whey protein
Dairy & Alternatives
Is whey protein high in sulfites?
Is whey protein high or low in sulfites? 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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Sensitivity notes
Why sulfites food checker matters
Sulfites are preservatives found in wine, dried fruits, and processed foods. They can trigger asthma symptoms, headaches, and allergic reactions in sensitive individuals.
- Dried fruits are often high in sulfites unless labeled 'unsulfured'
- Wine, especially white, commonly contains sulfites
- Fresh foods are naturally sulfite-free
- Check medication labels - some contain sulfites
- Look for 'contains sulfites' on labels (required above 10ppm)
Sensitivities
What whey protein contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where whey protein fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about whey protein
Whey protein grades at the very top of the dairy protein scale (E), which surprises people who switched to it precisely to avoid dairy. Whey is one of the two proteins in milk, alongside casein, so a scoop is a concentrated dose of exactly the thing a cow milk protein allergy reacts to. Lactose is a separate and much smaller issue: it grades moderate (C), high enough to explain the bloating and wind that people blame on the protein itself. Everything else is quiet. Whey is clean on gluten, sulfites, nitrites, lectins, nightshades and every FODMAP other than lactose, and only borderline on histamine, tyramine and glutamates.
Watch for
- Graded highest on dairy protein (E).If you or your child reacts to cow milk protein, whey is not a dairy alternative, it is dairy in its most concentrated form, and it must be declared as milk on the label.
- Moderate lactose (C), and the amount depends entirely on the grade.Concentrate keeps a meaningful share of milk sugar, isolate is filtered down to very little, and hydrolysate less again.
- The moderate FODMAP grade is essentially the lactose.Strip that out with an isolate and the FODMAP problem largely goes with it, but the protein does not change at all.
- Borderline on histamine, histamine liberation, tyramine and glutamates.Low-level rather than a strong trigger, but enough to notice if you drink a shake alongside other borderline foods every day.
- Vegetarian but not vegan, and not a fit for a paleo pattern.
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Sulfites Guide
Everything you need to know about sulfites sensitivity and smart food choices.
Sulfites are preservatives found in wine, dried fruits, and processed foods. They can trigger asthma symptoms, headaches, and allergic reactions in sensitive individuals.
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 Sulfites sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in sulfites and may trigger symptoms:
View full list
If you're sensitive to Sulfites, consider these strategies:
- 1Dried fruits are often high in sulfites unless labeled 'unsulfured'
- 2Wine, especially white, commonly contains sulfites
- 3Fresh foods are naturally sulfite-free
- 4Check medication labels - some contain sulfites
- 5Look for 'contains sulfites' on labels (required above 10ppm)
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 whey protein high in Sulfites?
Sulfites: low signal for most people.
Can I still eat whey protein if I'm sensitive to Sulfites?
Usually fine in normal portions.
What else should I check?
Check Dairy Proteins, Vegan, and AIP next for a fuller picture.