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Eating with food allergies and FODMAP sensitivities can feel restrictive, but I promise — it doesn’t have to be bland or boring! I constantly see people feeling afraid to stray from the basics, but not to fear — there are still so many ways to boost flavour without relying on high FODMAP ingredients like garlic, onion, or the top 8 allergens!
With the right ingredients, you can still enjoy rich, bold flavours without the worry. Whether you’re looking to give a simple weeknight meal a bit more of a kick, or experimenting with new recipes, these 20 allergen-friendly and low-FODMAP flavour boosters are the perfect tools to keep in your back pocket for when you want to take your cooking to the next level, and they are my tried and tested go-to’s, so I hope you enjoy.
Note: Always check the ingredients for your specific allergens – not all products may be suitable for you.
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1. Spring Onion Green Tops & Garlic Chives
I know, I know — garlic and onion are in everything. But if you can’t have them, and you miss that oniony-garlicky punch, spring onion greens and garlic chives are perfect substitutes, in moderation. Both options add a fresh, mild oniony flavour without the digestive issues that come with regular onions and garlic. I recommend fresh for salads or as a garnish, but dried chives are also a great option. Spring onions are particularly delicious paired with asian dishes like teriyaki chicken.
Also remember to stick to the green tops for spring onions if you are strict low FODMAP, since the white parts contain more fructose and fructans!
2. Infused Oils (Garlic & Onion-Free)
While we are on garlic and onion – infused oils are next on my list of lifesavers. You get all the flavour without the FODMAPs! I am a really big fan of Cobram Estate’s Garlic & Onion Infused Extra Virgin Oil, and whenever I grab a bottle I go through it so quickly, because I drizzle it over just everything – pasta, roasted veggies, salads, over pizza. It even goes great as a dipping oil!
Or you can try making you own garlic-infused oil at home!
3. Cooking Mirin & Sake
These Japanese cooking staples add a subtle umami depth to dishes (which is the flavour I am always chasing!) Both pair really well in marinades as well as glazes and stir-fries.
Cooking Sake has a gentle, complex salty flavour that is not overpowering, and is generally used to tenderise meats and add subtle umami. On the other hand, Mirin has a slightly more sweet, gentle flavour and is used for brightening sauces and seasoning dishes.
They are both made from fermented rice, and can be used seperately or apart, and best of all, they are naturally low FODMAP, gluten free, and dairy free. Traditionally they would be paired with soy sauce – but if you have allergies to wheat or gluten try Tamari, or for soy allergy, try coconut aminos instead.
4. Fennel
Fennel has a mild, anise-like taste that works beautifully in salads, roasted dishes, or even as a seasoning for proteins. It’s an underrated gem for adding complexity to meals.
5. Capers
Capers bring a salty, tangy, vinegary burst of flavour that pairs well with Mediterranean-style dishes. Combine them with lemon or lime juice for an extra zing, or use them in seafood, pizza or pasta dishes.
6. Citrus Zest & Juice
A little fresh lemon, lime, or orange zest can do wonders for a dish. It brightens up everything from roasted veggies to marinades and even baked goods.
Pro tip: zest first, then juice! And don’t forget to freeze any extra in a ziplock bag to save for later, it lasts ages when frozen!
7. Tabasco & Chilli Sauces
A little heat can go a long way! Tabasco sauce can add depth and spice without overpowering a dish, and it’s naturally low FODMAP! But just be mindful of ingredients with other hot sauces – opt for versions without garlic or onion, or if you can’t avoid it be sure to keep potions small (like Sriracha which does contain garlic and onion).
8. Vinegar-Based Dressings
A good acid can bring a dish to life. Apple cider vinegar, rice vinegar, or a splash of balsamic (in moderation) can add tang and balance – it really doesn’t need much!
Want a quick and easy salad dressing – try using a small jar with a lid to combine with one of these vinegars with olive oil, and a pinch of salt and a touch of sweetener like sugar or pure maple syrup (a great low FODMAP option in moderation), then shake it up until well combined, and enjoy! Or experiment further by adding fresh herbs – don’t be afraid to give it a go, it works with almost any combination!
9. Fresh Herbs: Rosemary, Mint, Basil, Coriander
Fresh herbs are a simple way to enhance flavour. Rosemary brings warmth, mint adds a refreshing touch, basil is bright and peppery, and coriander (cilantro) gives dishes a citrusy lift. Fresh herbs can get expensive so I love growing my own – and the flavour and aroma is seriously unmatched!
