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Expert guides to health conditions from Parsley Health.

Condition Guide

Clear, science-backed explanations of common health questions, from symptoms and diagnoses, to how functional medicine approaches root-cause care.

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Understand what your lab results really mean. We break down biomarkers, blood tests, and emerging diagnostics, and how clinicians use them to guide care.

Labs & Biomarkers

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Browse all the latest articles and videos from Parsley Health, sorted by newest first.

Latest Articles

Daily habits matter. Explore how movement, sleep, stress, and recovery influence your health, and how to support your body sustainably.

Lifestyle & Movement

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Real stories from Parsley Health members, along with major company updates and announcements that reflect how our care works in real life.

Member Stories & Updates

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Practical, clinician-informed nutrition guidance — including diets, food strategies, and eating patterns that support whole-body health.

Nutrition & Diet

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A clear, clinical look at supplements and therapeutic tools — what works, what doesn’t, and how they’re used safely as part of personalized care.

Supplements & Therapies

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PMOS affects 1 in 5 women and is the leading cause of infertility in the US. Dr. Robin Berzin shares three natural ways to manage symptoms—starting with blood sugar, supplements, and exercise.

3 Things You Can Do to Manage Your PMOS

Functional Medicine vs Longevity Medicine: What’s the Difference?

Rheumatoid Arthritis (RA): Symptoms, Causes, and a Root-Cause Approach to Autoimmune Joint Health

Explore the best holistic doctor platforms for personalized, whole-body care, including Parsley Health’s root-cause approach and insurance-covered care.

Best Holistic Doctors: Top Platforms for Personalized, Whole-Body Care

The signs of autoimmune disease may depend on the organ that is affected. Some of the common signs may include redness, swelling, and diarrhea. 

5 Early Warning Signs of Autoimmune Disease

Learn how Parsley Health's functional medicine clinicians are different than other holistic medicine doctors and clinics out there.

How Is Parsley Health Different From Other Functional Medicine Doctors and Clinics?

Learn what to know before taking progesterone without estrogen, including potential benefits, risks, and how it may affect hormone balance and overall health.

What to Know Before Taking Progesterone Without Estrogen

Gut dysbiosis symptoms include bloating, fatigue, and chronic digestive upset. Learn what causes gut microbiome imbalance and how functional medicine treats it at the root.

Gut Dysbiosis: Symptoms, Causes, and How to Treat It

What is LDL cholesterol and why does it matter? Learn what high LDL means, common causes, and how lifestyle changes may support healthier cholesterol levels.

LDL Cholesterol: What It Is & How to Manage It

Psoriasis on the feet can cause itching, scaling, and discomfort. Learn common symptoms, triggers, and treatment options that may help manage foot psoriasis.

Psoriasis on Feet: Symptoms, Causes & Treatment

Looking for natural ways to manage anxiety? Learn science-backed strategies, lifestyle changes, and holistic approaches that may help support calmer mental health.

10 Ways to Manage Anxiety Naturally (Without Medication)

Psoriasis vs eczema: what’s the difference? Learn how symptoms, causes, and triggers compare, plus how to recognize each condition and support skin health.

Psoriasis vs Eczema: What’s the Difference?

What is fibermaxxing? Learn what this high-fiber trend means, potential health benefits, possible risks, and how to increase fiber intake in a balanced way.

What Is Fibermaxxing? Is It Good for You & Should You Do It?

What is lipedema? Learn the symptoms, causes, and how lipedema differs from obesity or lymphedema, plus how it’s diagnosed and managed.

What Is Lipedema? How to Tell If You Have Lipedema

What is estriol cream? Learn how this estrogen therapy works, potential benefits, safety considerations, and who may consider estriol during menopause.

Everything You Need to Know About Estriol Cream

Hormonal belly fat is common, especially with stress, aging, or hormone shifts. Learn what causes hormone belly and how to reduce it safely.

Hormonal Belly: Common Causes and 4 Ways To Get Rid of Hormonal Belly Naturally

Looking to heal your thyroid naturally? Learn evidence-based ways to support thyroid health through diet, stress management, sleep, and lifestyle habits.

How To Health Your Thyroid Naturally: 8 Thyroid Healing Practices You Can Start Today

Why does my body feel heavy, tired, or weak? Learn the most common causes, from thyroid issues to nutrient deficiencies, and what you can do about it.

Why Does My Body Feel Heavy and Tired? Causes & What Helps

Better sleep supports weight loss by regulating hormones, stress, and metabolism. Here’s what the research actually says.

Does Better Sleep Help With Weight Loss? What the Research Actually Says

Functional nutrition coaches are trained in nutrition, stress reduction, positive lifestyle change and more. Research shows they can improve health outcomes. Here's how they can help you.

