whey protein
Dairy & Alternatives
Is whey protein high in gos?
Is whey protein high or low in gos? 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 whey protein across criteria
Sensitivity notes
Why gos food checker matters
Galacto-oligosaccharides (GOS) are carbohydrates found mainly in legumes and some vegetables. They're a FODMAP that can ferment in the gut, causing bloating and discomfort in sensitive people.
- Canned and rinsed legumes are lower in GOS than dried
- Start with smaller portions and build up tolerance
- Some people find beano-type enzymes helpful
- Firm tofu is lower in GOS than silken tofu
- Sprouted legumes may be better tolerated
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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GOS Guide
Everything you need to know about gos sensitivity and smart food choices.
Galacto-oligosaccharides (GOS) are carbohydrates found mainly in legumes and some vegetables. They're a FODMAP that can ferment in the gut, causing bloating and discomfort in sensitive people.
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 GOS sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in gos and may trigger symptoms:
View full list
If you're sensitive to GOS, consider these strategies:
- 1Canned and rinsed legumes are lower in GOS than dried
- 2Start with smaller portions and build up tolerance
- 3Some people find beano-type enzymes helpful
- 4Firm tofu is lower in GOS than silken tofu
- 5Sprouted legumes may be better tolerated
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
Want personalized tracking?
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Get the AppFAQ
Is whey protein high in GOS?
GOS: low signal for most people.
Can I still eat whey protein if I'm sensitive to GOS?
Usually fine in normal portions.
What else should I check?
Check Dairy Proteins, Vegan, and AIP next for a fuller picture.