Reishi Mushroom Supplement: Calories, Nutrition and Health Benefits
ChatGPT 
Claude 
AI Mode 
Perplexity The "Mushroom of Immortality" used for over 2,000 years in traditional medicine, now backed by modern science for immune support, stress relief, and better sleep.
Quick Nutrition Facts
Per 1 Capsule (500mg) | Per 100g Powder
| Nutrient | Per Capsule | Per 100g Powder |
|---|---|---|
| Calories | 10 kcal | 241 kcal |
| Protein | 0.5g | 10.6g |
| Carbohydrates | 2g | 63g |
| Fiber | 1g | 28g |
| Sugars | 0g | 1.7g |
| Fat | 0g | 2.2g |
| Beta-Glucans | 125mg | 25g |
| Triterpenoids | 20mg | 4g |
| Polysaccharides | 150mg | 30g |
| Potassium | 10mg | 200mg |
Macronutrient Breakdown
NUTRITIONIST INSIGHT
Reishi mushroom is a calming adaptogen, not a stimulant. Its beta-glucans and triterpenoids support immune function and stress resilience, with only 10 calories per capsule. Best taken in the evening for sleep and recovery support.
Myth Busters
MYTH #1: Reishi Mushroom Has No Real Health Benefits
TRUTH: Reishi is one of the most studied medicinal mushrooms. Over 400 bioactive compounds have been identified, including beta-glucans and triterpenoids with proven immunomodulatory, antioxidant, and anti-inflammatory properties.
MYTH #2: Reishi Supplements Are Just Empty Calories
TRUTH: With only 10 calories per capsule, reishi delivers concentrated bioactive compounds rather than macronutrients. The value lies in beta-glucans, triterpenoids, and polysaccharides, not calorie content.
MYTH #3: Reishi Can Replace Diabetes Medication
TRUTH: While reishi polysaccharides have shown hypoglycemic effects in clinical trials, they should never replace prescribed diabetes medication. Reishi may complement treatment under medical supervision, but evidence is still emerging.
MYTH #4: All Reishi Supplements Are the Same
TRUTH: Quality varies enormously. Fruiting body extracts contain more triterpenoids, while mycelium-on-grain products may be diluted with starch. Look for third-party tested products with standardized beta-glucan content.
MYTH #5: Reishi Works Instantly
TRUTH: Reishi is an adaptogen that works gradually over weeks. Most studies show benefits after 4-12 weeks of consistent use. Quick fixes are a myth; sustained supplementation is key.
NutriScore by Health Goals
| Health Goal | NutriScore | Why This Score? |
|---|---|---|
| Weight Loss |  | Only 10 calories per capsule. Zero fat, minimal carbs. No impact on calorie budget. |
| Muscle Gain |  | Not a protein source. Indirect benefit through immune support and better sleep recovery. |
| Diabetes Management |  | Polysaccharides may reduce blood sugar and HbA1C. Consult doctor; may interact with diabetes medication. |
| PCOS Management | | Anti-inflammatory properties may help. Adaptogenic effects support hormonal balance and stress management. |
| Pregnancy Nutrition |  | Insufficient safety data during pregnancy. Most experts advise avoiding reishi supplements while pregnant or breastfeeding. |
| Viral/Flu Recovery | | Beta-glucans boost natural killer cells and lymphocyte counts. Strong immune-modulating properties for recovery support. |
PERSONALIZED NUTRITION
Track your supplements with NutriScan for personalized NutriScores based on your specific health goals!
Blood Sugar Response to Reishi Mushroom Supplement
Understanding how reishi mushroom supplements affect your blood glucose can help you make informed decisions, especially if managing diabetes.
Typical Glucose Response Curve
*This chart shows typical blood glucose response for general healthy individuals. Individual responses may vary. Not medical advice.*
How to Optimize Supplement Timing
Reishi polysaccharides may help lower postprandial blood sugar by inhibiting alpha-glucosidase activity:
- 🌙 Evening with dinner - Supports overnight recovery and sleep quality
- 🍵 With warm water or tea - Enhances absorption of water-soluble beta-glucans
- 🥜 With healthy fats - Triterpenoids are fat-soluble; pair with nuts or avocado
- ⏰ Consistent daily timing - Adaptogenic benefits build with regular use over weeks
This approach maximizes both the calming adaptogenic effects and nutrient absorption from your reishi supplement.
Cultural Significance
Reishi mushroom (Ganoderma lucidum) is called "Lingzhi" in Chinese, meaning "divine mushroom" or "mushroom of immortality," with over 2,000 years of documented use.
