Did you know that ordinary mushrooms can hold enormous potential in the fight against diabetes? According to a review of studies published in Molecules (2023), edible and medicinal mushrooms can help regulate blood glucose levels, improve insulin sensitivity, and support pancreatic cell regeneration. Discover the scientific basis that suggests mushrooms are not only a culinary addition but also a potential future for functional therapy for type 2 diabetes.
What is diabetes and why do we need alternatives?
Type 2 diabetes is a chronic metabolic disease in which the body loses its ability to effectively use insulin – a hormone that regulates blood glucose levels.
Standard antidiabetic drugs, although effective, often cause side effects such as gastrointestinal discomfort, liver damage, or the risk of hypoglycemia. Therefore, more and more attention is being paid to alternative methods – including medicinal mushrooms.
Why functional mushrooms?
Mushrooms such as Reishi, Shiitake, Maitake, and Oyster mushrooms not only provide protein, vitamins, and minerals, but are also a source of polysaccharides, terpenoids, alkaloids, and other bioactive substances with potential antidiabetic effects.
Studies have shown that they can:
- lower blood sugar levels,
- increase insulin secretion,
- protect pancreatic beta cells,
- inhibit enzymes responsible for glucose absorption,
- reduce inflammation and oxidative stress.
See also: Flatulence problems. Adaptogens supporting intestinal function
Functional mushrooms and their effects in the context of diabetes
1. Ganoderma lucidum (Reishi)
Rich in polysaccharides, β-glucans, and triterpenoids. In in vivo studies, it reduced glucose levels and improved liver function. A decrease in HbA1c levels and an increase in insulin sensitivity were observed.
2. Lentinula edodes (Shiitake)
Contains lentinan, β-glucans, and ergosterol. In studies on rats with streptozotocin-induced diabetes, thanks to Shiitake's properties, a decrease in glucose levels and an increase in insulin were observed.
3. Pleurotus ostreatus (Oyster mushroom)
Lowers sugar levels by inhibiting digestive enzymes and stimulating insulin secretion. Clinical studies have shown improvement in lipid parameters and glycemia in diabetic patients.
4. Agaricus blazei (Almond mushroom)
Polysaccharides and β-glucans increase insulin and lower glucagon. Studies have shown improved glycemia and reduced insulin resistance.
5. Hericium erinaceus (Lion’s Mane)
Known for its neuroprotective effects, it also supports glycemic balance and has anti-inflammatory properties.
How do mushrooms affect glucose metabolism?
Edible and medicinal mushrooms affect blood sugar regulation at many levels. The bioactive compounds they contain, such as polysaccharides and triterpenes, can inhibit the action of digestive enzymes – α-glucosidase and α-amylase – which slows down the absorption of sugars from food and limits sudden spikes in glucose after meals.
Additionally, they support the activation of the PI3K/Akt pathway, which improves cellular insulin sensitivity, and increase the expression of the GLUT4 transporter responsible for glucose transport into cells. Mushrooms also have anti-inflammatory effects, limiting NF-κB activity, and strengthen the body's antioxidant defense, protecting cells from oxidative stress.
Thanks to these mechanisms, functional mushrooms can support glucose metabolism in a natural and comprehensive way, making them a promising complement to diabetes therapy.
Clinical evidence – what do scientific studies say?
Although many studies on the effects of functional mushrooms have been conducted on animal models, an increasing number of clinical trials involving humans confirm their therapeutic potential in the treatment of type 2 diabetes.
One of the more well-known studies concerned the use of Ganoderma lucidum extract (also known as Ganopoly). In patients with type 2 diabetes who took 1800 mg daily of this extract for 12 weeks, a significant reduction in blood glucose levels and glycated hemoglobin (HbA1c), which is an indicator of long-term diabetes control, was observed.
Similar results were obtained in a study on Agaricus blazei. Patients taking 500 mg of this mushroom three times a day for 12 weeks showed improved insulin sensitivity and reduced insulin resistance, which is crucial in the treatment of type 2 diabetes.
Very promising results were also yielded by a long-term study involving Pleurotus ostreatus (oyster mushroom). People who consumed 200 grams of this mushroom daily for a year experienced not only a reduction in blood glucose levels, but also an improvement in lipid profile (lower cholesterol) and a decrease in blood pressure, which demonstrates its multidimensional impact on metabolic health.
These results show that medicinal mushrooms can be a valuable element supporting classical diabetes therapy, and their use in functional medicine is becoming increasingly scientifically justified.
Mushrooms as functional food
They are an excellent source of B vitamins, vitamin D, fiber, and minerals. They have a low glycemic index and support intestinal microflora. The production of mushroom extracts under controlled conditions allows for obtaining substances with strong therapeutic effects – especially polysaccharides and triterpenes.
Challenges and future
Despite many promising results, further clinical trials involving humans are needed. Current data suggest that mushrooms can be a valuable supplement to diabetes therapy, but their use requires standardization and scientific confirmation of safety.
Why trust Ollywell functional mushrooms?
Ollywell is a brand that focuses on the highest quality and safety of its products.
All adaptogens:
- Come from local farms: minimizing carbon footprint and supporting local producers.
- Are standardized: meaning that each serving contains a specific amount of active ingredients with proven effectiveness.
- Are created using an advanced production process: Ollywell extracts are produced using the ultrasonic method, which allows for the preservation of the full spectrum of bioactive ingredients.
- Are comprehensively tested: each batch undergoes rigorous quality testing.
By choosing Ollywell adaptogens, you invest in natural support for your health. Take care of yourself comprehensively and let nature support you every day.
Read also: Ollywell quality you can trust
Source: Shamim M.Z. et al. Exploring Edible Mushrooms for Diabetes: Unveiling Their Role in Prevention and Treatment. Molecules 2023, 28, 2837. DOI: 10.3390/molecules28062837









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