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"We're all holding our breath a little bit," said Peter Koshland, who teaches clinical pharmacy at UC San Francisco, "and just hoping that nobody gets hurt."

There are also products with poor bioavailability, undisclosed contaminants, inaccurate labeling, or exaggerated claims. Essentiallywhile the FDA technically does regulate supplements, its primarily around manufacturing quality and safety, requiring companies to follow current good manufacturing practices and taking action against products that are compromised or mislabeled

Optimized for laboratory use not for human or veterinary administration

Patients who describe a persistent mental haze, difficulty concentrating, or a sense that their cognitive sharpness has declined