When your patients get an upper respiratory infection, whether it’s a cold, flu, ear infection, sinus infection, or other illness, recovering quickly is the top priority.

Fortunately, clinically validated pleuran from oyster mushrooms can not only help them recover faster, it can help prevent your patients from getting sick in the first place. Taken daily, or at the first sign of an illness, it is incredibly powerful:

• Prevents colds, flus, sinus infections, and ear infections

• Relieves congestion, runny nose, sore throat, and other symptoms

• Works quickly and shortens illness duration

• Strengthens overall immune defenses

Stop Infections and Speed Recovery with Oyster Mushroom Pleuran
Mushrooms have been part of traditional healing practice for generations, and for good reason. Compounds from mushrooms have been shown to stop tumor growth, improve physical stamina, and enhance mental well-being. The right mushrooms also provide powerful immune-strengthening actions.

One that has been clinically studied for 25 years and has 40 published studies to back it up, is the oyster mushroom (Pleurotus ostreatus), and more specifically, pleuran, a compound found exclusively in this particular example.

Whether in a daily formula, consisting of 100 mg of pleuran and 100 mg of vitamin C as a preventative supplement for children and adults, or in an acute formulation for adults taken during an active infection, with 300 mg of pleuran plus 160 mg of vitamin C and 10 mg of zinc, it can help clear sinuses, control coughs, prevent infections, and speed recovery.

How it Works: Pleuran Strength Trains the Immune System
While mushrooms have been part of culinary and medical traditions for generations, we’re only beginning to unravel why they work so well to strengthen the immune system. Some researchers have referred to the stimulating effect that oyster mushroom pleuran has on the immune system as “trained immunity.” Pleuran reprograms immune cell reactions and, over time, helps build resistance. Interestingly, while pleuran is named, in part, after the species of mushroom, Pleurotus ostreatus, that contains it, “pleura” also refers to the lungs specifically, and breathing and sinus clarity generally. Experience and clinical studies show that it is a very aptly named component of these mushrooms.

Additionally, pleuran is an insoluble beta-glucan found only in oyster mushrooms. Being insoluble, it interacts with Peyer’s patches, which are immune-influencing sites in the small intestines as it moves through the digestive system. These small groups of follicle-like tissues are connected to the lymphatic system. They work as part of the immune system’s early warning system and will alert and activate lymphocytes, white blood cells that intercept and stop bacterial and viral invaders. This is why it is so important to supplement with pleuran on an empty stomach.

Once pleuran binds to macrophage receptors in the intestinal wall, protective responses are activated. Pleuran also prevents viral infiltration and replication and encourages healthy gut bacteria, which also boosts immune resistance to bacterial, viral, and fungal infections. 

Seasonal Colds and Flus are Not Inevitable
Cold and flu season affects everyone, especially kids. Children typically have had less time to develop strong immune systems and spend much of their days in close proximity with other kids, it’s easy to see why upper respiratory infections are so common—typically 6 to 8 per year. Not surprisingly, these infections spread to entire families, with everyone either becoming ill or taking care of those who are under the weather. At that point, time off from school and altered work schedules become the norm, no matter how careful your patients are. And if this situation sounds familiar, it does not need to be inevitable.

Reduces Childhood Infections by 50%
Upper respiratory tract infections and the cold and flu season for children typically corresponds with the school year. Clinically studied for safety and efficacy, pleuran shows great results for stopping infections in kids.

For example, one study reported that a majority of children taking this extract for three months, starting in August, saw a drop in illnesses by over 50 percent compared to the year before. They went from an average of 8.9 infections per year to just 3.6 during this treatment time—an impressive, and positive change of pace.

Another clinical study examined the preventive effects of oyster mushroom pleuran on children and found virtually the same results. After three months of treatment, the number of upper respiratory tract infections was reduced by half as well. And that also includes fewer ear infections and less cases of bronchitis, the common cold, laryngitis, and even pneumonia. Plus, it was extremely well-tolerated by the children in the study and got a high approval rating for effectiveness from 85 percent of their parents.

Yet another clinical study reported similar results after supplementing with pleuran—50 percent fewer respiratory tract infections during the treatment time. Again, that included fewer instances of ear infections, bronchitis, and the common cold. Plus, the effects appeared to last even after the treatment period, showing that it truly strengthens and trains the immune system to defend against a variety of illnesses.

