from FODMAPs. Our article on FODMAPs vs gluten explains the difference.

Watch the mixer

A gin and tonic and a gin with apple juice start from the same spirit. The mixer changes the FODMAP profile.

• Apple and pear juice carry excess fructose.
• Some soft drinks are sweetened with high fructose corn syrup or fruit juice concentrates.
• Soda water and fresh lime or lemon juice are low FODMAP options.
• Tonic water is usually sweetened with sugar. In some countries it can contain high fructose corn syrup, so check the label.
• Ready-to-drink cocktails and spritzes can contain fruit juices, syrups or flavourings. Check the ingredient list.

Monash suggests avoiding high FODMAP juices and soft drinks as mixers, and alternating alcoholic drinks with water or mineral water. Our drink aisle guide covers the label terms to look for on mixers and soft drinks.

Alcohol affects the gut beyond FODMAPs

A drink can be low FODMAP and still bother your gut.

According to Monash University, alcohol can irritate the gut and may affect how the gut moves, absorbs and responds to inflammation. Monash also notes that about one third of people with IBS report symptoms from alcohol.

So if you feel unwell after a night out, the cause is not necessarily FODMAPs. The amount of alcohol, the food you ate with it and how late you ate can all play a part.

Food, drinks and FODMAP stacking

Drinks are often part of a bigger occasion: a party, a dinner, a holiday table. That is where FODMAPs can add up.

Several low FODMAP servings in one sitting can combine into a larger total. This is often called FODMAP stacking. Monash recommends being mindful of food choices when alcohol is part of the evening. Eating something alongside your drink is a reasonable habit too.

Fatty party food is worth a mention. Monash describes high-fat party food as a possible gut irritant, whether or not it contains FODMAPs.

During the elimination phase and after

During the elimination phase, it can help to note what you drank and how much in your symptom diary. That makes it easier to tell a FODMAP reaction from an alcohol reaction.

Later, reintroduction can show whether excess fructose bothers you. If it does not, drinks like rum or a sweet wine may fit back into your diet. If you have questions about alcohol and your health in general, your doctor or dietitian is the right person to ask.

Let Belly Buddy check the mixer

A bottle of spirits rarely has an ingredient list. A can of cocktail or a bottle of tonic usually does. Scan it with Belly Buddy to get a clearer view of its FODMAP profile. Belly Buddy flags declared sources of excess fructose, polyols and other FODMAPs when they appear in the ingredient list. It cannot tell you how your gut responds to alcohol.

Our rating method explains how Belly Buddy analyses ingredients and reaches a verdict.

Belly Buddy is not affiliated with or endorsed by Monash University. Our FODMAP information is informed by publicly available scientific sources, including research from Monash University.