Why A Nutrition Coach Is Key to Lasting Wellbeing

Mold toxicity can cause brain fog, fatigue, congestion, and more. Learn the real signs of mold exposure, how to identify mold poisoning symptoms, and what to do next.

12 Mold Toxicity Symptoms & Mold Exposure Signs You Shouldn’t Ignore

A “cortisol detox” isn’t about flushing hormones, it’s about supporting a healthy cortisol rhythm. Learn what it is, what to eat, and evidence-based ways to lower cortisol.

Cortisol Detox: Effective Ways To Naturally Lower Your Cortisol Stress Hormones

Waking up in the middle of the night? Learn common reasons you keep waking up at night and what your sleep interruptions may be telling you.

Why Do I Keep Waking Up In The Middle of The Night? 15 Reasons For Insomnia & Poor Sleep

Learn how to increase progesterone naturally and medically. Understand causes of low progesterone, symptoms, and evidence-based ways to support hormone balance.

How to Increase Progesterone Naturally & Medically: Causes, Symptoms, and Options

Most annual labs miss the markers that explain fatigue, weight changes, mood swings, and more. Discover the 6 lab categories that reveal the root causes of your health.

The Six Lab Categories That Reveal What Your Routine Bloodwork Misses

Looking for natural ways to get rid of eczema? Learn what causes eczema, which treatments may help, and how a root-cause approach can support relief.

How to Get Rid of Eczema Naturally: 6 Natural Treatment Options

Know the early signs of lupus in females: fatigue, joint pain, butterfly rash, brain fog, and more. Learn which symptoms to watch for and when to see a doctor.

12 Early Signs of Lupus in Females: Symptoms Women Should Know

Curious about a heavy metal detox? Learn what heavy metals are, common exposure sources, detox options, testing, and potential risks to know.

Heavy Metal Detox: Symptoms, Side Effects, & Detox Treatments for Heavy Metal Exposure

Looking for menopause treatment options? Learn about evidence-based menopause treatments and natural strategies for symptom relief and hormone balance.

Menopause Treatment Options: Natural Ways to Find Symptom Relief

Curious about a liver cleanse detox? Learn what actually supports liver detox, which myths to avoid, and how to cleanse your liver safely and naturally.

Liver Cleanse Detox: How To Cleanse Your Liver Naturally

Can GERD be cured permanently? Learn what causes chronic acid reflux, which treatments help, and how lifestyle and root-cause care can support lasting relief.

How to Cure GERD Permanently: Treatment Options For GERD & Acid Reflux

The MTHFR gene mutation is common and can affect how the body processes folate. Learn MTHFR mutation symptoms, testing, and treatment options.

MTHFR Gene Mutation: Symptoms, Testing, and 6 Natural Treatments Options

Macrocytic anemia causes enlarged red blood cells. Learn symptoms, causes, and how megaloblastic anemia differs, and what it may mean for women.

Macrocytic Anemia vs Megaloblastic Anemia: Differences, Symptoms, and What Is It

If your stomach is constantly tight and swollen, there may be a bigger issue at play. Here are several reasons why you may feel bloated 24/7 and how to fix it.

6 Reasons You Feel Bloated All the Time—and What to Do About It

Experiencing burnout? Here are tips on how to recover, according to the functional medicine experts at Parsley Health.

How To Recover from Burnout: 6 Ways To Fight Stress

By taking a root-cause approach to addressing long COVID symptoms, the doctors at Parsley Health have developed a protocol that helps people recover from the lingering virus. Learn more about Parsley's effective long COVID treatment. 

Why Parsley Health's Root-Cause Approach to Long COVID Treatment Works

What is Parsley Health’s Medicine?

Can functional medicine help with fibromyalgia? Learn how root-cause testing, sleep, and nutrition may ease symptoms when standard care isn't enough alone.

Can Functional Medicine Help With Fibromyalgia?

Can functional medicine help with ADHD? See what the evidence says about nutrition, sleep, and root-cause testing, and how it fits alongside standard care.

Can Functional Medicine Help With ADHD?

Can functional medicine help with SIBO? Learn how breath testing, targeted nutrition, and root-cause care address bacterial overgrowth and prevent relapse.

Can Functional Medicine Help With SIBO?

Can functional medicine help with Crohn's disease? See how root-cause care may support remission alongside your GI specialist, from nutrition to gut testing.

Can Functional Medicine Help With Crohn’s Disease?

Do GLP-1 patches work for weight loss? Learn what the science says about their ingredients, effectiveness, safety, and how they compare with GLP-1 medications.

Do GLP-1 Patches Work? What the Science Actually Says

Learn how chronic stress may accelerate aging, affect your hormones and overall health, and what you can do to reduce or potentially reverse its effects.