One study that combined oyster mushroom pleuran and vitamin C reported that 36 percent of the children taking this combination didn’t have any respiratory infections during the active treatment period. Bear in mind that the children participating in this study had previously dealt with at least 5 infections in the past year leading up to the study. Pleuran also reduced frequency of other flu and flu-like illnesses and cases of lower respiratory tract infections. Researchers found that this combination appeared to assist in antibody production and help mature the immune responses in the children, which may explain the preventative effects seen even after the supplement was no longer being taken.

In addition to colds, many children and adults suffer from recurring seasonal allergies that cause just as much havoc as any infection, and sometimes actually lead to increased infections because of the way allergies tax the immune system. But here too, pleuran from oyster mushrooms can help.

A double-blind, placebo-controlled clinical study of children with recurrent upper respiratory tract infections found that pleuran reduced the number of eosinophils, white blood cells typically associated with intense allergic responses. It also moderated levels of immunoglobulin E (IgE), antibodies that surge to cells in the nose, lungs, skin, or throat that then release compounds that cause allergy symptoms, like sneezing, itching, or coughing. If your patients or your their contend with seasonal allergies, daily use of pleuran before and during peak allergy season can definitely help.

Prevents Infections in Adults, too
Clinical research shows that oyster mushroom pleuran has remarkable benefits in adults, too. Patients that seem to come down with a cold after physically demanding activities, like intensive workouts, bicycling or running events, or a repeated exposure to the elements because of their jobs, may be a recurring theme in your practice. That’s not surprising.

Even though physical activity is a must for good health, exercise can sometimes deplete the strength of the immune system, leaving a person open to illnesses. Fortunately, pleuran addresses that very issue.

Placebo-controlled clinical studies showed that after periods of intensive exercise, oyster mushroom pleuran prevented upper respiratory infections, preserved infection-fighting levels of natural killer (NK) cells, and strengthened white blood cell activity. By comparison, the placebo group saw their NK levels drop by 28 percent, making them much more prone to illness.

Oyster mushroom pleuran finely tunes immune responses in cases of autoimmune conditions as well. For example, individuals with Crohn’s disease are often susceptible to other infections, including respiratory illnesses, even though their primary concern is an intestinal condition. This can be due to their immune-suppressing medications or the autoimmune condition itself.

Fortunately, a double-blind placebo-controlled clinical study reported that pleuran significantly prevented secondary respiratory illnesses during the 12-month regimen. It worked well with the participant’s conventional medication and did not trigger any Crohn’s symptoms.

The Synergy of Vitamin C

Vitamin C is one of the best-known immune boosters. Taken for prevention, it may reduce the incidence of colds by as much as 50 percent. But it is key to get vitamin C regularly during the year and at the first signs of illness, because it can be used up quickly when the immune system is under attack. Vitamin C also has a natural antihistamine effect and alleviates allergy symptoms, making it an excellent partner to pleuran.

Vitamin C was combined with oyster mushroom pleuran in some of the clinical studies mentioned earlier as an active placebo. Those same studies reported that compared to vitamin C alone, the combination of pleuran and vitamin C showed double the effectiveness in preventing flu symptoms and respiratory infections.

High-Dosage Pleuran with Vitamin C and Zinc Quickly Stops Acute Symptoms in Adults
Higher levels of pleuran, vitamin C, and the addition of zinc is a perfect recommendation for acute relief. It’s the right choice for any adult patient who suddenly finds themselves dealing with intensive respiratory infection symptoms.

In acute cases, zinc can be especially helpful. This mineral is also recommended for illnesses ranging from seasonal flu viruses to COVID-19. It prevents viruses from replicating and helps keep your existing defenses strong. Zinc also helps your body adapt and fight bacteria or viruses that it has never encountered in the past. This powerful nutrient has been found to reduce the duration of cold symptoms by 42 percent compared to placebo, but like vitamin C, it needs to be taken at the first symptoms of an illness. So it’s understandable that the researchers who pioneered pleuran as a natural medicine also recommend a short-term boost that includes zinc.

Prevents Secondary Infections in Chronic Conditions

Pleuran from oyster mushrooms has also been shown to be effective in preventing or reducing the symptoms that accompany herpes (HSV-1) flare-ups. This is good news for anyone who uses conventional drug treatment, because in much the same way that antibiotics can cause bacterial resistance, long-term use of the antiviral medication acyclovir can cause viral resistance. Plus, people struggling with herpes often develop respiratory flu-like symptoms because their immune system is already taxed.

Fortunately, these immune-modulating compounds can help.

