Our Functional Thyroid Fix: A proven roadmap to reclaim your energy, lift the brain fog, and lose the weight that just won’t budge.
Address your Hashimoto’s with a functional approach -without guesswork or overwhelm. If you're tired of battling fatigue, brain fog, anxiety, or stubborn weight gain, you're not alone, and there is a path forward. Our 16-week program is designed specifically for women with Hashimoto’s and hypothyroid symptoms who are ready for answers, a proven plan, and real results. We’ll address the root causes of your thyroid dysfunction using a data-driven, personalized approach so you can finally feel energized, clear-headed, and confident in your body again.
We’ve got you.
Have you been told that Hashimoto’s is incurable and that lifelong thyroid medication is your only option? Are your labs "normal” but you still feel exhausted, foggy and inflamed? This doesn’t have to be your new normal.
If you’re searching for natural, sustainable ways to restore your energy, and reduce the chronic inflammation, fatigue, and brain fog that come with Hashimoto’s, you’re in the right place. Britesquare’s comprehensive approach is designed specifically for women who are tired of chasing symptoms and ready to address the root causes behind them.
With our four-part framework, functional lab testing, and high-touch 1:1 coaching, you’ll finally have a personalized roadmap that helps you reclaim your life. Clear guidance, no confusion. Just science-backed, sustainable change -tailored to you.
Schedule your free 25min discovery call today and take the first step toward feeling like yourself again.
This is for you if you’ve tried everything but still…
What life looks like now:
You feel tired all the time, even after a full night’s sleep -like you’re running on empty. Coffee barely touches the exhaustion.
You can’t lose weight even when you’re careful with food and exercise. Nothing seems to move the needle.
Your hair thins and sheds. Your skin is dry and rough. You don’t feel like you when you see the changes in the mirror.
It’s hard to focus or remember things, and simple tasks take so much effort. Your to-do list feels overwhelming.
Moods swing without reason. One moment you’re fine, the next you’re snapping or in tears. Anxiety creeps in, even when life is going well.
You don’t feel like yourself anymore, and you can’t explain why. You miss the vibrant, capable woman you used to be.
What life could look like:
You wake up refreshed. Mornings feel calm instead of chaotic, and you have energy to start your day with intention -not just caffeine.
Your weight naturally finds balance, and food feels nourishing again. You finally understand what works for your body.
Your hair grows back stronger, your skin is glowing, and you feel like you look like yourself again.
Your mind is clear and sharp. You keep up with conversations with ease, and no more forgetting where you put your keys.
Your moods are steady, and there’s space again for joy, calm, and laughter. You’re more patient with your kids and more connected to your partner.
You feel like yourself again -vibrant, confident, and full of life. You have the energy to show up for your family, your dreams, and for yourself.
Your body is designed to heal.
If you’ve been diagnosed with Hashimoto’s, you may feel frustrated and overwhelmed. The conventional medical system excels at acute care but often falls short with chronic conditions like Hashimoto’s. In fact, most doctors report inadequate training in chronic disease management. Hashimoto’s is typically treated with thyroid hormone like levothyroxine, yet many women still struggle with fatigue, hair loss, brain fog, depression, anxiety, constipation, and weight gain. That’s because Hashimoto’s isn’t just a thyroid issue -it’s an immune system disorder (the thyroid is simply the target). When we focus only on medication, labs may look “normal,” but the immune dysfunction and inflammation persist -which is why so many women still feel awful. This also explains why 1 in 4 women with Hashimoto’s develop other autoimmune conditions like celiac, rheumatoid arthritis, or type 1 diabetes. When we address the immune system directly, symptoms improve -and you can finally start to feel better.
From surviving to thriving: A new approach to Hashimoto’s
What makes Britesquare’s approach different and more effective? Here’s a side-by-side look at two very different ways to address your Hashimoto’s condition, and see how a new model of care offers better results and long-term relief.
Managing symptoms:
15-minute doctor visits, or one-off consultations.
Focus on managing or suppressing symptoms.
One-size-fits-all medication.
Hashimoto’s seen as a thyroid problem.
Normal TSH and labs, but still feel unwell.
Dismissal of "non-severe" symptoms.
Reactive care.
Creating lasting change:
Ongoing, personalized support and coaching.
Focus on addressing root causes and system balance.
Customized protocols based on your body and labs.
Hashimoto’s understood as an immune system imbalance.
Look at full thyroid panel + immune picture.
Every symptom is a clue and opportunity.
Proactive, transformational journey to reclaim energy and vitality.
If you're ready to feel like yourself again -book your free discovery call today.
The Functional Thyroid Fix is for the woman who’s done “all the right things” but still doesn’t feel right.