Does Stress Age You? What Chronic Stress Does to Your Body and Whether It Can Be Reversed

Learn the early signs of perimenopause, common symptoms, when it can begin, and what to expect as your hormones and menstrual cycle change.

How Do I Know If I’m Starting Perimenopause? Early Signs, Symptoms, and What to Expect

Learn how to lose weight during menopause, why weight gain happens, and practical ways to support your hormones, metabolism, and overall health.

How To Lose Weight During Menopause: Understanding the Reality of Menopause Weight Gain

Can Functional Medicine Help With Anxiety?

Is a Hair Mineral Analysis Test Worth It? What It Can Actually Reveal About Your Health

What Is Estrogen Dominance? Common Causes, Symptoms, and How to Support Hormonal Balance

Functional Medicine vs Holistic Medicine: What’s the Difference?

Can Functional Medicine Help With Weight Loss?

Learn common causes of a heavy, bloated stomach, simple ways to find relief, and when ongoing bloating may need medical evaluation.

Why Does My Stomach Feel Heavy and Bloated? Causes, Relief, and When to Get Checked

Learn when functional medicine may be covered by insurance, what services may qualify, and how Parsley Health helps make care more accessible.

Is Functional Medicine Covered by Insurance? What to Know Before You Start Care

What is psoriasis? Learn common symptoms, causes, types, and treatment options for this chronic inflammatory skin condition and how it’s managed.

Psoriasis: What It Is, Symptoms, Causes, Types & Treatment

Hormone replacement therapy (HRT) may help manage menopause symptoms. Learn potential benefits, risks, and what to consider when exploring HRT.

Hormone Replacement Therapy (HRT) for Menopause

What is leaky gut syndrome? Learn common symptoms, causes, testing options, and ways to support gut health and intestinal barrier function.

Leaky Gut Syndrome: Symptoms, Diet, Tests & Treatment

Sudden crashing fatigue in women can feel overwhelming. Learn common causes of low energy in women, what may trigger crashes, and when to seek care.

Sudden Crashing Fatigue In Women: Hormone Causes of Low Energy

What’s the strongest candida killer? Experts explain natural candida killers, antifungal options, and why a multi-step approach works best.

What’s The Strongest Candida Killer? Experts Weigh In On Natural Candida Killers

Candida overgrowth can cause persistent symptoms. Learn evidence-based, natural ways to rebalance Candida, support gut health, and reduce recurrence.

How to Cure Candida Naturally & Get Rid of Candidiasis Permanently

Learn how functional nutrition coaches support behavior change, personalize care, and help translate medical insights into sustainable daily habits.

What Does a Functional Nutrition Coach Do?

Can functional medicine help with PCOS? Learn how a root-cause approach addresses insulin resistance, hormones, and inflammation alongside standard care.

Can Functional Medicine Help With PCOS/PMOS?

Do cortisol blockers actually work? Learn what the research shows about supplements and medications that claim to lower cortisol, and what helps instead.

Cortisol Blockers: What Works and What Doesn’t

Discover the advanced lab tests functional medicine doctors order, from hormone panels to gut testing, and what these markers reveal that standard labs miss.

What Advanced Lab Tests Does a Functional Medicine Doctor Order?

Learn what optimal testosterone levels for men look like, how ranges are defined, symptoms of imbalance, and when a personalized approach may help.

Optimal Testosterone for Men: Evidence-Based Ranges, Symptoms, and How to Support Healthy Levels

How To Read Your Bloodwork Like a Longevity Doctor

Learn the common causes and symptoms of vitamin B12 deficiency, how it’s diagnosed, and treatment options to discuss with a clinician.

Vitamin B12 Deficiency: Causes, Symptoms, and Treatment

Learn what low ferritin levels can mean, common causes of low iron stores, symptoms to watch for, and when to talk with a clinician.

Why Are My Ferritin Levels Low? Low Ferritin Causes

Explore DHT blockers for women’s hair loss, including options, safety, and side effects, and how hormonal balance may impact hair thinning and regrowth.

DHT Blockers for Women’s Hair Loss: Options, Safety, and Side Effects

Does adding salt to water help hydration? Learn the science, potential benefits, and risks, and when electrolyte support may be helpful for optimal fluid balance.

Does Adding Salt to Water for Hydration Actually Work?

Explore the different types of magnesium, their benefits, and how to choose the right form to support sleep, stress, digestion, and overall health.

Different Types of Magnesium and Their Benefits: Which Magnesium Is Best?

Electrolyte imbalance can affect hydration, nerves, and muscles. Learn common symptoms, causes, and ways to restore healthy electrolyte balance.

Electrolyte Imbalance: Symptoms, Causes, and How to Fix It

Compare the best functional health lab platforms, including Parsley’s Functions, Superpower, Mito, and InsideTracker. Learn how clinician-led testing differs.

