What Are Benefits and Potential Side-Effects of Reishi Mushrooms? - Cannabotech CBD Questions & Answers

What Are Benefits and Potential Side-Effects of Reishi Mushrooms?

Learn what form of fungus the Reishi mushroom is and what genus it belongs to. Find out what the benefits are and whether there are any possible side effects.

By Samuel Njoroge
Edited by Taj Schlebusch

Updated April 14, 2023.

The Reishi mushroom from Asia has been in use for over a hundred years to manage several health issues. Although it has recently regained popularity, not much is known about this mushroom.

What we do know is that it's a rare type of fungus that may have the potential to boost your immune system, manage cancer cells, and relieve symptoms of many other health issues.

May Boost Your Immune System

Some studies suggest Reishi may have the potential to stimulate white blood cells (vital components of your immune system).

Other studies conducted on cancer patients suggested that compounds found within the mushroom may improve the efficiency of natural killer cells. This type of white blood cell is involved in fighting infections and carcinogenic cells in your body system.

May Help Manage Fatigue and Depression

Scientific research suggests that Reishi mushrooms may be adaptogens.

A study involving patients with neurasthenia (a condition associated with physical and mental exhaustion) found that an intake of reishi mushrooms could help alleviate aches, feelings of irritability, and joint pain.

Potential to Manage Blood Pressure

Researchers suggest that some of the compounds in this fungus may assist in keeping your blood pressure in check.

However, there could be possible drug interactions as this may lower your BP to critical levels.

May Fight Allergies

According to previous research results, Reishi may have antihistamine properties. Their effect may include improving the oxygen supply in your body, which may effectively manage chronic and allergic asthma.

The Possible Side Effects

Although these fungi may effectively manage several health issues, you must understand some of the side effects of Reishi that you might experience.

They include:

  • Bleeding
  • Dizziness
  • Nausea
  • Lower blood pressure


Although Reishi has the potential for many benefits, it is always best to talk to your physician about the recommended dosage, possible drug interactions, and side effects before starting this regimen.