Full Spectrum Shiitake Mushroom

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Swanson Full Spectrum Shiitake Mushroom supplement is part of an herbal tradition that dates back centuries. Like the other herbals in the Swanson Premium Full Spectrum line, this Shiitake Mushroom dietary supplement is a 100% pure traditional herbal. Nothing fancy, just pure, high-quality, whole-herb Shiitake Mushroom at an affordable price... something you expect from Swanson Health Products. It is sourced from its native location, tested for purity and safety and manufactured under the strictest quality controls. Carry on the herbal tradition and build the bridge of wellness between the past, present and future with Full Spectrum Shiitake Mushroom.


Supplement Facts

Serving Size 2 Capsules

Servings Per Container 30

Amount Per Serving % Daily Value
Shiitake mushroom (Lentinus edodes) (fruit tops) 1 gram *

*Daily Value not established.

Other Ingredients: Gelatin, microcrystalline cellulose (plant fiber), magnesium stearate, silica.

Suggested Use: As a dietary supplement, take two capsules per day with water.

Warning: For adults only. Do not take this product if you are pregnant or nursing. Consult your healthcare provider before using this or any product if you are taking medication or have a medical condition.

Storage Instructions: Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.




  1. What are the health benefits of shiitake mushrooms?
    Shiitake mushrooms have been valued in traditional wellness practices for centuries and are known for their naturally occurring polysaccharides, antioxidants, and other beneficial compounds. They are commonly used to support overall wellness and are a popular ingredient in mushroom-based supplements. Shiitake mushrooms also provide naturally occurring nutrients and phytonutrients that contribute to their reputation as a functional food.
  2. What are beta-glucans?
    Beta-glucans are naturally occurring polysaccharides found in mushrooms, oats, yeast, and other foods. In mushrooms such as shiitake, beta-glucans are among the most studied compounds and are often highlighted in functional mushroom supplements. These naturally occurring compounds contribute to the popularity of shiitake and other wellness-focused mushrooms.
  3. Can I take shiitake supplements every day?
    Many shiitake mushroom supplements are designed for daily use as part of a balanced wellness routine. Always follow the serving directions on the product label and consult your healthcare provider if you are pregnant, nursing, taking medications, or have a medical condition.
  4. How is shiitake different from other mushroom supplements?
    Shiitake is one of several popular functional mushrooms used in dietary supplements. While mushrooms such as reishi, lion's mane, maitake, and turkey tail each contain their own unique blend of naturally occurring compounds, shiitake is particularly valued for its naturally occurring polysaccharides, including beta-glucans, as well as its long history of culinary and traditional wellness use. Many people choose shiitake as part of a broader mushroom wellness routine.
  5. Why choose a standalone shiitake mushroom supplement?
    Swanson Shiitake Mushroom 500 mg delivers shiitake mushroom as a single-ingredient formula, making it a convenient choice for individuals who want to add this traditional functional mushroom to their wellness routine without additional mushroom species or herbal blends. Each capsule provides 500 mg of shiitake mushroom, allowing you to enjoy the naturally occurring compounds found in shiitake as part of a simple, focused supplement regimen.
  6. Is Swanson Premium Shiitake Mushroom 500 mg suitable for special diets?
    Swanson Premium Shiitake Mushroom 500 mg is non-GMO, making it a great choice for individuals seeking supplements made without genetically modified ingredients. However, this product is not gluten free and is not suitable for vegan or vegetarian diets. If you have specific dietary preferences or restrictions, we recommend reviewing the complete ingredient list before use.