Swanson Full Spectrum® Shiitake Mushroom is a pure, traditional herbal supplement that supports immune health and overall vitality. Part of an herbal tradition dating back centuries, this formula delivers 100% whole-herb Shiitake Mushroom—sourced from its native environment, tested for purity and safety, and manufactured under strict quality standards. Known for its rich nutritional profile, Shiitake is traditionally used to strengthen the immune system, support cardiovascular health, and promote energy and longevity. Swanson’s Full Spectrum line preserves the natural integrity of each herb to maintain its full range of benefits.
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Key Benefits:

• Supports a healthy immune system
• Promotes cardiovascular health and vigor
• Provides traditional herbal wellness support
• Features full-spectrum whole mushroom cap formula
• Pure, high-quality, and safety-tested herbal supplement