Vodka

Low FODMAP

Tested serving

1 shot (30mL) Low

Vodka is Low FODMAP at a standard 1 shot (30mL) serving, with no FODMAP subgroups elevated at that amount.

Vodka is a distilled spirit, and the distillation process leaves it essentially free of the fermentable carbs that trigger symptoms, so at 1 shot (30mL) it tests Low FODMAP with no subgroups elevated.
Keep in mind that vodka is often mixed with other drinks, and it is the mixers (like certain fruit juices or sodas) that tend to carry FODMAPs, so the base spirit is usually the gentle part of the glass.

When building a drink, pair your shot with a simple low-FODMAP mixer like soda water and a squeeze of lime, and remember alcohol itself can be a gut irritant, so go easy.

Why vodka is rated low

At 1 shot (30mL), the serving the published data tests, vodka comes in low with no FODMAP subgroup recorded as raised. That is the whole reading, and it applies to the plain spirit rather than to the drink it ends up in. Vodka is almost always mixed, so the glass in your hand is usually a question about the juice, the soda or the premade mix, not the spirit. Volume matters too: a double, a highball built on two measures and an evening of rounds all pass 1 shot (30mL), and nothing larger has been tested here.

What changes your risk

Measure the shot The low verdict is tied to 1 shot (30mL). Free pouring at home and ordering doubles are the two easiest ways to drift past it without noticing.
The mixer is the drink Vodka takes on whatever it is poured into. Orange juice, pineapple and lime are workable, while apple, pear and mango juices are not, and any juice packs several pieces of fruit into one glass with the fibre removed.
Premade cocktail mixes hide onion and garlic Bloody Mary mixes and savoury cocktail bases commonly list onion powder, garlic powder or both. Building the drink from plain tomato juice, lemon and pepper is the way to see what is in it.
Sugar-free and diet mixers The sugar free shelf is where polyols turn up. Check for sorbitol, mannitol, xylitol, maltitol and isomalt before topping a shot with a tall one.
Flavoured bottles are their own product Vanilla, caramel, whipped cream and fruit vodkas are sweetened and flavoured, so the reading for plain vodka does not extend to them.

What else works

A 1 shot (30mL) pour with soda water, ice and lime or a slice of orange stays closest to the tested serving, and plain sugar-sweetened tonic or lemonade is a workable long mixer since table sugar is fine here. Gin and rum are also low at 1 shot (30mL) on their own records, and beer is low at 1 can (375mL), so there is room to vary. The lookalikes to leave alone: flavoured and cream vodkas, premixed vodka cans built on fruit purée, apple and pear juice mixers, cocktails sweetened with honey or agave syrup, and bottled savoury mixes carrying onion or garlic powder.

How to keep it low

Use a jigger at home and pour long with soda water and plenty of ice, so a single 1 shot (30mL) fills a glass that lasts. When ordering, ask for a single with soda and fresh citrus rather than choosing from the cocktail menu, where the number of measures is rarely stated. Premixed cans and bottled cocktails list a volume that is normally well past one shot, which makes them a different serving altogether. If you like a savoury drink, build it yourself from plain tomato juice, lemon, pepper and a dash of hot sauce so no onion or garlic powder rides in on a bottled mix.

Common questions

how much vodka is low fodmap

1 shot (30mL) is the tested serving and it reads low. Doubles and cocktails built on more than one measure go beyond what has been tested here.

is flavoured vodka low fodmap

Flavoured vodkas are sweetened, flavoured products, so the 1 shot (30mL) reading for plain vodka does not cover them. The ingredients list on the bottle is the place to look.

is a bloody mary low fodmap

The vodka is low at 1 shot (30mL), but bottled Bloody Mary mixes very often contain onion and garlic powder. Building it from plain tomato juice, lemon and pepper avoids that.

what is the best mixer for vodka on a low fodmap diet

Soda water with lime or orange is the simplest, and plain sugar-sweetened lemonade or tonic works as a long option. Avoid apple, pear and mango juices and check sugar-free mixers for polyol sweeteners.

Learn more

Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.

References

Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
Measurement of short-chain carbohydrates in common Australian vegetables and fruits by HPLC. Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
Quantification of fructans, galacto-oligosaccharides and other short-chain carbohydrates in processed grains and cereals. Biesiekierski et al. (2011), J. Human Nutrition and Dietetics 24(2):154-176.
Dietary sorbitol and mannitol: food content and distinct absorption patterns. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
FODMAPs: food composition, defining cutoff values and international application. Varney et al. (2017), J. Gastroenterology and Hepatology 32(Suppl 1):53-61. Supplies the low, moderate and high cutoffs used on this page.