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Cordyceps mushrooms are a family of club-shaped mushrooms that are full of nutrients, and have been both eaten and used in traditional medicine for thousands of years. [1, 2]
Benefits and Effects
Cordyceps can work well with other supplements that stack with amino acids, vitamin D, magnesium, zinc, and selenium. 
Cordyceps powder not only reduced the likelihood of cancers (particularly in the lung and skin) but shrank existing tumors in the lungs, skin, breast, liver, and colon. [4, 5, 3, 6, 7]
Cordyceps may also be attacking the tumors itself by preventing cancer cells from creating the proteins they need to survive. This encourages these cells to die off., shrinking the tumors. [8, 9, 10, 11, 12]
Cordycepin mushrooms also contain several compounds that kill bacteria and prevent viruses from multiplying in the body. 
Cordyceps mushrooms targets mast cells in the body – the cells responsible for the swelling responses seen in hives, angioedema (skin swelling), and anaphylactic shock. .
Cordyceps mushroom extract may also help keep cells alive for longer and improve their function over a long period of time. [14, 15]
Kidney and liver protection
Cordyceps may also have other protective effects on these organs that have not been determined. 
Cordyceps for men raises testosterone levels and leads to a higher level of healthy sexual activity in human subjects. 
Cordyceps mushrooms may provide a small amount of energy through glucose-containing polysaccharides and may increase ATP levels – the energy currency of the cell, which is responsible for powering every action we take. [18, 19, 21, 21, 22]
How Product Works
Cordyceps mushroom powder contains important minerals such as magnesium, zinc, and selenium, vitamin D, and the special compounds cordycepin and cordiceptic acid. [23, 24]
Zinc and magnesium support good overall health, stamina, and help fight diabetes.  Selenium is a mineral involved in proper hormone levels and reproductive health. [3, 26]
Take cordyceps extract supplements with meals, 2-3 times a day. Cordyceps dosage ranges from 1000-3000mg.
There are no known cordyceps side effects. However, it may interact with other conditions and cause them to be worse.
Cordyceps and Bleeding
Cordyceps supplements can exacerbate normal blood clots. Avoid taking cordyceps with other medicines and supplements that reduce clotting, as this can lead to serious side effects and bleeding.
Cordyceps and Caffeine
Cordyceps may interact with caffeine, leading to lower levels of testosterone. If you are using cordyceps as part of a stack for physical fitness or activity, cut back on the caffeine.
Avoid caffeine, guarana, and L-thiamine due to the testosterone interference – otherwise, there is a lot of room for personal choice.
Shiitake, Reishi, and Cordyceps
These three mushrooms are often combined into whole-body boosting supplements aimed at providing balanced nutrition and towards boosting the immune system against disease. They have been used traditionally together for thousands of years, both as medicines and as food, and interact well together.