Dinner
Thai Peanut Chicken Rice Bowl
30 minMedium
Peanut Butter
Sweeteners · Spreads
TLDRLast updated 3 September 2026
Yes, peanut butter is low FODMAP at the tested serve of 2 tablespoons, which rates green. That serve contains 0.1 g of GOS, sitting right at the top of the green range, so it’s a keep-to-the-serve food rather than an eat-freely one. Choose a plain peanut butter without added honey or other high FODMAP sweeteners.
Last updated 3 September 2026Serving sizes for peanut butter
The tested serve is 2 tablespoons, rated green. It sits at the top of the green range for GOS.
2 tablespoonsabout 30 ml
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 2 tablespoons | 2 tbsp | GOS 0.1 g |
Breakdown for 2 tablespoons
0gFructose
0gLactose
0gFructans
0.1gGOS
0gSorbitol
0gMannitol
2 tablespoonsabout 30 ml
Is peanut butter low FODMAP?
The only FODMAP recorded in peanut butter is GOS, at 0.1 g in the 2-tablespoon serve. The moderate rating kicks in above 0.1 g, so this serve lands exactly on the ceiling of green with no room to spare. That’s the whole story of peanut butter on a low FODMAP diet: perfectly fine at the tested amount, but spread thickly or eaten by the spoonful it quickly becomes an untested quantity. Two tablespoons is the only serving in our data, so treat it as both the serve and the sensible cap.
Peanut Butter and IBS: what to know
Because the 2-tablespoon serve sits right at the green ceiling, stacking peanut butter with other GOS sources in the same meal, such as almonds or legumes, adds to the same fermentable load. Peanut butter is also rich, and high-fat meals can be their own IBS trigger for some people independent of FODMAPs. If peanut butter toast sits heavily, try a thinner spread before writing it off, and keep an eye on your whole day rather than the single serve.
Gut-friendly ways to eat peanut butter
Measure 2 tablespoons rather than eyeballing: on toast, stirred through porridge, or as a satay-style sauce base with tamari and lime. Check the label, since some commercial peanut butters are sweetened with honey, which is rated red at its tested serve; 100% peanuts is the easy choice. If you rotate spreads, almond butter and tahini both rate green at their tested serves, while cashew butter starts at amber.
Recipes with peanut butter
Frequently asked questions
Can I eat peanut butter with IBS?
Yes. Two tablespoons of peanut butter is rated green, with 0.1 g of GOS, right at the upper edge of the green range. It’s a well-tolerated staple for many people with IBS as long as the portion stays close to the tested serve and the jar isn’t sweetened with honey.
How much peanut butter is low FODMAP?
The tested serve is 2 tablespoons, and it rates green. Because its 0.1 g of GOS sits exactly at the threshold where portions start rating moderate, larger amounts are uncharted territory in our data. Measure the first few times; a generous knife-load can easily be double a tablespoon.
Which peanut butter should I buy on a low FODMAP diet?
Go for one that is essentially just peanuts and salt. The peanuts themselves are the tested part; added honey or high fructose sweeteners bring in FODMAPs the 2-tablespoon rating doesn’t account for. Smooth versus crunchy makes no difference to the FODMAP content.
What can I use instead of peanut butter?
Almond butter and tahini both rate green at their tested serves in our guide, and whole peanuts are also green-rated if it’s the peanut flavour you’re after. Cashew butter is the one to watch, rating amber at its first tested serve.
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