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  • 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

  • Metabolic flexibility: The secret engine behind energy, fat loss, and longevity.
    Longevity & Metabolic Health

    Metabolic flexibility: The secret engine behind energy, fat loss, and longevity.

    Blood Sugar & Metabolism, Exercise, Longevity, Sleep
    Robin Berzin MD
    October 21, 2025

    Metabolic flexibility is your body’s ability to switch between burning carbs and fat for fuel. It’s also the true engine of longevity. 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

  • Can processed & deli meats be healthy?
    Toxins, Nutrition & Modern Exposures

    Can processed & deli meats be healthy?

    Blood Sugar & Metabolism, Gut Health, Nutrition, Toxins & Environment
    Robin Berzin MD
    September 4, 2024

    Here’s my controversial take: When eaten the right way, deli meat is a great source of protein and healthy fat. Read more

  • 10 nutrient-dense snacks I pack on-the-go
    Toxins, Nutrition & Modern Exposures

    10 nutrient-dense snacks I pack on-the-go

    Blood Sugar & Metabolism, Gut Health, Nutrition
    Robin Berzin MD
    August 7, 2024

    Eating healthy when you’re traveling feels impossible, I know. These are the nutrient-dense snacks I throw in my bag to avoid feeling bloated and foggy. 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

  • Are seed oils toxic to your health?
    Toxins, Nutrition & Modern Exposures

    Are seed oils toxic to your health?

    Blood Sugar & Metabolism, Gut Health, Nutrition, Toxins & Environment
    Robin Berzin MD
    October 23, 2024

    Are seed oils toxic like everyone says? It depends on how you eat them. Here’s everything you need to know. Read more

  • 4 fasting for women strategies to optimize longevity
    Women’s Health & Hormones

    4 fasting for women strategies to optimize longevity

    Blood Sugar & Metabolism, Hormones, Longevity, Women’s Health
    Robin Berzin MD
    August 12, 2025

    The internet loves to argue: “Is fasting bad for women’s hormones?” But that’s the wrong question. We should ask: what type of fasting for women? Read more

  • How to Pick a Protein Bar That’s Actually Healthy
    Toxins, Nutrition & Modern Exposures

    How to Pick a Protein Bar That’s Actually Healthy

    Blood Sugar & Metabolism, Gut Health, Nutrition, Supplements
    Robin Berzin MD
    August 21, 2025

    Most protein bars are ultra-processed junk in disguise. Here’s what to avoid, the 4 bars I actually recommend, and why ingredients matter more than the ma Read more

  • Toxins, Nutrition & Modern Exposures

    You booze, you lose?

    Blood Sugar & Metabolism, Gut Health, Toxins & Environment
    Robin Berzin MD
    December 13, 2023

    I’m often asked if any alcohol is okay, how often it’s okay to drink, what to drink if you’re going to drink, and how to supplement around alcohol use. S 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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