Stop guessing, Googling, or trying random strategies and start following a structured, phased approach that actually works for Hashimoto’s. We believe that Hashimoto’s isn’t just about managing symptoms — it’s about uncovering and resolving the imbalances that caused them in the first place. Most women with Hashimoto’s have tried various diets, supplements, generic protocols, or prescriptions that only scratch the surface. Britesquare’s approach goes deeper, combining advanced functional lab testing with a proven four-part framework to identify and address the unique interplay between nutrition, gut health, mindset, toxins, and immune regulation. This program meets you where others haven’t — and guides you toward true, lasting change.
Britesquare’s Functional Thyroid Fix is a high-touch, expert 1:1 coaching experience, with personalized nutrition and supplement protocols based on data revealed by cutting-edge functional labs including the Genova Stress Test, the GI-MAP, and Alletess food sensitivity test. We track your progress, make strategic adjustments, and help you build sustainable habits that support long-term resilience. When you calm the immune system, reduce chronic inflammation, and support the whole body, everything changes -not just your labs, but your energy, clarity, and sense of self. This is your new path forward -and it’s one that works.
Our comprehensive four-part framework explores the many factors that affect autoimmune conditions, like Hashimoto’s Thyroiditis.
Diet & Nutrients
We know our immune system responds to the foods we eat, this is proven by research that shows that a nutrient-dense diet is one of the most powerful treatments for autoimmune disease. Consuming fewer inflammatory foods, adding immune-supporting nutrients, and removing food sensitivities will help build a stronger, more resilient body and balanced immune response.
Gut Microbiome & Leaky Gut
We believe that addressing gut health is a crucial part of any Hashimoto’s program. Mounting evidence shows that poor gut health is a feature in virtually all autoimmune conditions, and that by balancing the microbiome, healing leaky gut, and addressing chronic gut infections like H. Pylori and parasites, we can prevent, and even reverse, autoimmune conditions.
Environmental & Dietary Toxicities
We are all overexposed to chemicals. Environmental toxins are significant risk factors in the development of autoimmune disease. They impair the immune system, disrupt detoxification, promote inflammation and damage mitochondria and gut bacteria. By detoxifying our body, diet, skincare products and living space we can optimize our body's detoxification system and balance the immune system.
Mindset & Lifestyle
We consider the mental and emotional elements of the individual as integral to immune health. The connection between stress and immune function has been documented for over a century and is an established risk factor for autoimmune disease. By improving mindset, and prioritizing sleep, movement, and stress management, our autoimmune clients go from surviving to thriving.
What’s included in your 16-week program:
Personalized Expert Support
Tailored guidance and real partnership — so you’re never left guessing.
1:1 High-Touch Coaching
You’ll be supported every step of the way by a functional health expert who truly understands Hashimoto’s.
1 x Initial 80-Minute Deep Dive Consultation
We take time to fully understand your history, symptoms, and goals — to uncover what your body’s trying to tell you.
1 × 80-Minute Lab Review Session
Clear, targeted protocols based on your lab results — no more guessing what’s going on.
6× 50-Minute Follow-Ups
We stay connected to monitor progress, answer questions, and adjust your plan as needed.
Unlimited Messaging Support (Mon–Thurs)
Ongoing accountability and quick answers — because questions come up between sessions, too.
Advanced Testing & Functional Lab Interpretation
Finally, data that explains what you’ve been feeling — and what to do next.
Comprehensive Blood Chemistry Analysis
Including CBC, CMP, TSH + thyroid panel, glucose, insulin, iron, inflammation markers, vitamin D, and more.
Interpretation + Protocols for:
▸ DUTCH Complete Hormone Test
▸ GI-MAP Gut Health Test
▸ Food Sensitivity Test
Personalized Supplement & Lifestyle Recommendations based on your unique biology — so your plan fits you, not the average client.
Nutrition, Lifestyle and Progress Tools
Sustainable shifts, made simple — with support at every step.
4-Month Nutrition & Lifestyle Framework
A step-by-step approach to supporting thyroid, gut, and immune health — without overwhelm.
Food Tracking System
See what’s working (and what’s not) with a simple tool to monitor your progress.
Allergen-Free, Pharmaceutical-Grade Supplements
Get access to trusted brands at a discount — no fillers, no guesswork.
Worksheets, Guides & Handouts
Practical tools to help you implement changes confidently.
Ongoing Accountability & Emotional Support
You’re not doing this alone — we’re here to help you stay on track and feel empowered throughout.
Is our program right for you?
Before we begin this transformational journey together, it’s important to make sure we’re the right fit. This program is designed for women who are fully committed to addressing the root causes of their Hashimoto’s condition.
✅ This Is for You If...
You believe your body can heal — you’re curious, open-minded and ready to uncover why you’re unwell.
You’re committed to doing the work: physically, emotionally, and mentally.
You’re ready to invest time, energy, and resources into your health.
You’re open to changing your habits, lifestyle, and nutrition.
You value a personalized, root-cause approach that looks at your whole body, history and lifestyle.
You’re willing to explore the emotional and mindset aspects of Hashimoto’s.
