ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2025 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
Back

King Oyster

Also known as: Pleurotus eryngii, Eringi, King Brown

Overview

King Oyster (Pleurotus eryngii) is a dietary mushroom that contains an assortment of bioactive molecules. Oyster mushrooms in general tend to be more popular than other Bioactive Mushrooms due to their taste and usage in meals. King Oyster mushrooms are a species of the Pleurotus family of mushrooms, and related to regular Oyster mushrooms. They have a large stem that confers a relatively 'meaty' or 'hearty' flavor (Umami) and are seen as a medicinal mushroom. Not too many studies are conducted on King Oyster mushrooms, but they appear to have the same properties of regular bioactive mushrooms in the sense that they interact with the immune system and may 'boost' immunity to sickness. King Oysters seem to be more potent at suppressing fatty acid absorption relative to other mushrooms according to one study, and have been implicated in increasing testosterone 5-fold. This latter study was conducted with very high doses (15-20% of feed) and was conducted in elk (out of all research animals, elk) and has not been replicated. It also appears to be more estrogenic and bone protective in animal forms of menopause than other medicinal mushrooms tested.

Benefits

King Oyster mushrooms contain bioactive compounds that interact with the immune system, potentially enhancing immune response and providing protective effects against various diseases. They may also influence hormonal levels, particularly testosterone and estrogen, which could have implications for metabolic health and bone density.

How it works

The potential benefits of King Oyster mushrooms include boosting immunity, suppressing fatty acid absorption, and enhancing testosterone levels. They may also provide estrogenic effects and bone protection, particularly in contexts related to menopause.

Side effects

At this moment in time, all that can be recommended is to consume the fruiting body or stem of the King Oyster mushroom in your diet if you want the effects. Supplementation would work fine (and if we take motifs from other Bioactive Mushrooms would be around 1-3g daily) but minimal human studies have been conducted.

Dosage

There are no specific side effects listed for King Oyster mushrooms, but as with any supplement, individuals should be cautious and consult with a healthcare provider, especially if they have underlying health conditions or are taking other medications.

FAQs

What are the other names for King Oyster?

King Oyster is also known as Pleurotus eryngii, Eringi, and King Brown.

Supplements Containing King Oyster

ONE SUPERFOOD PROTEIN Blueberry Cobbler by VITA HUSTLE®
83

ONE SUPERFOOD PROTEIN Blueberry Cobbler

VITA HUSTLE®

Score: 83/100
organic supergreens by zena™ NUTRITION
60

organic supergreens

zena™ NUTRITION

Score: 60/100
SEVEN WONDERS by CHOQ® CHOQ NATION
53

SEVEN WONDERS

CHOQ® CHOQ NATION

Score: 53/100
organic supergreens fruits & vegetables by zena™ greens
78

organic supergreens fruits & vegetables

zena™ greens

Score: 78/100
organic supergreens fruits & vegetables by Zeno™ greens
0

organic supergreens fruits & vegetables

Zeno™ greens

Score: 0/100

Recommended Articles

Top Nutrients for Radiant Skin: What You Need to Know

Top Nutrients for Radiant Skin: What You Need to Know

A balanced diet rich in vitamins A, C, D, E, antioxidants, omega-3 fatty acids, and zinc is essential for healthy skin.

Best Ingredients for Healthy Hair Growth

Best Ingredients for Healthy Hair Growth

Vitamins D, iron, zinc, and natural oils like rosemary are crucial for healthy hair growth.

Top Thyroid-Supporting Ingredients

Top Thyroid-Supporting Ingredients

Selenium, iodine, vitamin D, and zinc are crucial for healthy thyroid function.

Top Zinc Forms for Best Absorption & Dosage Guide

Top Zinc Forms for Best Absorption & Dosage Guide

Zinc picolinate is the most absorbable form of zinc, with an RDA of 8-11 mg/day for adults, affected by dietary factors.