lettuce
Vegetables
Is lettuce high in gluten?
Find out whether lettuce is high or low in gluten, see its exact rating, and check its FODMAP, salicylate, oxalate and diet compatibility all in one place.
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Sensitivity notes
Why gluten food checker matters
Gluten is a protein found in wheat, barley, rye, and their derivatives. People with celiac disease, gluten sensitivity, or wheat allergy need to avoid gluten to prevent digestive and systemic symptoms.
- Learn to read labels carefully - gluten hides in many products
- Be aware of cross-contamination in shared kitchens and restaurants
- Look for certified gluten-free products for safety
Triggers
Diets
Serving size, prep, and portion notes for lettuce
Lettuce is a safe base green, clean across nearly every trigger: low histamine, low salicylate, gluten free, and importantly low in oxalate, unlike spinach, which is very high in oxalate. That makes lettuce a reliable salad base when spinach and other leafy greens are off the table. Two small notes keep it honest: it carries a modest FODMAP load in very large volumes, and its nickel content is borderline rather than negligible.
Watch for
Low oxalate, in clear contrast to spinach, which is high oxalate: swapping spinach for lettuce is a common move on a low-oxalate diet / Moderate FODMAP only in large volumes, so a normal side salad is fine while a huge bowl can add up for a sensitive gut / Nickel sits at a borderline level, worth noting if you have a strict systemic nickel allergy but not a concern for most people
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Gluten Guide
Everything you need to know about gluten sensitivity and smart food choices.
Gluten is a protein found in wheat, barley, rye, and their derivatives. People with celiac disease, gluten sensitivity, or wheat allergy need to avoid gluten to prevent digestive and systemic symptoms.
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 Gluten sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in gluten and may trigger symptoms:
View full list
If you're sensitive to Gluten, consider these strategies:
- 1Learn to read labels carefully - gluten hides in many products
- 2Be aware of cross-contamination in shared kitchens and restaurants
- 3Look for certified gluten-free products for safety
- 4Oats are naturally gluten-free but often cross-contaminated
- 5Give your gut time to heal - improvement may take months
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 lettuce high in Gluten?
Gluten: low signal for most people.
Can I still eat lettuce if I'm sensitive to Gluten?
Usually fine in normal portions.
What else should I check?
Check FODMAPs, Nickel, and FODMAPs next for a fuller picture.