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Knowledge Base

Guides on supplements, nutrition and the research behind them, written in plain language.

Showing 11 results: immune-function All Articles

  1. Copper-Zinc Imbalance: Why Your Ratio Matters More Than Levels

    After 15 years in clinic, I see copper-zinc imbalances constantly. Here's why the ratio matters more than individual levels for immune function, mood,...

    Vitamins & Minerals 8 min read

  2. Protein's Immune Secret: Why Athletes Get Sick & How to Fix It

    I used to think protein was just for muscle. Then I saw athletes getting sick constantly. Here's the research on balancing growth with immune health.

    Protein & Muscle 8 min read

  3. Vitamin A: More Than Just Carrots for Your Eyes

    Is vitamin A just for night vision? I've seen patients transform their skin and immune function with proper dosing. Here's what 18 years of clinical p...

    Vitamins & Minerals 8 min read

  4. Zinc Lozenges Are Mostly Useless—Here's What Actually Works

    Most zinc supplements won't stop your cold. I'm an RD with 15 years in clinics—here's the research-backed dosing, timing, and forms that actually matt...

    Vitamins & Minerals 8 min read

  5. Protein's Immune Boost for Athletes: What the Science Actually Says

    I used to think protein was just for muscle. Then I saw how athletes kept getting sick. Here's how adequate intake protects your immune system during...

    Protein & Muscle 9 min read

  6. Zinc for Testosterone: What Male Athletes Actually Need to Know

    A 2023 study found 40% of athletes have suboptimal zinc levels. Here's what that means for your hormones, energy, and performance—plus specific dosing...

    Sports & Energy 8 min read

  7. Protein's Immune Boost: Why Athletes Need More During Heavy Training

    Learn how adequate protein intake, especially specific amino acids like glutamine, supports immune health during heavy training. Practical dosing and...

    Protein & Muscle 8 min read

  8. Why Your Immune System Crashes After Hard Workouts (And How Protein Fixes It)

    Intense training can suppress immunity. Discover how strategic protein intake—especially glutamine—prevents infections and keeps athletes healthy.

    Protein & Muscle 8 min read

  9. Zinc's Gut Barrier Repair: Why Your Tight Junctions Need This Mineral

    A dietitian explains zinc's critical role in intestinal permeability, backed by clinical research and patient cases. Learn proper dosing, forms, and w...

    Vitamins & Minerals 8 min read

  10. Zinc Myths Debunked: What Actually Works for Your Immune System

    That zinc lozenge claim? Based on a tiny 1984 study. Here's what 40 years of research actually shows about zinc for immunity, deficiency signs, and sm...

    Health & Wellness 8 min read

  11. Selenium's Immune Power: More Than Just Thyroid Support

    Discover how selenium boosts glutathione, fights viruses, and supports immune function. Learn optimal dosing, forms, and who should avoid it.

    Vitamins & Minerals 9 min read

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