In a clinical study, participants with HSV-1 were provided with either a placebo or a combination of a higher dosage of oyster mushroom pleuran (300 mg), vitamin C (160 mg), and zinc (10 mg) for the first 10 days of the treatment. These nutrients were given at higher levels as a way of jump-starting the immune response.

The results came quickly. Within only five days, a higher proportion of individuals in the pleuran group were already free of symptoms. After the intensive, acute phase of treatment, participants took the lower, daily maintenance dosage level of pleuran (100 mg) and vitamin C (100 mg) for 120 days–the same level recommended to adults and children to prevent colds, flus, and other infections. As reported in other studies, those taking the pleuran combination in this long-term segment saw the duration of any accompanying respiratory symptoms, like runny nose and cough, greatly reduced compared to the placebo group.

So, for stopping intense acute symptoms and knocking out an illness in adults, the high dosage combination of pleuran, vitamin C, and zinc works very well. You can determine whether or not you’d like your patients to follow that with a daily maintenance dose just to keep the immune system well poised to stop any further illness. If they’re susceptible to respiratory tract infections, ear infections, or other issues, it may be a good idea.

What to Know About Pleuran: Recommendations

Before the pleuran is extracted, the oyster mushrooms are hand-harvested and carefully separated from their caps. The stems are kept at a cold temperature following harvest, with refrigerated trucks used to transport them. This prevents enzyme damage to pleuran, and helps it retain its immune-strengthening actions. The stems are then dried and standardized for up to 95 percent measured pleuran content. Pleuran must be taken on an empty stomach. As described earlier, pleuran needs to come into contact with specific cells in the intestines in order for it to work. Food can block pleuran from making this contact and render it ineffective. To get the full benefits of pleuran, take it 30 minutes before or two hours after a meal.

Children and Daily Immune Strength for Adults: For a safe and effective combination recommend a combination of 100 mg of pleuran and 100 mg of vitamin C to your patients’ daily regimens. Clinical studies found that children responded best when this formula was taken right at or before the beginning of the school year, around August, and continued on through March. Of course, adults and children can take it daily, especially during allergy season when reactions to pollen are at their height, or when the potential for asthma symptoms is greatest.

Acute Cold and Flu Relief in Adults: Oyster mushroom pleuran is extremely valuable for battling virtually any challenge to the immune system. A 300 mg dosage of pleuran combined with 160 mg of synergistic vitamin C and 10 mg of zinc works quickly to relieve runny nose, sore throat, congestion, and ear infections, and helps speed recovery.

Pleuran Strengthens Immune Responses for Cold and Flu Season—and Beyond

Pleuran stops infections and relieves symptoms during active infections, and taken daily, it also prevents colds, flus, ear infections, allergies, and asthma. Pleuran is incredibly effective and safe, with 25 years of research and real-world use to back it up. When your patients want to protect themselves and their families, and stay strong through cold and flu season—and beyond—you can recommend add pleuran from oyster mushrooms to their regimens with confidence.

THE IMMUNE SYSTEM: Two Systems in One

We all have, in a sense, two immune systems, the innate and adaptive (also called acquired) immune systems. The innate immune system encompasses everything you are born with that can stop infections. That includes things that many people normally wouldn’t think of as “immune defenders” like their skin, saliva, mucous membranes, and stomach acid. But all of them help prevent viruses or bacteria from getting their feet in the door.

The innate immune system also includes specialized white blood cells that can respond to any threats from pathogens like viruses and bacteria.

The adaptive immune system is what helps the body develop immunity to a specific bacteria or virus after exposure or illness. The adaptive immune system includes T-cells, antibodies, and white blood cells that recognize invaders that survive the innate immune system, and either bolster immune strength as a result, or destroy the infected cells so that they move out of the body altogether.

When in doubt, always consult your physician or healthcare practitioner. This article is intended to provide you with information to maintain your health.

InfoMedica Suggests These Formulas:

For children or adults for daily prevention or long-term use: Vitamin C (as ascorbic acid) 100 mg, Active polysaccharide complex 100 mg providing Beta-1,3/1,6-D-Glucan, Pleuran isolated from Oyster Mushroom (Pleurotus ostreatus).

OR

For short-term use in adults with acute respiratory infections: Vitamin C (as ascorbic acid) 160 mg, Zinc 10 mg (from zinc bisglycinate chelate), Active polysaccharide complex 300 mg, providing Beta-1,3/1,6-D-Glucan, Pleuran isolated from Oyster Mushroom (Pleurotus ostreatus).