Are Mushrooms Low FODMAP?

If you’ve been advised to follow a low FODMAP diet, you may have been told to avoid mushrooms. Thankfully, this is not necessary for all mushrooms, and plenty of mushroom varieties can be enjoyed on a low FODMAP diet.

Whilst some are considered high FODMAP, others can be enjoyed as part of a gut-friendly diet

In this blog, we’ll explore what FODMAPs are, which mushrooms fit into a low FODMAP plan and how to enjoy them without compromising on flavour.


What Are FODMAPs?

FODMAPs, or Fermentable Oligosaccharides, Disaccharides, Monosaccharides and Polyols, are a group of short-chain carbohydrates. They are found in many types of food.

Although harmless to most people, FODMAPs can cause digestive discomfort in individuals with sensitive guts or conditions like irritable bowel syndrome (IBS).

When consumed, FODMAPs ferment in the gut, producing gas and drawing water into the intestines. This can cause bloating and digestive discomfort for those with sensitivity.

Understanding which foods are low FODMAP can help you avoid them in your diet. In the next section, we’ll explore where mushrooms fit into this  and which varieties are best for a low FODMAP diet.


Which Mushrooms Are Low FODMAP?

Mushrooms vary significantly in their FODMAP content. To help you make informed choices, here’s a breakdown of low and high FODMAP mushroom varieties:

Low FODMAP Mushrooms

Mushroom TypeFODMAP NotesPortion Size
Oyster Mushrooms (Pink, Yellow, King)Naturally low in FODMAPs.No restriction (within reason).
Canned Button MushroomsThe canning process significantly reduces FODMAP content.No restriction.
Slippery Jack MushroomsLow in FODMAPs.Up to 40g.
Chestnut MushroomsLow FODMAP if consumed in smaller portions.Up to 75g.
Dried Shiitake MushroomsHigh when fresh, but low in small dried portions.Up to two mushrooms.
Dried Porcini MushroomsNaturally low in FODMAPs.Moderate serving sizes.

High FODMAP Mushrooms

Mushroom TypeFODMAP NotesAvoid or Limit
Fresh Button MushroomsHigh in mannitol.Avoid.
Fresh Shiitake MushroomsHigh in mannitol.Avoid.
Portobello MushroomsHigh in mannitol and fructans.Avoid.
Enoki MushroomsHigh in fructans.Avoid.
Chanterelle MushroomsHigh FODMAP in larger servings.Limit to small portions.

Portion Sizes Matter

Even low FODMAP mushrooms can become problematic in large servings. For example, while dried shiitake mushrooms are considered low FODMAP at two mushrooms, larger quantities can exceed safe thresholds. Monitoring portions is key to keeping your meals FODMAP-friendly.

In the next section, we’ll look at the nutritional benefits of low FODMAP mushrooms and how they can be a delicious part of your diet.


Benefits of Including Low FODMAP Mushrooms in Your Diet

Low FODMAP mushrooms aren’t just a great option for sensitive stomachs—they’re also packed with nutritional benefits that support overall health. Here are some of the key advantages of including these varieties in your meals:

Rich in Essential Nutrients

Low FODMAP mushrooms, such as oyster and chestnut mushrooms, are excellent sources of B vitamins like riboflavin and niacin, which aid energy production and support the nervous system.

High in Antioxidants

Mushrooms are rich in antioxidants, including selenium, which helps protect cells from oxidative stress and boosts immunity.

Low in Calories

Ideal for weight management, mushrooms are naturally low in calories while still being filling due to their fiber content.

Versatile and Flavourful

These mushrooms are easy to incorporate into a variety of dishes, enhancing both flavour and nutrition. Whether you’re sautéing them as a side dish or using them as a base for soups and sauces, they’re a simple yet effective way to elevate your meals.

Incorporating low FODMAP mushrooms into your diet allows you to enjoy their many health benefits without compromising digestive comfort. 

Next, we’ll discuss how you can enjoy the freshest varieties by growing them yourself.


Enjoy the Freshest Low FODMAP Mushrooms with Merryhill Mushrooms

Low FODMAP mushrooms, like oyster and chestnut varieties, offer a delicious and gut-friendly way to enjoy all the benefits mushrooms have to offer. Why not take it a step further by growing your own? With Merryhill Mushrooms’ organic grow kits, you can cultivate fresh, nutrient-packed mushrooms right at home.

Discover the joy of growing and cooking with the freshest mushrooms available—shop our grow kits today and elevate your meals! 


Authored by: Kieran