Top 5 Best Functional Health Labs Platforms: Parsley vs Function vs Superpower vs Mito vs InsideTracker

Learn the most common types of blood tests, what results can show about your health, how testing works, and when follow-up may be helpful.

Blood Tests: Types, Results & How They Work

Learn what hormonal imbalance really means, common symptoms and causes, and evidence-based ways to support hormone balance over time.

Hormonal Imbalance: Causes, Symptoms & Treatment

Learn what optimal testosterone levels for women look like, how ranges are defined, symptoms of imbalance, and when a personalized approach may help.

Optimal Testosterone for Women: Evidence-Based Optimal Range for Testosterone in Women

Bone loss begins decades before routine screening. Learn why women 30–50 benefit from early DEXA scans to track bone density, muscle mass, and long-term health.

The DEXA Scan: The Most Overlooked Longevity Test for Women in Their 30s and 40s

How much CRP level is dangerous? Learn what high C-reactive protein levels mean, when to be concerned, and how inflammation affects long-term health.

CRP Levels: How High C-reactive Protein (CRP) Levels Can Be Dangerous

Learn how Parsley Health uses functional testing and advanced lab work to uncover root causes, guide personalized care, and go beyond routine blood tests.

Functional Testing at Parsley Health: Labs That Go Beyond Routine Care

Discover 7 common causes of a lower belly pooch in women, how to identify what may be contributing, and practical steps to address it.

What Causes Low Belly Pooch in Women? 7 Real Reasons, and How to Tell Which Is Yours

Learn how to improve gut health with evidence-based diet and lifestyle strategies, common symptoms to watch for, and when to seek support.

How to Improve Gut Health: Diet, Lifestyle, & Treatment Options

Learn what the AIP diet is, how it may support autoimmune health, which foods to eat or avoid, and how to approach it safely.

Autoimmune Protocol Diet (AIP): A Beginner’s Guide

Berberine may support weight and metabolic health, but it isn’t right for everyone. Learn the benefits, risks, and what to know before taking it.

Berberine for Weight Loss: Benefits, Risks, and What to Know Before Taking It

Parsley Health, the leading functional medicine telehealth provider, is now in-network nationwide through insurance with Aetna, Cigna, UnitedHealthcare, and more.

Parsley Health Becomes the First Functional Medicine Provider to Accept Insurance Nationwide

Wegovy, Zepbound,, and other GLP-1 medications may not be for everyone. Learn about commom GLP-1 alternatives that can help to increase GLP-1 naturally.

GLP-1 Alternatives: 10 Foods and Supplements That May Increase GLP-1 Naturally

Did you know heart rate variability is an indicator of health? Here's why HRV matters and how to improve it.

What Is Heart Rate Variability (HRV)? Normal Ranges, and How to Improve It

This Hashimoto’s diet plan will show you exactly what you need to eat to feel better, and foods to avoid. Plus, learn about the latest treatments for Hashimoto’s disease.


Everything You Need to Know About the Hashimoto’s Diet — Plus, New Treatments for Hashimoto’s Thyroiditis

Find out the best foods for thyroid health, the foods you should stay away from if you have a thyroid issue, and how to know if you have a thyroid disorder.

7 Foods That Support Thyroid Health

Learn what digestive bitters are, how they support digestion, and when to take them for best results. Discover the benefits of digestive bitters for bloating, constipation, and gut health.

Digestive Bitters: Benefits, How to Use, and When to Take Them For Digestion

Learn the benefits of alpha lipoic acid, potential side effects, and how to take it safely to support metabolism, nerve health, and antioxidant balance.

Alpha Lipoic Acid: Benefits, Side Effects, and How to Take It

Acupressure mats stimulate pressure points to release endorphins, reduce pain, ease stress, and support better sleep. Here's what the research says and how to use one.

What Does an Acupressure Mat Do? Key Benefits, Uses, and More

Battling symptoms of fatigue, brain fog, anxiety, muscle cramping, and more, but can’t find the source? Learn how Parsley Health uncovered mold toxicity in one patient with these symptoms.

How We Discovered Jenn's Mold Toxicity

Extreme fatigue before your period is driven by luteal phase hormonal shifts, insulin resistance, and progesterone changes. Learn why it happens and what actually helps.


Fatigue Before Your Period: Causes, Luteal Phase Symptoms, and Remedies

Told you have IBS? Melissa’s lifelong gut issues turned out to be SIBO. See how Parsley Health used advanced testing and personalized care to uncover the real cause.

Latest Articles

Can Functional Medicine Help With Fibromyalgia?

Can Functional Medicine Help With ADHD?

Can Functional Medicine Help With PCOS/PMOS?

Cortisol Blockers: What Works and What Doesn’t

Can Functional Medicine Help With SIBO?

Can Functional Medicine Help With Crohn’s Disease?

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