Reishi Mushroom Benefits: The Gut-Friendly “Mushroom of Immortality”

Angela Gioffre Nutritionist with 25 years of experience.

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Reishi mushroom (Ganoderma lucidum), known as Lingzhi in Traditional Chinese Medicine (TCM), has been treasured for over 2,000 years as a symbol of vitality, longevity, and spiritual harmony. Traditionally consumed as a tea or tonic, reishi is now recognised in modern research for its wide-ranging health benefits — especially its potential to nurture the gut microbiome and improve overall digestive wellness.

A Nutrient-Rich Functional Fungus

Reishi contains a diverse array of bioactive compounds, including:

• Beta-glucans – complex polysaccharides that support immune function and act as prebiotics.

• Triterpenes – known for anti-inflammatory, antioxidant, and liver-supportive effects.

• Peptidoglycans – compounds with immune-modulating properties.

• Polyphenols – antioxidants that help reduce oxidative stress.

This combination of nutrients makes reishi a true “functional food” — offering health effects beyond basic nutrition.

 Reishi and Gut Microbiome Health

Prebiotic Effects

The beta-glucans in reishi are non-digestible fibres that act as prebiotics — feeding beneficial bacteria such as Lactobacillus and Bifidobacterium.

By nourishing these “good bugs,” reishi helps improve:

• Microbial diversity – a key indicator of gut health.

• Short-chain fatty acid (SCFA) production – such as butyrate, which supports colon health, reduces inflammation, and strengthens the intestinal lining.

Microbial Proliferation & Balance

Animal and human studies have shown that reishi supplementation can increase beneficial bacteria while reducing opportunistic or pathogenic species. This balance may help reduce bloating, improve nutrient absorption, and support regular bowel movements.

Promotes calm and resilience in the mind and body

For over 2000 years Reishi has been the mushroom to promote calmness in the mind and resilience in the body.

 How to Use Reishi for Gut Health

• Powder – can be added to coffee, tea, or smoothies.

• Capsules – for consistent daily use.

Tip: Daily use over weeks or months is most effective for supporting gut microbial diversity.

Safety and Considerations

Reishi is generally safe for most adults. However:

• People on blood-thinning medication should consult a healthcare professional before use.

• Those with mushroom allergies should avoid it.

• Start with small doses and increase gradually to allow the microbiome to adapt.