Is poppy seed dressing orthodox fasting-compatible?

Watch for

• Our worst grade here is for bacterial fermentation, and it comes from the sugar.Bottled poppy seed dressing commonly lists sugar or high fructose corn syrup in the first two ingredients, which is also why it carries a borderline excess fructose flag that a plain oil and vinegar dressing does not
• Onion is the hidden fructan.Classic poppy seed dressing recipes are built on grated onion, onion juice or onion powder for the savoury edge under the sweetness, and that is where the fructan load sits. The seeds contribute almost nothing to FODMAP total
• Borderline for sulfites.The vinegar base plus the preservatives used to keep an emulsified bottled dressing shelf stable are a realistic sulfite exposure, so check the label if sulfites give you wheeze, flushing or headache
• Borderline for salicylate and oxalate, largely from the vinegar, dry mustard and seed rather than any one loud ingredient.It is a stacking risk on a strict elimination rather than a single high-dose source
• The poppy seed drug test question does not really apply here.A serving of dressing carries a fraction of a teaspoon of seed, far less than the seeded bagel or muffin quantities behind reported opiate screen results. See our poppy seeds page for that story in full