If someone you love has IBS and you're the one who cooks, the safest answer is simpler than it feels: build the plate from a plain protein, a simple starch, and a couple of gentle vegetables, and leave out onion, garlic, and honey. Chicken with rice and carrots. Salmon with potato and green beans. Eggs with sourdough toast. These aren't sad "invalid meals" — they're normal dinners that happen to skip the three ingredients most likely to hurt. Master that pattern and you can cook for them for the rest of your life without a second thought.
But you probably didn't come here just for a recipe. You came because you're a little scared. Scared that the meal you make with love is the thing that leaves them curled up in pain two hours later. Tired, maybe, of cooking two dinners — theirs and everyone else's. This guide is for that feeling as much as for the food.
Were you sent this page by the person you cook for? If so, know that forwarding it wasn't easy for them. People with IBS spend a lot of energy trying not to be a burden at the table. You reading this is exactly the reassurance they were hoping for.
First, the one thing that takes the pressure off
You cannot fix their gut, and it was never your job to. IBS is a real, functional condition — the gut is oversensitive and over-reactive, not damaged — and managing it is a long game the person themselves leads, ideally with a doctor or dietitian. Your job is smaller and kinder: make dinner safe. That's it. Get that reframe and the fear shrinks to a manageable size.
The tool most people with IBS use is the low-FODMAP diet. FODMAPs are a family of fermentable carbohydrates that, in a sensitive gut, pull in water and ferment, producing gas, bloating, and pain. You don't need to learn the biochemistry. You need to know which everyday foods are usually fine and which few are usually trouble. That's a shopping skill, not a medical one.
Safe default dinners you can rotate forever
Naturally low-FODMAP foods are the reliable bricks. Build any dinner from these three slots:
- A protein (these carry no FODMAPs at all): chicken breast, salmon, eggs, beef, pork, or firm tofu.
- A starch: white rice, potato, quinoa, polenta, rice noodles, or gluten-free pasta.
- One or two safe vegetables: carrot, zucchini, spinach, green beans, bell pepper, cucumber, or bok choy.
Put them together and you get dinners like these, all safe as written:
- Roast chicken, roast potatoes, carrots and green beans.
- Baked salmon with rice and steamed bok choy.
- Beef and rice-noodle stir-fry with carrot and pepper, cooked in garlic-infused oil.
- Grilled chicken with mashed potato and sautéed zucchini.
- Firm-tofu curry (onion-and-garlic-free paste) over white rice.
Season with olive oil, salt, pepper, lemon, and fresh herbs. For that savory depth onion and garlic usually give a dish, reach for garlic-infused oil — the flavor infuses into the oil but the FODMAPs stay behind, so it's genuinely safe — plus the green tops of spring onions and chives. If you want a full week mapped out, our 7-day low-FODMAP meal plan is free and printable, and the low-FODMAP food list shows what's safe by category.
One caveat worth saying out loud: portion size matters. Even low-FODMAP foods can add up if you pile several borderline ones onto one plate — dietitians call it the stack effect. You don't need to police this, but it's why "a normal serving of a safe food" is the mental rule, not "as much as they want of anything on the safe list."
The sneaky-ingredient checklist
Here's what catches home cooks out: the biggest triggers rarely appear as themselves. They arrive dissolved into other things. Before you cook, scan for these.
Onion and garlic hide in almost every convenience product: stock cubes and bouillon, gravy, jarred pasta sauce, marinades, salad dressings, hummus, pesto, spice blends, "natural flavoring," and most ready meals. Cooking them longer does not make them safe — the FODMAPs are water-soluble and don't break down with heat. Cook from scratch where you can, and check labels on anything jarred.
Honey turns up in glazes, dressings, granola, marinades, "healthy" yogurts and snack bars, and some breads. Maple syrup and regular table sugar are safe swaps in most amounts.
A few other common ones to check on labels: inulin or chicory root fiber (added to many "high-fiber" and protein products), high-fructose corn syrup, apple and pear juice concentrate, and the sugar-free sweeteners sorbitol, mannitol, and xylitol. If you cook with whole ingredients, most of these never come up.
If you want to confirm any single ingredient rather than guess, you can look up its safe serving in the food database — every entry shows the threshold and the research behind it.
How to talk about it without making them feel like a burden
The cooking is honestly the easy part. The delicate part is the conversation, because the person with IBS has probably spent years feeling like the difficult one at every meal. Your goal is to take that weight off, not add to it.
Ask once, and keep it light. You don't need their medical history. One question covers almost everything: "Are there any foods you're avoiding right now?" It's warm, it's specific, and it hands them control of how much to explain. Notice it's about what they're avoiding — not "what are you allowed to eat," which can feel infantilizing, and not a barrage of questions about symptoms.
Don't make them the center of attention. Quietly cooking something safe is worth more than a big announcement about how you researched their condition. The most loving version of this is invisible: dinner is just good, and it just happens to work for them.
Believe them about their own limits. Tolerances are deeply individual — one person is fine with a little avocado, another isn't; one can handle a small serving of wheat, another can't. If they say something bothers them, that's the final word, even if a list somewhere says it's "safe." You're not the expert on their gut; they are.
Skip the food commentary. No "are you sure you can eat that?", no "just a little won't hurt," no watching their plate. Nothing makes a person feel more like a patient than being monitored at dinner. Cook the food, then let the meal be a meal.
If they're in the middle of the strict elimination phase — the first few weeks of the diet, where the list is tightest — cooking gets a little more constrained for a while. That phase is temporary (usually two to six weeks), after which they reintroduce foods and the safe list widens again. Knowing it's a season, not forever, helps everyone relax.
One dinner, not two
The single biggest thing you can do for morale — theirs and yours — is to stop cooking two separate meals. Almost every safe dinner above is a meal the whole household happily eats; nobody at the table needs to know it was designed around anything. That's the whole idea behind low-FODMAP family dinners everyone will eat: dignity comes from eating the same food as everyone else, not a special plate delivered to the "sick" person. And when you're feeding a crowd rather than your own household, hosting someone on the low-FODMAP diet walks through the dinner-party version. Both start from the same place as this guide: our cooking-for-IBS hub, which has a printable kitchen cheatsheet for the fridge.
Where the app comes in
You can carry the safe list in your head after a couple of weeks — most people do. But the person you're cooking for is the one who benefits most from being able to check any food, anywhere, without asking you or googling at the store. That's what Phase is: it checks any food's safe serving against published research with the citations shown, logs meals in seconds, and helps them learn their own personal triggers so the whole household stops guessing. You've already done the loving part by being here. If you want to hand them something that keeps helping long after tonight's dinner, that's the one.