In China and East Asia:
- Central to Traditional Chinese Medicine (TCM) as a "superior" herb
- Featured in the oldest Chinese pharmacopoeia, the Shennong Bencaojing (circa 200 CE)
- Symbolizes longevity, spiritual potency, and good fortune in Chinese art
- Used in Japanese Kampo medicine as "Reishi" (meaning "spiritual mushroom")
In India and Ayurveda:
- Known as "Ling Zhi" or adapted into Ayurvedic practice as a Rasayana (rejuvenative)
- Recognized for balancing all three doshas (Vata, Pitta, Kapha)
- Growing cultivation in Himalayan regions for domestic and export markets
Global Impact:
- Most researched medicinal mushroom worldwide with 4,000+ published studies
- Included in the American Herbal Pharmacopoeia
- Global market valued at over $5 billion annually
- Cultivated commercially in China, Japan, Korea, and increasingly in North America
Compare & Substitute
Reishi vs Other Medicinal Mushroom Supplements (Per 100g Powder)
| Nutrient | 🍄 Reishi | 🦁 Lion's Mane | 🐛 Cordyceps | 🦃 Turkey Tail |
|---|---|---|---|---|
| Calories | 241 kcal | 350 kcal | 310 kcal | 260 kcal |
| Carbs | 63g | 57g | 65g | 58g |
| Fiber | 28g | 8g | 12g | 33g |
| Protein | 10.6g | 22g | 24g | 18g |
| Fat | 2.2g | 3.5g | 3.6g | 1.8g |
| Beta-Glucans | 25g | 20g | 15g | 30g |
| Key Compound | Triterpenoids | Hericenones | Cordycepin | PSK/PSP |
| Best For | Immune support, sleep | Brain health, focus | Energy, athletic performance | Gut health, immunity |
Frequently Asked Questions
Is reishi mushroom good for the immune system?
Yes, reishi is one of the most studied mushrooms for immune function. Beta-glucans stimulate natural killer cell activity and increase lymphocyte counts at dosages of 6-9g daily. Clinical studies show enhanced CD8+ T cells and CD19+ B cells with regular supplementation.
Best practices: Take consistently for 4-12 weeks, choose fruiting body extracts with standardized beta-glucan content, and pair with vitamin C for enhanced absorption.
Can reishi mushroom help with sleep and stress?
Research suggests reishi promotes sleep through serotonin pathway modulation and HPA axis support. A study found 2g/day of reishi extract reduced cortisol levels and improved sleep quality over 8 weeks.
Tips for sleep support:
- Take 1-2 hours before bedtime
- Use hot water extract for better bioavailability
- Combine with magnesium for synergistic calming effects
- Allow 2-4 weeks for noticeable improvements
How many calories are in reishi mushroom supplements?
A typical 500mg capsule contains approximately 10 calories with 2g carbohydrates, 0.5g protein, and 0g fat. Per 100g of dried powder, reishi provides about 241 calories. The caloric impact of supplemental doses is negligible.
Can diabetics take reishi mushroom supplements?
Reishi shows promise for blood sugar management. Clinical trials using 1,800mg of Ganopoly (reishi polysaccharide extract) three times daily for 12 weeks significantly reduced HbA1C and plasma glucose in type 2 diabetes patients.
Important considerations:
- May enhance the effects of diabetes medications
- Monitor blood sugar closely when starting reishi
- Start with lower doses and increase gradually
- Always consult your endocrinologist before adding supplements
Is reishi mushroom safe during pregnancy?
There is insufficient safety data for reishi use during pregnancy and breastfeeding. Most health authorities and clinical references recommend avoiding reishi supplements during these periods.
Recommendation: Discontinue reishi supplements if pregnant or planning pregnancy, and consult your OB-GYN before any medicinal mushroom supplementation.
What is the recommended dosage of reishi mushroom?
General Guidelines:
- 1.5-3g daily - General wellness and maintenance
- 3-6g daily - Immune support, stress management
- 6-9g daily - Therapeutic doses used in clinical studies
- Extract forms - 1-1.5g daily (more concentrated)
Start low and increase gradually over 2 weeks. Take with food for better absorption. Cycle 8 weeks on, 2 weeks off for long-term use.
Track your supplements with NutriScan app to monitor how reishi fits into your overall nutrition plan.
Similar Nutritious Foods
4505 Chicharrones Classic Chili Salt
7 Eleven Japan Crispy Corn Cheese