Is Any major brand Whiskey (bourbon, scotch, rye) low FODMAP?

Yes — straight whiskey is low-FODMAP, whether you reach for bourbon, scotch, or rye. That includes rye: rye grain is one of the more fructan-heavy cereals in bread form, but distillation leaves fructans and sugars behind in the still, so none of them reach the bottle. The American 'straight' designation is unusually strict — straight bourbon may contain nothing but the distilled grain spirit and water — while scotch permits exactly one additive, plain caramel coloring (E150a), used in drops per bottle for color consistency rather than in amounts that create any meaningful fermentable load. Barrel aging adds vanillin, tannin, and toasted-oak character, which are aroma compounds, not carbohydrates. The exceptions to check are flavored bottlings: honey, apple, peach, and cinnamon 'whiskeys' are usually sweetened liqueur-style products, and honey in particular is an excess-fructose sweetener — treat them as separate drinks. Mixers matter too, since cola and ginger ale at a US bar are typically sweetened with high-fructose corn syrup. Finally, alcohol itself is a gut irritant independent of FODMAPs and can speed gut motility, so even a clean pour is not automatically a comfortable one. Neat, on the rocks, or lengthened with soda water, whiskey is among the lowest-FODMAP orders at the bar.

📏 Standard pour is 1.5 oz (44 ml). Neat, on the rocks, or with soda water is the low-FODMAP build. Honey, apple, peach, and cinnamon flavored bottlings are sweetened products — read them as separate labels — and cola or ginger ale highballs add high-fructose corn syrup.