Chitin and Human Body: Effects and Health Properties

Why Eating Mushrooms Can Cause Digestive Discomfort

Recently, we have received many questions about the fact that when eating mushrooms there is sometimes an upset stomach, nausea, and sometimes even vomiting.

All these reactions are related to the fact that all mushrooms contain chitin.

What Is Chitin and Why Can't Humans Digest It Easily?

Let's start with the fact that chitin is one of the most common polysaccharides in nature, it is part of the cell walls of fungi, is the main component of the external skeleton of insects, crustaceans and some other invertebrates. Chitin is insoluble in water and resistant to being broken down by human digestive enzymes. Chitin

Difficulty with digestion: Chitin is a rather hard and insoluble substance. Some people may find it more difficult to digest, leading to discomfort, bloating, or a feeling of heaviness.

Individual sensitivity: As with other dietary fibers, some people's bodies may be more sensitive to chitin. This sensitivity may manifest as bloating, gas, or even mild gastrointestinal upset.

Fermentation problems: In the colon, chitin can be partially fermented by bacteria, which can lead to increased gas formation and, accordingly, discomfort. This can especially affect people with sensitive intestines or irritable bowel syndrome (IBS).

Unusual diet: For people who rarely eat mushrooms or foods high in dietary fiber, the digestive system may not be used to processing such substances, which can cause temporary discomfort.

Allergic reactions: Some people may have an allergic reaction to mushrooms or their components, including chitin. This can cause more serious symptoms such as vomiting, rash, itching, or even breathing problems.

Scientific Findings on Chitin Digestion in Humans

In a study of the effects of chitin on the digestive system, it was found that humans have genetic variations that affect chitinase activity, which may explain the difference in the ability to digest chitin among different people.

How to Reduce Digestive Side Effects from Mushrooms

There are several practical strategies to minimize the digestive side effects of chitin-containing mushrooms. One of the most effective is thorough cooking — heat breaks down some of the chitin structure, making mushroom cell walls more porous and easier for digestive enzymes to access the beneficial compounds inside. Raw or undercooked mushrooms are significantly harder to digest and are not recommended for people with sensitive digestive systems.

Another approach is to start with small amounts and gradually increase your mushroom intake over several weeks. This allows your gut microbiome to adapt and develop better capacity for fermenting chitin-related fibers. People who eat mushrooms regularly tend to experience fewer digestive complaints than those who consume them only occasionally.

Mushroom Extracts as a Chitin-Free Alternative

For individuals who experience consistent digestive discomfort from whole mushrooms, extracts and tinctures offer a valuable alternative. The extraction process removes most of the insoluble chitin while concentrating the beneficial bioactive compounds — polysaccharides, beta-glucans, triterpenes — in a highly bioavailable form. This means you can enjoy the full health benefits of medicinal mushrooms without the digestive challenges associated with chitin-rich whole fruiting bodies.

Capsules made from finely milled mushroom powder are also generally easier to tolerate than eating whole mushrooms, as the grinding process partially disrupts the chitin structure and makes the contents more accessible to digestive enzymes. If you have a sensitive gut, starting with capsules or extracts is a wise first step.

You can also buy them in our store.
1. Amanita fruits
2. Amanita capsules
3. Amanita extract
4. Mushroom ground