Mixed Lettuce

Low FODMAP

Typical portion

Any typical portion Low

Mixed lettuce is Low FODMAP, a crisp leafy base that's mostly water and fiber with nothing fermentable to trouble your gut.

Lettuce leaves carry negligible fermentable carbohydrate, so a typical portion of mixed lettuce sits comfortably low with no FODMAP subgroups to flag.

Build your salad on these leaves freely, just keep an eye on what you toss in, since dressings and add-ins like garlic or onion are where the FODMAPs usually sneak in.

Why mixed lettuce is rated low

Mixed lettuce is low FODMAP. Lettuce leaves carry very little of the carbohydrate that causes trouble on this diet, so the rating holds at "Any typical portion". That rating is estimated from what the leaves are made of rather than from a measured serving, and the leaves themselves are rarely the problem in a salad. What lands on top of them usually is: the dressing, the croutons, the crispy onions, the cheese. Low here describes the lettuce, not the finished salad.

What changes your risk

Portion size The rating covers "Any typical portion". A salad built as a whole meal is still mostly lettuce, but low is a per-serving rating, so treat it as a sensible plate rather than a bottomless one.
Dressings Bottled vinaigrettes, ranch, Caesar and creamy dressings often contain garlic, onion powder, honey or milk. An oil-based dressing made with garlic-infused oil keeps the flavour without the garlic itself.
Salad kits and toppings Pre-made kits often add wheat croutons, crispy fried onions, dried fruit or soft cheese. Those extras, not the leaves, decide where the salad lands.
Stacking the whole meal Lettuce adds very little on its own, but the total load of a meal is what matters. A salad served alongside wheat bread, a garlicky soup or an apple adds up even though the lettuce stays low.

What else works

Other leafy bases that also sit low include baby spinach and bok choy, and cucumber, bell pepper, carrot and zucchini make good crunchy additions. The things people assume are as harmless as lettuce are the ones to check: sliced mushroom, celery, red or white onion, the white part of spring onion, wheat croutons, and creamy dressings built on milk, cream cheese or ordinary yoghurt are not low FODMAP swaps or toppings. For an onion note, use chives or the green tops of spring onions instead. For crunch, try pumpkin seeds or walnuts, and for cheese, a hard cheese such as parmesan or cheddar.

How to keep it low

Read the ingredient list on bagged mixes and kits, since some come with a sealed sachet of dressing or toppings that carries the garlic, onion or wheat. Buying the leaves plain and adding your own toppings keeps control of the salad. Store washed leaves dry in a container lined with paper towel so they stay crisp, and make a jar of dressing from garlic-infused oil, a little maple syrup and chopped chives to keep on hand. When ordering a salad out, ask for dressing on the side and skip the croutons and onion.

Common questions

is mixed lettuce low fodmap

Yes. Mixed lettuce is low FODMAP at "Any typical portion", a rating estimated from what the leaves are made of. The dressing and toppings are where a salad usually picks up FODMAPs.

can i eat salad on the low fodmap elimination phase

The lettuce itself fits the elimination phase. Check the dressing, croutons, onion, mushroom and soft cheese, since those are the parts of a salad that are not low.

what dressing is low fodmap for lettuce

A dressing built on garlic-infused oil, with chives or the green tops of spring onions for flavour, carries the taste of garlic and onion without the FODMAPs. Many bottled dressings contain garlic, onion powder or honey, so read the label.

Learn more

Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.

Mixed Lettuce is an estimated rating: it is inferred from the food's ingredients and composition and cross-checked, not measured directly in the papers below. The low, moderate and high cutoffs are still those of Varney et al. (2017).

References

Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
Measurement of short-chain carbohydrates in common Australian vegetables and fruits by HPLC. Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
Quantification of fructans, galacto-oligosaccharides and other short-chain carbohydrates in processed grains and cereals. Biesiekierski et al. (2011), J. Human Nutrition and Dietetics 24(2):154-176.
Dietary sorbitol and mannitol: food content and distinct absorption patterns. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
FODMAPs: food composition, defining cutoff values and international application. Varney et al. (2017), J. Gastroenterology and Hepatology 32(Suppl 1):53-61. Supplies the low, moderate and high cutoffs used on this page.