Reishi mushroom (Ganoderma lucidum) lowers blood pressure through triterpene-mediated ACE inhibition, reduction of arterial stiffness, and inhibition of angiotensin-converting enzyme activity — effects documented in both animal hypertension models and small human trials.
Reishi mushroom (Ganoderma lucidum) has a centuries-old history as a natural remedy for cardiovascular conditions, and a growing body of modern research is examining its supportive role in managing hypertension safely alongside conventional care.Hypertension: A Global Health Epidemic
Hypertension, or high blood pressure, is a global problem that is the main cause of cardiovascular diseases, including heart attacks and strokes, as well as damage to the kidneys and vessels of the brain. According to WHO, about 1.28 billion adults in the world have hypertension, and only half of them receive adequate treatment. Chronically high blood pressure is also accompanied by sleep disturbances, depression and cognitive decline. Pharmaceutical treatment, although effective, is often complicated by side effects such as dizziness, nasal congestion, cough and nausea.Therefore, the search for natural, safe and effective therapeutic agents is urgent.Reishi Mushroom: A Natural Remedy for High Blood Pressure
In this context, the Reishi mushroom (Ganoderma lucidum) attracts special attention, a natural remedy with a centuries-old history of use in traditional Chinese and Japanese medicine, and modern research confirms that Reishi has a wide range of medicinal properties, in particular, it helps to lower blood pressure.Bioactive Compounds in Reishi That Support Cardiovascular Health
Reishi is a mushroom with a unique composition that includes more than 400 biologically active compounds such as polysaccharides (including beta-D-glycans, heteropolysaccharides and glycoproteins), triterpenes, germanium, saturated and unsaturated amino acids, sterols, lipids, antioxidants, vitamins B1, Key components include:Polysaccharides that reduce inflammatory processes and improve the elasticity of blood vessels.Triterpenes capable of blocking angiotensin converting enzyme (ACE), which is responsible for increasing pressure.Antioxidants that protect cells from damage by free radicals.Microelements - iron, calcium, zinc, as well as B vitamins, which strengthen the general immunity and support the health of the cardiovascular system.Russian Study: Reishi Reduces Blood Pressure by 17%
A recent study conducted at the Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences confirmed the effectiveness of this mushroom in the fight against hypertension. The results were published in the journal Phytomedicine in 2018.The study used an aqueous extract of Reishi that was administered daily for seven weeks to hypertensive rats, and the drug losartan, an angiotensin II AT1 receptor antagonist, was used as a positive therapeutic control.The results showed:Systolic blood pressure decreased by 17% and diastolic blood pressure by 13% compared to the control group.The blood flow rate in the carotid arteries increased by 33%.The lumen of the carotid arteries increased by 66%.An increase in the level of excitatory neurotransmitters (glutamate and glutamine) by 38% was noted, which indicates an improvement in cerebral blood circulation and neuron function.The energy exchange rate in the brain has increased by 12%, which is a sign of improving the function of neurons.Japanese Study: Reishi Lowers Cholesterol and Triglycerides
Another study conducted in Japan (Journal of NutRorni Science and Vitaminology, 1988). Scientists from Thohok University studied the effect of Reishi powder on blood pressure and plasma lipid levels. The results will demonstrate:Systolic pressure decreased by 10%.The level of total cholesterol in the plasma decreased by 20%.The cholesterol content in the liver decreased by 15%.Plasma triglycerides decreased by 11%.There is a decrease in cholesterol deposition in vascular tissues, which reduces the risk of atherosclerosis.Reishi for Long-Term Cardiovascular Protection
Therefore, studies confirm that Reishi not only lowers pressure, but also improves metabolism in the brain, which can contribute to the prevention of cognitive disorders. It is important that Reishi also helps to accelerate cholesterol metabolism and reduce its synthesis, which helps stabilize the level of lipids in the blood. Regular use of Reishi helps to maintain normal blood pressure, improves cerebral circulation and promotes overall strengthening of the body. It is not only a supportive aid, but also a useful tool for the prevention of many chronic diseases when combined with a heart-healthy lifestyle and appropriate medical care.How Does Reishi Lower Blood Pressure?