You're done outsourcing your health. You’re ready to be empowered, take responsibility, and be your own best advocate.
❌ This Is Not for You If...
You’re looking for a quick fix or “magic” pill. Healing Hashimoto’s takes time, consistency, and commitment.
You’re not willing to invest in yourself or your health. If you're not prepared to dedicate time, energy, and financial resources to your healing, this program won’t serve you.
You’re skeptical of a functional, root-cause approach. If you’re not open to exploring this path, results will be limited.
You’re resistant to making real lifestyle or mindset changes.
You expect someone else to “fix” you without personal effort. If you’re not ready to take ownership of your process, this work won’t stick.
You want a one-size-fits-all protocol, not a customized, adaptive process that evolves as you do.
If you're ready to feel like yourself again -book your free discovery call today.
Clients success stories:
I am beyond grateful for meeting Kim. Her exceptional support and guidance are the reason I have reversed Hashimoto’s autoimmune disease, it is possible! I no longer have joint pain, muscle aches, migraines, anxiety or brain fog. I am calmer, sleep better and my digestion has improved. When I first met Kim, I was overwhelmed and facing a series of health concerns. Her intuitive sense and compassionate approach immediately put me at ease. Kim’s passion for learning directly benefits all of her clients. She is incredibly knowledgeable about the most current research and can solve so many complex puzzle pieces to achieve optimum health. She is beyond dedicated to her clients, and it made a significant difference in my healing journey.
-L.A.
Kim, our visit today was great. I have lost 15 pounds! I continually feel the “best” each time I leave your office. There is something very special that happens that I just can’t put into words. I thank you for helping me get to where I am. You are truly such a beautiful, warm young woman! The information and support you have given me has changed my life. It is so different than any other program I have ever been a part of. Thank you from the bottom of my heart!
-K.W.
Most recently I worked with Kim after being diagnosed with Hashimoto’s Hypothyroidism. My symptoms were severe. Kim helped me put my Hashimoto’s into remission and completely eliminate my thyroid antibodies. My inflammation has been reduced to the point that I no longer need to take the strong immune-suppressing medication that I have been reliant on the last four years. I feel so much better day to day, and confident in the knowledge that I am continuing to take the right steps to decrease my risk of chronic disease. Thank you Kim, I’m so grateful for your guidance and support!
-J.L.N
A Hashimoto’s Thyroiditis Case Study
Are you curious to see what this process really looks like? Read a full case study showing how one client transformed her health in just a few months.
Free 25-minute Accelerator Consultation
Invest in your health.
More client feedback.
About Britesquare
Health can be complicated and overwhelming. Kim Kroonenburg created Britesquare to demystify that complexity. As a functional nutrition health coach with over 20 years of industry experience, and based on her work helping countless clients get results, Kim founded Britesquare to offer her clients a simple, yet powerful, four-part framework for achieving optimal wellness.
Certified in Nutritional Medicine through the American University of Complimentary Medicine, Kim is also an honors university graduate. Kim is trained in the use of nutrition and high-quality supplements as powerful tools for attaining health and vitality. But achieving health goals is more than a list of recommendations, it requires dedication and support during the client’s transformation. Kim recognizes this need and is also a Certified Integrative Health Coach through the Institute for Integrative Nutrition where she trained in supporting behavior change, and in how to consider other aspects of her clients’ lives including mental and emotional elements.
Kim is constantly deepening her knowledge by taking new courses taught by world-renown functional medicine clinicians such as Dr. Aviva Romm, Dr. Elisa Song and Chris Kresser M.S. Kim has studied with acclaimed nutritional biochemist Dr. Libby Weaver, and has studied adrenals with Dr. Peter Kan through the Neurometabolic Academy. Kim is also certified in Therapeutic Diets for Gut Health with Julie Matthews, MS, NC . Kim is passionate about functional lab testing and has trained with Dr. Cheryl Burdette, Dr. Carrie Jones, Julie Davey RN, MSN, Dr. Erik Lundquist, Dr. Chris Magryta and Dr. Jacquel Patterson.
Currently in private practice in the Northeast US, Kim’s specialties include gut health, hormones, and autoimmune conditions, especially Hashimoto’s. Kim’s interest in autoimmunity has compelled her to take additional coursework including the “Healing Autoimmunity Naturally with Functional Medicine” training with Chris Kresser M.S. L.Ac., the “Autoimmune Protocol (AIP)” training with Dr. Sarah Ballentyne, as well as Harvard-trained Dr. Akil Palanisamy’s course “The Tiger Protocol and Autoimmunity: Toxins, Gut Health and Stress.” She also learned specifically about the functional approach to Hashimoto’s through Dr. Izabella Wentz’s (the Thyroid Pharmacist) Hashimoto’s program. She believes that by improving the health of the individual we can make the world a brighter place.
Contact
If you have any questions about Britesquare in general, or our coaching approach in particular, please send us a message. We look forward to hearing from you.