The best thing is, you don’t even need to have an outdoor space to start growing your own too!
10. Fresh Ginger
I use a mico-grater to finely grate my fresh ginger, which brings a uniquely punchy, slightly spicy warmth to dishes. It works great in asian inspired stir-fries, soups, and even tea. It’s one of my go-to ingredients when I want to add some zip to a dish.
On a side note, for my POTs peeps – I rarely leave the house without my bag of candied, crystallised ginger these days – because ginger happens very good as a natural anti-nausea option and I never know when that feeling is going to hit me.
11. Pumpkin Puree & Pumpkin Seeds
Pumpkin isn’t just for soups! Pumpkin puree can add natural sweetness and richness to sauces, stews, and even baked goods. Combine it with tomato based sauces to reduce their FODMAP load and sweeten them up. Plus, it packs in extra nutrients while keeping things allergy-friendly!
Pumpkin seeds are also beautiful when toasted, adding a nice light crunch that goes well on salads or as a garnish.
12. Pineapple
Pineapple’s natural sweetness and acidity make it a fantastic, well balanced addition to marinades, sauces, and even savory dishes. It also contains an enzyme called bromelain which helps tenderize meats, and it pairs really well with fatty cuts of pork, as the acidity really helps cut through.
13. A Really Good, Low FODMAP Italian Dressing
I love finding hidden gems, like Eskal Deli’s Low FODMAP Italian Dressing, which is gluten free, dairy free, egg free, oil free and vegan. Pop it over your salad or use it as a marinade, it’s not overly vinegary tasting and is so tummy safe.
14. Coconut Aminos (No Garlic or Onion)
Coconut Aminos are a go-to for a lot of people for adding umami without soy or gluten. It’s naturally a little sweeter than soy sauce but works perfectly in stir-fries, marinades, and dipping sauces. Just be mindful that some brands can be a bit salty or contain garlic or onion.
Coconut Aminos are also suitable for a low FODMAP diet in moderation (think under 2 tablespoons per meal), but does contains fructans so be careful not to have too much if you’re sensetive to them.
15. Dehydrated Mushrooms
Mushrooms are known to contain a complex umami flavour, which is why I love using them whenever I get the chance. Dried mushrooms like Shiitake are a big winner for me, since they keep for a long time, and they add a unique boost to any dish.
Before using them, you should rinse them, then soak them in cold water for 5-10 minutes to rehydrate them. After that, cut them if required, before tossing them into your soup, stir fry, stew, gravy, curry or marinade.
16. Vegan Fish Sauce
Niulife make a Vegan Fysh (Fish) Sauce that is a really awesome alternative to the real thing – it’s made from coconut so it’s fish free, gluten free, nut free, low FODMAP, perfect for adding flavour to crispy noodle salads, stir frys, marinades or any other dish that usually calls for fish sauce.
17. Stock Powder (Like Massel)
A good stock powder can enhance the depth of flavour in soups, stews, and sauces. My household relied on Massel Stock Powder, and it has been my go-to as an adult as well – it’s allergen-friendly, gluten free, dairy free and free from onion and garlic. They are also vegan!
18. Toasted Herbs & Spices (Crushed with a Mortar & Pestle)
Nothing beats the flavour and aroma of freshly toasted spices that have just been crushed! That’s because this process released the natural oils and brings them to the surface.
I love making custom blends inspired by different parts of the world, with dried seeds like cumin, coriander, fennel, cinnamon bark, anise, and smoked paprika, then using them as a spice rub or even as a home brewed tea!
19. Maple Syrup
A touch of maple syrup can add natural sweetness and depth to both sweet and savory dishes. It works beautifully in marinades, dressings, and roasted vegetables, giving them a subtle caramelized finish.
20. A Good, Flaky, Finishing Sea Salt
Don’t underestimate the power of salt, especially a really good quality flaky sea salt like Maldon. It is an absolute staple in my kitchen and it always brings out the flavour in any dish. A little goes a long way, so use sparingly.
Final Thoughts
Just because you’re avoiding allergens and high-FODMAP foods doesn’t mean your meals have to be boring! These ingredients have been absolute lifesavers in my kitchen, and I hope they help you too. Experiment, mix and match, and most importantly—enjoy your food!
Looking for more allergen-friendly recipes? Check out my collection of low-FODMAP and allergy-safe dishes to start cooking with confidence!
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