Porcini
Serving sizes
Porcini changes rating with portion size. These are the amounts tested in the literature behind our ratings.
- About 2 tablespoons (10g)
- Larger portions
- Much larger portions
Porcini are High FODMAP at a usual serving, though about 2 tablespoons (10g) is low, driven by Mannitol.
- Only about 2 tablespoons (10g) is low.
- Mannitol builds as you eat more, so larger portions are moderate and much larger portions are high.
- Drying concentrates the mushroom, so dried porcini are easy to overdo.
Use a small amount for deep flavor, or a splash of mushroom-infused oil to bring the taste while leaving the mannitol behind.
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Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.
References
- Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
- Measurement of short-chain carbohydrates in common Australian vegetables and fruits by HPLC. Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
- Quantification of fructans, galacto-oligosaccharides and other short-chain carbohydrates in processed grains and cereals. Biesiekierski et al. (2011), J. Human Nutrition and Dietetics 24(2):154-176.
- Dietary sorbitol and mannitol: food content and distinct absorption patterns. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
- FODMAPs: food composition, defining cutoff values and international application. Varney et al. (2017), J. Gastroenterology and Hepatology 32(Suppl 1):53-61. Supplies the low, moderate and high cutoffs used on this page.
Last reviewed September 22, 2026.