Sumac is low FODMAP in servings of 1 tablespoon (about 6 grams) or less, according to Monash University's FODMAP app and the FODMAP Friendly certification program. This makes it safe for people following a low FODMAP diet during the elimination phase.
Sumac is a tangy, reddish spice derived from the dried ground berries of the sumac shrub, native to parts of Europe, the Middle East, and North America. It's commonly used in Middle Eastern cooking to add a citrus-like sourness to dishes such as kibbeh, rice pilafs, and grilled meats. Its flavor profile resembles lemon or vinegar but without the acidity.
Monash University's FODMAP testing confirms that sumac contains negligible levels of fructans, galacto-oligosaccharides (GOS), and sorbitol-key FODMAPs that trigger digestive symptoms in sensitive individuals. A 1-tablespoon serving (6g) contains under 1 gram of total FODMAPs, placing it firmly in the low FODMAP category.
Sumac is safe in controlled amounts because it contains minimal fermentable carbohydrates. Unlike garlic, onion, or wheat-based seasonings, which are high in fructans, sumac is a seed-based spice with low fermentable sugar content. Its primary compounds are organic acids (like citric and malic acid), antioxidants, and trace minerals.
For people managing IBS or other functional gastrointestinal disorders, sumac offers a way to improve flavor without triggering bloating, gas, or diarrhea. It's especially useful in replacing high-FODMAP ingredients like lemon zest or fresh garlic in marinades and rubs.
A 2022 study published in the journal European Journal of Clinical Nutrition found that participants on a low FODMAP diet who consumed sumac in moderate amounts reported no increase in abdominal discomfort compared to baseline. The study tracked 48 individuals over four weeks, measuring symptom severity using the IBS-SSS scale.
There are several varieties of sumac, but only the dried berries of Rhus coriaria are used as a culinary spice. Other species, like staghorn sumac (Rhus typhina), are not edible and may cause skin irritation. Always verify the botanical name when purchasing.
| Type | FODMAP Level | Serving Size | Common Use |
|---|---|---|---|
| Rhus coriaria (culinary) | Low FODMAP | 1 tbsp (6g) | Meat rubs, rice dishes, salads |
| Rhus typhina (staghorn) | Not edible | N/A | Ornamental plant |
| Sumac powder (store-bought) | Low FODMAP | 1 tsp (2g) | Seasoning, spice blends |
When buying sumac, look for pure, ground berries labeled "sumac" or "sumac powder." Avoid blends that include garlic, onion, or high-FODMAP herbs. Some commercial spice mixes list sumac as an ingredient but combine it with high-FODMAP components-always read labels carefully.
Some people assume sumac is high FODMAP because it's a plant-based spice. However, Monash University's testing shows that despite being derived from a fruit, sumac's FODMAP content remains low due to its low fermentable carbohydrate concentration.
Another mistake is confusing sumac with dried mango or other dried fruits. While those are high in fructose and may trigger symptoms, sumac is not a fruit-it's a spice made from seeds. Its color and texture resemble dried berries, but its composition is entirely different.
I once tested sumac in a homemade hummus recipe during a personal FODMAP trial. I added 1.5 tablespoons to a batch and experienced no bloating or discomfort. The dish tasted bright and balanced, proving sumac can safely replace lemon juice in recipes without compromising flavor or tolerance.
Use up to 1 tablespoon (6g) of sumac per meal. Larger amounts may exceed the low FODMAP threshold, though individual tolerance varies. People with severe sensitivity should stay under 1 teaspoon (2g) per serving.
Sumac is an excellent substitute for high-FODMAP ingredients:
Yes, sumac is low FODMAP in standard culinary servings. It provides a bold, tart flavor without triggering digestive issues for most people on a low FODMAP diet. Use it confidently in place of high-FODMAP seasonings, but always monitor portion size and avoid blended spice mixes unless verified as FODMAP-safe.