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Nature's Way Astragalus extract is standardized to 0.5% astragalosides, one of the most studied components. It ranks as one of China's most important herbal medicines and is commonly used in Chinese cuisine.
Nature's Way Astragalus has been used in Chinese medicine for centuries for its immune support and normalizing effect on body function. Early Chinese writing refer to Astragalus as "the superior Tonic."*