Reishi works on blood pressure through several complementary mechanisms rather than one. Its triterpenes — the ganoderic acids — inhibit angiotensin-converting enzyme (ACE), the same target as prescription ACE inhibitors like lisinopril; blocking ACE reduces the production of angiotensin II, a hormone that constricts blood vessels. Reishi also supports the release of nitric oxide, which relaxes and widens the vessel wall, and its antioxidant activity protects the endothelium (the vessel lining) from the oxidative damage that drives arterial stiffness over time. On top of that, its polysaccharides help calm the low-grade inflammation linked to high blood pressure. Because reishi is also a calming adaptogen that lowers stress-driven cortisol and sympathetic activation, it may ease the stress component of blood pressure as well. The result is a gentle, multi-pathway effect — useful as support, but modest compared with dedicated antihypertensive drugs.What Does the Clinical Evidence Say?
It is worth being honest about the strength of the human evidence. Much of the strongest data comes from animal models and small studies, and results in people have been mixed. A 2015 Cochrane review of Ganoderma lucidum for cardiovascular risk factors concluded there was not yet enough good-quality trial evidence to recommend it as a standalone treatment for hypertension or related risk factors (PMID 25686270). That does not contradict the promising mechanistic and animal findings above — it simply means reishi is best viewed as a complementary support while the larger human trials catch up. The practical takeaway is to treat reishi as one part of a blood-pressure plan that also includes diet, exercise, and, where prescribed, medication, rather than a replacement for any of them.How to Use Reishi for Blood Pressure Safely
If you want to try reishi for cardiovascular support, use a standardized extract and start low — around 500 mg to 1 g per day — before building up, and monitor your blood pressure at home so you can see any real change. The most important safety point is additive effect: reishi can lower blood pressure on its own, so combining it with antihypertensive drugs may push readings too low, causing dizziness or fainting. Never stop prescribed medication to switch to reishi, and tell your doctor before adding it so they can adjust monitoring. Reishi also has mild blood-thinning activity, another reason to coordinate with a clinician if you take anticoagulants. For amounts by product form see our reishi dosage guide, and for a full rundown of cautions see reishi side effects and interactions. You can also buy them in our store.1.Reishi fruit
2.Reishi capsules
3.Reishi extract
Frequently Asked Questions
Can reishi replace my blood pressure medication?
No. Reishi may offer modest supportive effects, but the human evidence is not strong enough for it to replace prescribed antihypertensives. Stopping your medication to rely on reishi is dangerous and can lead to uncontrolled blood pressure. Use reishi only as a complement, and always coordinate any changes to your medication with your doctor.How long does reishi take to affect blood pressure?
Reishi works gradually, not acutely. In animal studies, effects developed over about seven weeks of daily use, and human benefits similarly build over weeks to months of consistent intake. Expect to monitor your home blood pressure over at least 8 to 12 weeks before judging whether it is helping, rather than looking for a same-day drop.Is reishi safe with blood pressure drugs?
Only with medical supervision. Because reishi can lower blood pressure itself, taking it alongside drugs such as amlodipine or lisinopril can cause readings to fall too low, producing lightheadedness or fainting. Tell your prescriber before combining them, monitor more frequently in the first month, and watch for symptoms of over-low pressure like dizziness on standing.What dose of reishi is used for blood pressure?
Blood-pressure research has used higher loads than general wellness use — often the equivalent of several grams of dried mushroom or roughly 1 to 1.5 g of concentrated extract daily. Start low and increase gradually while monitoring. Choose a standardized fruiting-body extract, since potency varies widely between products and the active triterpenes drive the cardiovascular effect.Which form of reishi is best for the heart?
A dual-extracted (water and alcohol) fruiting-body extract is the most complete option, because the ACE-inhibiting triterpenes are alcohol-soluble while the anti-inflammatory beta-glucans are water-soluble. Plain reishi tea or water-only extracts capture fewer triterpenes. Check the label for beta-glucan content and an extraction ratio rather than relying on a generic "polysaccharide" figure.Related Articles
Sources
- Wachtel-Galor S, et al. Ganoderma lucidum (Lingzhi or Reishi). In: Herbal Medicine. 2011. PMID 22593926
- Jin X, et al. Ganoderma lucidum (Reishi mushroom) for cancer treatment. Cochrane Database Syst Rev. 2016. PMID 27045603
- Klupp NL, et al. Ganoderma lucidum mushroom for the treatment of cardiovascular risk factors. Cochrane Database Syst Rev. 2015. PMID 25686270