Hashimoto's thyroiditis is the most common cause of hypothyroidism, affecting millions of people, the majority of them women. Yet many people who are already receiving standard care continue to experience fatigue, brain fog, weight changes, and mood disruptions despite medication. Parsley Health Hashimoto treatment combines advanced testing with physician-led functional medicine to identify drivers of thyroid dysfunction and support long-term symptom improvement.
Hashimoto disease treatment & functional medicine care
"I told my endocrinologist I wanted a doctor who would treat me and not just my TSH. She said I wouldn't find one in this country — fortunately, I found my Parsley doctor, and my thyroid antibodies have practically disappeared."
Marianne G.
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of hypothyroidism cases are caused by Hashimoto’s thyroiditis
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of Parsley members improve or eliminate symptoms within 1 year of treatment
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of hypothyroidism cases are caused by Hashimoto’s thyroiditis
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of Parsley members improve or eliminate symptoms within 1 year of treatment
Hashimoto’s is one of the most common autoimmune diseases.
Hashimoto's treatment and symptoms we support
Hashimoto’s thyroiditis
Hypothyroidism
Fatigue and low energy
Weight changes and slowed metabolism
Brain fog and mood changes
Digestive symptoms and microbiome imbalance
Why Hashimoto's symptoms are often overlooked
Hashimoto’s is an autoimmune condition that affects thyroid hormone production, but symptoms can extend far beyond the thyroid.
Standard care often focuses on hormone replacement without investigating drivers of autoimmune activity
Many patients continue to experience fatigue, brain fog, weight changes, or mood symptoms even when thyroid labs appear “normal”
Factors like gut health, nutrient status, stress physiology, and inflammation can influence thyroid function
These interconnected factors are rarely evaluated together in conventional medicine
A physician-led model that combines conventional and functional medicine
Parsley Health delivers functional medicine through a physician-led clinical model designed to be consistent, evidence-based, and deeply personalized. Our clinicians are board-certified and conventionally trained, with additional fellowship training in evidence-based functional medicine. Care is guided by shared clinical protocols and continuously refined through outcomes data, research, and physician oversight.
Our Hashimoto's treatment might be right for you if you:
Have persistent fatigue or low energy
Struggle with brain fog, mood changes, or slowed metabolism
Experience symptoms despite taking thyroid medication
Think diet, stress, or inflammation may be affecting your thyroid health
Parsley's whole-body approach to Hashimoto’s treatment
Parsley Health uses a physician-led functional medicine model to understand how immune health, inflammation, and lifestyle factors interact when Hashimoto's symptoms are present.
In-depth medical visits exploring your full health history, symptoms, and thyroid lab trends
Advanced lab testing to evaluate thyroid function, autoimmune markers, inflammation, and nutrient status
Personalized nutrition and lifestyle guidance to support thyroid hormone balance
Investigation of related symptoms such as fatigue, digestive issues, mood changes, and metabolic health
Long-term partnership with a functional medicine care team
★★★★★
I was diagnosed with Hashimoto's and told 'take a pill for the rest of your life.' After years of hopping from doctor to doctor, I finally found Parsley — and I can finally say I have started feeling like my old self.
Tabatha D.
Your integrated care team
Each care team is led by a board-certified clinician with advanced training in root-cause medicine. They go deeper to identify and treat the root cause of health conditions.
Complete Care pricing & benefits
A year of consistent, coordinated care built for lasting improvements. Compare to typical functional medicine visits at $500-$1,000 per session.
$275/month
or $2,750 annually (2 months free)
12 month commitment required
Insurance coverage may be available for medical visits, depending on your plan, in NY, CA, WA, and OR. Membership covers access to your care team, coordination, and ongoing support. Medical visits are billed separately through insurance, just like care with any other medical provider.
5 in-depth medical visits with a functional health provider focused on root causes
2 functional nutrition coach visits to support lifestyle changes
5-person care team including a clinician, nutrition coach, care manager, clinical coordinator, and member advocate
A personalized care plan across nutrition, sleep, movement, and mental wellbeing
Advanced diagnostic testing access
Secure messaging support between visits
FSA/HSA eligible
$275/month
or $2,750 annually (2 months free)
5 in-depth medical visits with a functional health provider focused on root causes
2 functional nutrition coach visits to support lifestyle changes
5-person care team including a clinician, nutrition coach, care manager, clinical coordinator, and member advocate
A personalized care plan across nutrition, sleep, movement, and mental wellbeing
Advanced diagnostic testing access
Secure messaging support between visits
FSA/HSA eligible
12 month commitment required
Insurance coverage may be available for medical visits, depending on your plan, in NY, CA, WA, and OR. Membership covers access to your care team, coordination, and ongoing support. Medical visits are billed separately through insurance, just like care with any other medical provider.
Questions?
4 steps to get started
01
Choose your clinician
Sign up here and schedule your first visit with a board-certified clinician licensed in your state.
02
Complete pre-visit assessment
Spend about 30 minutes completing a comprehensive medical history, symptom assessment, and lifestyle review so your care team can come fully prepared.
03
Meet your care team
Work with your care team virtually or in-person. Start with an initial 60-minute visit with your clinician.
04
Get your plan
Start taking action on your personalized care plan towards better health, with support from your care team each step of the way.
member outcomes
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improved or eliminated symptoms in the first year
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improved mental wellbeing
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members served nationwide
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improved or eliminated symptoms in the first year
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improved mental wellbeing
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members served nationwide
member outcomes
Get more out of medicine than you ever thought possible
Progress you can see and feel
We use our proprietary, clinically-validated Parsley Symptom Index (PSI) to track progress in our care. Parsley members complete the PSI before their first visit and consistently over time establish a baseline of symptom severity and track clinical progress. Nearly 9 out of 10 members report symptom improvement within their first year of care.
Frequently Asked Questions
Parsley Health provides whole-body functional medicine care led by board-certified clinicians. We work with many people experiencing symptoms in this area, especially when symptoms are ongoing, complex, or have not improved with standard care. Care is personalized based on your health history, labs, and goals. If your symptoms have been difficult to resolve or fully explain, Parsley’s approach may be a good fit.
