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  • How to Choose a Protein Powder That Actually Works
    Toxins, Nutrition & Modern Exposures

    How to Choose a Protein Powder That Actually Works

    Exercise, Nutrition, Supplements, Women’s Health
    Robin Berzin MD
    April 21, 2026

    I make a protein smoothie 4–5 times a week. Here’s what most people — and a major smoothie chain CEO — don’t know about what’s actually in their powder. Read more

  • MTHFR mutations can cause anxiety, fatigue and fertility issues. You likely have one.
    Fertility & Parenting, Women’s Health & Hormones

    MTHFR mutations can cause anxiety, fatigue and fertility issues. You likely have one.

    Hormones, Lab Testing, Supplements, Women’s Health
    Robin Berzin MD
    March 5, 2025

    Knowing your genes, including MTHFR, can help you lower your disease risk, improve metabolic health, and overhaul your mental health. Read more

  • Bone Loss, Inflammation & Gut Health: The Missing Link
    Women’s Health & Hormones

    Bone Loss, Inflammation & Gut Health: The Missing Link

    Gut Health, Hormones, Supplements, Women’s Health
    Robin Berzin MD
    March 24, 2026

    I was diagnosed with osteopenia last year and discovered the third driver of bone loss most women never hear about: inflammation from visceral fat, and how the gut is the fix. Read more

  • GLP-1s and Libido: What the Research Shows
    Women’s Health & Hormones

    GLP-1s and Libido: What the Research Shows

    Blood Sugar & Metabolism, Hormones, Supplements, Women’s Health
    Robin Berzin MD
    April 7, 2026

    GLP-1s silence food noise — but they reach the same brain circuits that govern sex, motivation, and desire. Here’s what the research actually shows. Read more

  • The best “calm tech” to hack your vagus nerve
    Brain, Mood & Nervous System

    The best “calm tech” to hack your vagus nerve

    Brain Health, Mental Health, Supplements
    Robin Berzin MD
    December 18, 2024

    I’m fascinated with tech that promotes high “vagal tone,” i.e. stimulates the vagus nerve to help improve stress response. Read more

  • Why so many women are using creatine (including me)
    Women’s Health & Hormones

    Why so many women are using creatine (including me)

    Exercise, Longevity, Supplements, Women’s Health
    Robin Berzin MD
    July 8, 2025

    Women naturally store 20–30% less creatine than men. At 44, I’m calling this my Year of the Booty—aka time to prioritize building lean muscle mass. Creati Read more

  • All your questions answered about Ozempic and GLP-1s
    Longevity & Metabolic Health

    All your questions answered about Ozempic and GLP-1s

    Blood Sugar & Metabolism, Longevity, Supplements
    Robin Berzin MD
    November 23, 2023

    Should I take Ozempic? Does the weight come back? What exactly are GLP-1s?GLP-1s, or Glucagon-Like Peptides, are hormones produced by the intestines that r Read more

  • My personal microplastics protocol
    Toxins, Nutrition & Modern Exposures

    My personal microplastics protocol

    Personal Story, Supplements, Toxins & Environment
    Robin Berzin MD
    May 28, 2025

    I have a new mantra: healthier than ever. At age 43, I refuse to believe that my healthiest years are behind me, because I know they don’t have to be. My Read more

  • My personal supplement stack.
    Toxins, Nutrition & Modern Exposures

    My personal supplement stack.

    Longevity, Personal Story, Supplements
    Robin Berzin MD
    May 14, 2025

    I get asked so often from people if the supplements they are taking are legit, I feel like I should set up a roadside stand with a sign that says: “Will ev Read more

  • Omega-3 deficiency is as harmful as smoking
    Toxins, Nutrition & Modern Exposures

    Omega-3 deficiency is as harmful as smoking

    Blood Sugar & Metabolism, Brain Health, Nutrition, Supplements
    Robin Berzin MD
    April 2, 2025

    Supplementing with omega-3s is one of the most powerful things you can do for longevity, heart health, and slowing biological aging. Read more

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Robin Berzin MD

Robin Berzin MD is the founder of Parsley Health and your guide on the journey to being well.

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