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Knowledge Base
Guides on supplements, nutrition and the research behind them, written in plain language.
Showing 6 results: cold-and-flu All Articles
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Quercetin and Zinc: The Research-Backed Duo for Immune Defense
Discover how quercetin and zinc work together for immune support, backed by clinical studies and practical dosing advice from a nutrition specialist.
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My Skepticism on Andrographis for Colds: What the Data Actually Shows
I was taught to doubt andrographis for respiratory infections. A deep dive into the research—including a 2024 RCT with 847 participants—changed my cli...
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Goldenseal: The Berberine Herb You're Probably Taking Wrong
That claim about goldenseal curing every cold? It's based on 19th-century folk medicine, not modern science. Here's what the research actually shows a...
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Andrographis: The Bitter Truth About This Immune Herb
Dr. Michael Torres, ND, breaks down the research on andrographis for colds and flu. Learn dosing, what to avoid, and why quality matters.
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Quercetin & Zinc: The Immune Duo That Actually Works (Backed by Science)
Discover how quercetin acts as a zinc ionophore to boost immune function, with research-backed dosing protocols and real patient results from a clinic...
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Andrographis for Colds: When to Take It (and When to Skip It)
A naturopathic doctor explains how to use Andrographis at the first sign of illness to shorten cold duration—with specific dosing, timing, and brand r...
