Low FODMAP Overnight Oats Recipe (5 Minutes, No-Cook, IBS-Safe)
Low FODMAP overnight oats are made by soaking rolled oats, chia seeds and a low FODMAP milk overnight until soft and creamy. They are one of the easiest low FODMAP breakfast ideas for IBS because they are simple to prep, easy to portion, and easy to customise with gut-friendly toppings.
This low FODMAP overnight oats recipe takes just five minutes to make the night before and gives you a ready-to-eat breakfast in the morning. If you are in the elimination phase, the key is using the right ingredients and sticking to a sensible serving size.
Why this recipe works
- It uses plain rolled oats, which are the classic base for overnight oats.
- It includes chia seeds to create a thicker, creamier texture overnight.
- It is easy to batch-prep for several breakfasts at once.
- It can be eaten cold or warmed up the next morning.
- It keeps the base simple, so you can personalise it with low FODMAP toppings.
Are oats low FODMAP?
Yes, oats can be low FODMAP at the right portion size. For overnight oats, the best option is plain old-fashioned rolled oats, which soften well in the fridge and give the right texture by morning.
For best results, avoid using:
- Instant or flavoured oat sachets
- Steel-cut oats
- Thick-cut oats
- Sweetened oat mixes with added high FODMAP ingredients
Rolled oats are the safest and most reliable choice for this recipe.
Why add chia seeds?
Chia seeds help absorb the liquid and thicken the oats as they sit overnight, which gives the mixture a creamier texture. They also add extra fibre and make the breakfast feel more filling and satisfying.
That combination of rolled oats and chia seeds is one reason overnight oats are such a practical breakfast for people trying to keep mornings simple.
Low FODMAP serving size and elimination phase
Yes, you can eat overnight oats during the low FODMAP elimination phase, but portion size matters. This is what makes low FODMAP overnight oats useful for people with IBS: the ingredients may be suitable, but the serving still needs to be sensible.
This recipe is designed to make multiple servings, so you can prep one batch and portion it out across the week. That makes breakfast more consistent and removes guesswork on busy mornings.
Low FODMAP overnight oats recipe
- Makes: 6 servings
- Prep time: 5 minutes
- Chill time: 6 to 8 hours minimum
Ingredients
- 1 1/3 cups unsweetened almond milk
- 1 cup old-fashioned rolled oats
- 3 tablespoons chia seeds
- 1 to 2 tablespoons maple syrup (optional)
Method
- Add the almond milk, rolled oats, chia seeds and maple syrup to a large airtight container or jar.
- Stir well so the chia seeds are evenly distributed through the mixture.
- Cover and refrigerate overnight, or for at least 6 hours.
- In the morning, stir again before serving.
- Serve cold, or warm for 30 to 60 seconds in the microwave if you prefer.
- Add your chosen low FODMAP toppings just before eating.
Storage tip: The plain base keeps well in the fridge for up to 4 days.
What is the best jar for overnight oats?
You can make overnight oats in any airtight container, but a dedicated overnight oats jar makes the routine easier. It helps with portioning, keeps the oats covered in the fridge, and makes breakfast much easier to take with you if you are eating on the go.
If you make overnight oats regularly, using the same jar each time can also help keep portions more consistent and make meal prep feel simpler.
Low FODMAP topping ideas
One of the best things about overnight oats is that the base stays neutral, so you can change the flavour with toppings. Just remember that with low FODMAP eating, it is easy to overdo it by combining too many ingredients at once.
- Raspberries and walnuts
- Blueberries and peanut butter
- Strawberries and cacao nibs
- Papaya and coconut
- Pomegranate seeds and pumpkin seeds
- Banana and almond slivers
Start simple and avoid adding too many fruits, sweeteners and extras all in the same bowl until you know what works for your digestion.
Which sweeteners are low FODMAP?
If you want to sweeten your oats, maple syrup is one of the easiest options. You can also leave the base unsweetened and rely on fruit toppings for flavour.
- Usually suitable: maple syrup, white sugar, brown sugar, stevia
- Best avoided during elimination: honey, agave syrup, high-fructose sweeteners
Want an easier low FODMAP overnight oats base?
If you like the idea of low FODMAP overnight oats but want to make breakfast feel easier, using a ready-made oat blend can save time and reduce decision fatigue. Instead of building flavour from scratch every time, you can start with a blend that already works well for sensitive digestion.
Our Simply Nuts Porridge makes a great low FODMAP overnight oats base if you want something nutty and more satisfying, while Raspberry & Cacao Low FODMAP Porridge is a good option if you want more flavour without relying on lots of toppings. Both can be used in place of plain oats to make your overnight oats routine quicker and more enjoyable.
Can overnight oats work well for IBS?
They can be a practical option because they are easy to prep, easy to portion, and simple to keep low FODMAP when the ingredients are chosen carefully. Many people find them easier to manage than more complicated breakfasts that vary from day to day.
If you still feel bloated even when eating low FODMAP breakfasts, it may be worth looking at your wider fibre intake and your overall gut health support across the rest of the day too.
Still bloating even on a low FODMAP diet?
Switching to a low FODMAP breakfast is a meaningful step — but if you are still experiencing bloating or discomfort even with the right ingredients, the issue may not be what you are eating but what your gut microbiome is missing.
Low FODMAP diets are effective at managing symptoms, but they do not directly address the underlying microbiome balance. Adding a daily prebiotic fibre supplement alongside a low FODMAP breakfast is one of the most evidence-supported ways to support gut bacteria without triggering symptoms.
Fibre Foundation is The Gut Tailor's gentle, unflavoured daily fibre blend — designed to be stirred into overnight oats, smoothies, or water, and tolerated even by sensitive guts.
Frequently asked questions
Can you eat overnight oats on a low FODMAP diet?
Yes, as long as you use suitable ingredients and keep portions sensible. Rolled oats, chia seeds and unsweetened almond milk make a simple low FODMAP base.
Are overnight oats good for IBS?
They can be, because they are easy to prep, easy to portion, and simple to customise. Many people find them easier to manage than more complicated breakfasts. See our Benefits of Overnight Oats blog post to explore their health benefits.
Can I make low FODMAP overnight oats without chia seeds?
Yes, but the texture will be thinner and less creamy. Chia seeds help bind the mixture and improve consistency.
Can I heat overnight oats the next day?
Yes. Although they are often eaten cold, you can microwave a serving briefly if you prefer a warm breakfast.
How long do overnight oats last in the fridge?
The plain base usually keeps for up to 4 days in an airtight container. Add toppings just before serving for the best texture.
What milk is best for low FODMAP overnight oats?
Unsweetened almond milk is one of the easiest options. Always check labels, as some flavoured or sweetened plant milks contain added ingredients that may not suit sensitive digestion.
