lettuce
Vegetables
Trigger checker for lettuce
See lettuce rated across every trigger — FODMAP, histamine, salicylate, oxalate, tyramine and more — plus diet compatibility, all in one quick ingredient profile.
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Compare lettuce across criteria
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
Explore related in Vegetables
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FAQ
What does the FODMAP rating mean for lettuce?
Medium FODMAP: portion size matters more than the ingredient itself.
Is lettuce generally well tolerated?
FODMAPs (Low) and Nickel (Low) Start with those if you react.
What should I check next?
Compare within the Vegetables group.