tonic water
Beverages
Is tonic water high in soy?
Is tonic water high or low in soy? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.
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Compare tonic water across criteria
Sensitivity notes
Why soy food checker matters
Soy affects how your body responds to certain foods. Understanding your personal tolerance helps you make informed choices.
- Keep a detailed food and symptom diary to track your personal reactions
- Eliminate the suspected trigger completely for 2-4 weeks
- Reintroduce gradually to find your personal tolerance threshold
- Work with a healthcare provider or registered dietitian for guidance
- Remember that food sensitivities can change over time
Sensitivities
What tonic water contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where tonic water fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about tonic water
Tonic water is the odd one out in the drinks list, because its distinctive trigger is not alcohol at all. Tonic contains quinine, the bitter alkaloid extracted from cinchona bark that started life as an antimalarial and is still a prescription drug, and it is the reason a glass of tonic glows blue under UV light. Regulators cap how much can go into a beverage: the US limit is 83 parts per million, the EU limit is 100 milligrams per litre, and labels must declare that quinine is present. At those levels a mixer sits far below any therapeutic dose and most people never register it. A minority genuinely react, because quinine hypersensitivity is immune-mediated rather than dose-related, which means a sensitised person can respond to the amount in one glass. On the food-chemistry side tonic is otherwise clean, grading A for histamine, salicylates, gluten, dairy and sulfites, but regular tonic is still a sweetened soft drink and grades C for FODMAPs and C for excess fructose.
Watch for
- Quinine is a pharmacologically active compound, not just a bitter flavouring, which is why its level in beverages is capped by law (83 ppm in the US, 100 mg per litre in the EU) and why its presence has to be declared on the label.The classic overdose picture, cinchonism, means ringing ears, headache, nausea and blurred vision, and a normal mixer sits nowhere near it
- Quinine hypersensitivity does not follow dose.The medical literature contains cases of quinine-induced thrombocytopenia, showing up as unexplained bruising, pinpoint red spots or nosebleeds, traced back to tonic water and bitter lemon in people who were already sensitised. It is rare, but it is the reason the FDA has repeatedly warned against off-label prescription quinine
- Quinine interacts with other medicines, including anticoagulants, digoxin and drugs that affect heart rhythm.The amount in a mixer is usually far too small to matter, but it is worth mentioning to a prescriber if tonic is a daily habit
- Regular tonic is a soft drink first.It grades C for FODMAPs and C for excess fructose, and in the US it is commonly sweetened with high fructose corn syrup. Slimline and diet tonics cut the sugar but keep the quinine, so they solve the FODMAP question and not the quinine one
- Clean on the usual sensitivity axes: A for histamine, histamine liberation, salicylates, gluten, dairy protein, sulfites and glutamates.If a gin and tonic reliably bothers you, this page and the gin page are the two halves to test separately
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Soy Guide
Everything you need to know about soy sensitivity and smart food choices.
Soy affects how your body responds to certain foods. Understanding your personal tolerance helps you make informed choices.
Sensitivity varies widely. What triggers one person may be fine for another. Track your reactions to find your personal threshold.
These foods are generally well-tolerated for Soy sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in soy and may trigger symptoms:
View full list
If you're sensitive to Soy, consider these strategies:
- 1Keep a detailed food and symptom diary to track your personal reactions
- 2Eliminate the suspected trigger completely for 2-4 weeks
- 3Reintroduce gradually to find your personal tolerance threshold
- 4Work with a healthcare provider or registered dietitian for guidance
- 5Remember that food sensitivities can change over time
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
Want personalized tracking?
Download Triggerbites to log meals, track symptoms, and discover your unique triggers.
Get the AppFAQ
Is tonic water high in Soy?
Soy: low signal for most people.
Can I still eat tonic water if I'm sensitive to Soy?
Usually fine in normal portions.
What else should I check?
Check Acidic Foods, Inflammation, and AIP next for a fuller picture.