immunity

Mushroom for Discussion: The Riddles of Reishi

By Amber Testa, CN Supplements Buyer & Armchair Mycologist

To those uninitiated into the wonders of mushrooms, Reishi is an unassuming entity. It is neither as strikingly colored as Turkey Tail, as luminescent as Lion's Mane, or as downright bizarre as Cordyceps. Indeed its physical form is simple and smooth, unlikely to attract much attention. The binomial name, ganoderma lucidum, literally means 'bright skin' in the Greek--a reference to its sleek brown surface. Reishi is a type of mushroom known as a bracket fungus, which means it doesn't have a stem or stalk. Instead it grows directly from the surface of trees (usually maple). It is either parasitic or saphrotrophic, growing on both living and decaying matter; indeed, it is as apt to colonize stumps as it is living trees.

But contrary to its plain appearance, perhaps no fungi has such an esteemed place in mythology as the Reishi. With written records of its use dating back as early as the first century B.C., it has been revered in Asia for thousands of years. In Traditional Chinese Medicine, it is known as lingzhi 靈芝, or "divine mushroom" and is known as the "mushroom of immortality". The common name 'Reishi' is a loanword from the Japanese; similar cognates also exist in Thai (het lin chue, เห็ดหลินจือ); Vietnamese (linh ch); and Korean (영지; 靈芝).

Reishi is sacred in Taoism, and was often consumed by monks before their meditation sessions. The term zhī specifically means 'fungi', but has been translated by various scholars as 'excrescence' or 'cryptogam' (a plant or fungi that reproduces via spores instead of seeds). In Taoism, Reishi was thought to belong to a mythical class of substance that gave the eater xian, or immortality, when ingested. This association with immortality has persisted into the present day, and is evident in Reishi's contemporary usage.

In contemporary herbalism, Reishi is used primarily as an immune booster. Initial studies have shown that it has the potential to boost white blood cell count among cancer patients, although research indicates it is best to use the mushroom in combination with traditional cancer therapies rather than directly in place of them. Reishi may also reduce inflammation in the body, specifically among blood cells. Early studies also show the potential for Reishi to reduce anxiety and depression, especially among cancer patients.

Commercially cultivated Reishi is usually grown on hardwood logs, or else a substrate of sawdust or wood chips. It is a deep reddish-brown, generally fan- or kidney-shaped, and often larger than a fist in size. Reishi is dry and sturdy, and often surprisingly heavy--indeed, it often resembles a piece of carved wood more than a mushroom! Though it is slightly bitter in flavor, it can be easily neutralized by mixing it with other ingredients. It can easily be powdered and added to hot chocolate, mixed into baked goods, or crumbled and added to tea blends. The versatility of Reishi also means you can find it in some more unusual formats, like sparkling beverages and even body care products!

At Cambridge Naturals, we carry a variety of Reishi supplements in various formats. You can shop our entire stock of Reishi products online here, or come in for some exciting mushroom discussions with our Supplements team!

Sources:

https://www.frontiersin.org/articles/10.3389/fmicb.2018.01557/full

https://www.ncbi.nlm.nih.gov/books/NBK92757/

The information in this blog post is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition.

ASTRAGALUS (Astragalus membranaceus): Shield & Strengthener

By Steph Zabel
Herbalist & Ethnobotanist

A sweet tasting, yellow-rooted plant, astragalus is an important herb for the home apothecary, especially in the winter months. Every fall I pull out my stash of sliced roots and start incorporating them into my soups and broths (more on that later…)

Astragalus Root2_SZ.jpg

This special plant is native to China where it has been used for thousands of years; it is becoming more and more popular in Western herbalism and is now cultivated in the U.S.

In Traditional Chinese Medicine astragalus is considered to be a restorative tonic, as it improves energy and stamina when used over time. Modern herbalists would call it an adaptogenic herb since it helps the body to overcome stress, disease and weakness and increases one’s resiliency.

An important immune system tonic, astragalus is wonderful when used preventatively against winter-time illnesses such as colds, flu, bronchitis and pneumonia. Not only does this root increase resistance to disease it also helps to tone and strengthen the lungs, which are the gathering place for infections and congestion. Astragalus root is also known to increase the number of stem cells in bone marrow and lymph tissue and encourages their development into active immune cells.

Photo by Tigerente via Wiki Commons

Photo by Tigerente via Wiki Commons

Whereas some herbs can open the body up to release toxins and pathogens through perspiration (such as a diaphoretic herb like elderflower), astragalus is on the opposite end of the spectrum: it helps to close off the body to outside influences and germs. Because of this closing or sealing action some people have even noticed that it reduces the amount that they perspire. This property is very useful when we are trying to avoid catching other people’s germs, especially during cold and flu season. We can think of astragalus as a shield against illness. Traditional Chinese medicine states that it increases the “protective chi” around the body that keeps out cold, infection and external influences.

Photo by Doronenko via Wiki Commons

Photo by Doronenko via Wiki Commons

You want to be sure to use this amazing action at the appropriate time, though. Because of the sealing property it has on the physical body traditional wisdom advises to avoid astragalus if you are sick or have an acute infection. That’s because it closes the body to external influences and prevents fewer things from coming in OR going out. Astragalus really is an herb best used to strengthen the immune system and prevent sickness… it is not for times of acute illness. (Depending on what’s going on, you could turn to other herbs such as thyme, elder and/or echinacea.)

HOW TO USE ASTRAGALUS:

To make a decoction of the root use 1 Tblsp. of the dried root per 2 cups of water and simmer for at least 20 minutes in a small, covered saucepan.

CONTRAINDICATIONS:

People with autoimmune disease should avoid astragalus. It is also believed that astragalus should not be taken during acute illness and infection.

Astragalus Root _SZ.jpg

RECIPE:

Astragalus slowly builds up the immune system and needs to be taken over longer periods of time (weeks to months) to be most effective. For prevention and immune-strengthening effects take daily. One of the best ways to get the supportive benefits of this herb is to eat it in soups and broths. The following recipe is one of my favorite ways to incorporate astragalus into my diet during the fall and winter months:

Steph’s Herbal Chicken Broth

bones, skin and leftovers of one roasted chicken
1 - 2 small chopped onions
2 chopped carrots (optional)
a handful of dried calendula flowers
6 - 8 large astragalus root slices
1 tablespoon black peppercorn
1 tablespoon dried thyme
4 cloves sliced garlic
1 star anise
1 small bunch of parsley, coarsely chopped
a little bit of salt
3 tablespoons apple cider vinegar

Place everything in a large pot and cover with water. Bring to a boil then lower the heat to a simmer. Skim off the scum that rises to the top. Cook for 12 - 24 hours, then strain and store in glass containers or freeze.

References:

stevenfoster.com

www.umm.edu

Steph Zabel, MSc, is an herbalist and botanical educator who helps urban dwellers connect with the plant world. She teaches seasonally-oriented herbal classes that focus on local plants, herbal medicine-making techniques, and plant identification. She is also the creator of Herbstalk, Boston’s community herbal conference. Learn more about her work at: www.flowerfolkherbs.com and www.herbstalk.org.


This blog series — Herbs and Botanicals— is for general health information only. This Web site is not to be used as a substitute for medical advice, diagnosis or treatment of any health condition or problem. Users of this Web site should not rely on information provided on this Web site for their own health problems. Any questions regarding your own health should be addressed to your own physician or other healthcare provider.