Thyroid Health:
It's More Than Just a Lab Number
If you're dealing with fatigue, brain fog, cold sensitivity, weight changes, hair loss, mood swings, infertility, or high cholesterol—and your labs keep coming back “normal”—you’re not alone.
At Clark Wellness, we look beyond your TSH. Our root-cause approach uncovers what’s really affecting your thyroid by identifying hidden imbalances in conversion, gut microbiome health, nutrient cofactors, and autoimmunity.

Comprehensive Thyroid Panel
TSH, Free T3, Free T4, Reverse T3, TPO Antibodies, and Thyroglobulin Antibodies.
Why Conventional Thyroid Testing Leaves Patients Suffering
Standard medical care typically runs a single marker: TSH (Thyroid Stimulating Hormone). But TSH is a brain signal from the pituitary, not a direct measurement of active thyroid hormone inside your cells.
Poor T4 to T3 Conversion
Your thyroid produces inactive T4, which must convert to active Free T3 in the liver and gut. Stress, inflammation, or nutrient deficits block this conversion.
Elevated Reverse T3 (rT3)
When under chronic stress or trauma, your body converts T4 into rT3—a 'brake pedal' hormone that blocks cellular thyroid receptors.
Undiagnosed Autoimmunity (Hashimoto's)
Up to 90% of hypothyroidism is autoimmune (Hashimoto's), where immune antibodies attack thyroid tissue long before TSH goes out of range.
Nutrient Cofactor Deficiencies
Thyroid hormone production and conversion require optimal levels of Selenium, Zinc, Iodine, Iron/Ferritin, Vitamin D, and B vitamins.
Estrogen Dominance & Binding Globulins
High estrogen elevates Thyroid Binding Globulin (TBG), trapping free thyroid hormones and rendering them unavailable to your tissue.
Gut & Liver Dysfunction
20% of T4 to T3 conversion occurs in a healthy gut microbiome, while liver sluggishness restricts active hormone transport.
Conditions We Help Optimize
Whether you're already taking synthetic T4 (Levothyroxine/Synthroid) and still feel sluggish, or you're seeking a natural, root-cause strategy.
Hypothyroidism
Sluggish thyroid function causing low morning body temperature, dry skin, brittle nails, constipation, weight gain, and persistent exhaustion.
Hashimoto's Thyroiditis
Autoimmune attack on the thyroid gland. We focus on calming immune system reactivity, healing gut barrier permeability, and dampening antibody titers.
Subclinical Dysfunction
When your labs fall in the 'normal' standard deviation range, but well outside the optimal functional medicine window for high energy and cognitive vitality.
Our Root-Cause Thyroid Protocol
At Clark Wellness, Angelica Clark, PA-C, IFMCP, constructs an individualized roadmap restoring thyroid metabolic performance:
Full Biomarker Panel
Measuring TSH, Free T3, Free T4, Reverse T3, TPO & Tg Antibodies, and Ferritin.
Nutrient Optimization
Targeted supplementation
Gut & Inflammation Reset
Addressing intestinal permeability, food triggers (gluten/dairy antibodies), and SIBO.
Bioidentical Support
Evaluating combined T3/T4 therapies or Natural Desiccated Thyroid (NDT) when clinically indicated.
Stop settling for 'normal' labs when you feel terrible.
Book a discovery call to review your symptoms and test options.
Google Reviews
Stephanie Hofer
September 29, 2026
Functional medicine at its best! Angelica is extremely knowledgeable and digs for the root of the issues, not just temporary fixes. The extensive testing gave us clear answers we couldn't get anywhere else.
Parvitas
September 24, 2026
Just wanted to add my name to the growing list of extremely satisfied patients Angelica and staff have been able to treat over the years. Truly exceptional care, compassionate staff, and protocols that actually work.
Melissa Martinez
August 7, 2026
Love this process!!! Best health decision I have ever made.
A K
June 10, 2026
I so appreciate the expertise and care that Angelica Clark and the Clark Wellness Waco Team - Shaun and Savannah - have shown me over the past year after being dismissed by multiple doctors. They truly partner with you to be the best you.
Rachel Shaver
May 8, 2026
Anjelica is wonderful! She has helped me tremendously in a short amount of time with an autoimmune disease I suffer from. Her expertise in natural healing and functional testing is unmatched.
Rebecca Griffith
April 13, 2026
Incredibly knowledgeable and caring. I finally feel heard and have real answers after years of being dismissed by other clinics. The team is warm and truly supportive.
Wendy Varner
April 3, 2026
Angelica and her team are a blessing! They take the time to listen, explain every lab value in depth, and craft a plan that fits real life.
Jennifer Niemann
February 17, 2026
Such a great experience from beginning to end with life-changing results!!!! I feel like myself again for the first time in years.
Lisa Ray
February 9, 2026
Great people... Wonderful place! Thorough, professional, and genuinely caring healthcare that gets to the root cause.
Melody Hadden
February 6, 2026
I love Angelica and her team! I've lost 35lbs in 3 months so far and my energy levels are higher than they have been in a decade.
Riley Scroggins
November 14, 2025
Worth every penny! I felt seen and heard as a patient and loved that the goal was to get to the root cause and treat it as a whole. Incredibly kind and thorough.
Mary Ann Davison
November 12, 2025
Incredibly knowledgeable… helped pinpoint hormonal imbalances and nutrient deficiencies that traditional blood panels missed.
Pam Weldon
October 31, 2025
So thankful for Angelica's guidance and compassionate approach. She is always prepared and responsive.
Chase Sodolak
October 29, 2025
Great staff that genuinely care and take the time to get to know you on a personal level. Highly recommend to anyone searching for real wellness.
Ms. Lee Bock
October 25, 2025
I could not have asked for something better. They are my saving grace. Six months ago, I did not care if I lived or died. I had been to several other doctors with no answers. Angelica gave me my life back.
Leticia Anzaldua
October 22, 2025
After a year of visiting Angelica I feel like never before, now I know how to stay healthy and free from major diseases. I feel so blessed that I met Angelica and Savannah. They always make me feel at home.
Marie Weller
September 18, 2025
Great staff, Angelica is very professional, caring, and knowledgeable as is her staff also.
Jennifer Garner
September 16, 2025
Best healthcare I have ever received. Think of it. A physician that actually listens to the patient!
