Meet The Thyroid (Thyroid School #1)

Let’s face it. There is NO shortage of information out there. Heck, you could just ChatGPT “how to eat for my thyroid” and get some ideas, but that is probably just adding to your paralysis by analysis because, wowza, there is so much conflicting advice. Let’s cut through the noise and take it back to the basics. To keep you from wading through information overload, let’s boil it down to brass tacks and rebuild a sturdy foundation for understanding this small-but-mighty gland—and why it sometimes goes haywire.
🎥 Here is a video reviewing the information I detail below 🎥

Meet the Thyroid!

Ah, the thyroid! This butterfly-shaped marvel, nestled at the base of your neck, is responsible for producing hormones that dictate how your body functions. From regulating your metabolism to influencing your mood, this gland has a hand in almost everything.

Meet Your Thyroid: The Master Multitasker 👑

Your thyroid is like the CEO of your body’s operations, ensuring every department runs smoothly. Here’s what it manages:

  • Metabolism Management: Determines how your body converts food into energy. A sluggish thyroid slows this process, making weight loss feel impossible, while an overactive thyroid can leave you feeling jittery and drained.
  • Sleep/Wake Cycles: Regulates energy levels and helps you wake up feeling refreshed—or, in the case of dysfunction, perpetually groggy.
  • Hormonal Harmony: Influences sex hormones like estrogen and progesterone, impacting fertility, libido, and PMS symptoms.
  • Heart and Muscle Function: Controls heart rate and muscle contractions, ensuring your heart beats efficiently and muscles function properly.
  • Menstrual Cycle Regulation: Affects the regularity and intensity of your periods. Imbalances can cause irregular or heavy periods—or even stop them altogether.
  • Body Temperature Control: Keeps you from feeling too hot or too cold by regulating your internal thermostat.
  • Immune System Regulation: Plays a role in immune function, which is why thyroid dysfunction often coexists with autoimmune conditions like Hashimoto’s.

With so much on its plate, even a small hiccup can create a ripple effect across your entire body. Fun fact: thyroid hormones—specifically T3—are the only hormones that influence every single cell in your body. That’s right: your thyroid literally touches everything.

Back to Basics: How Does the Thyroid Do Its Thing? 🧪

Think of your thyroid as a highly skilled chef preparing a vital recipe for life. Here’s the process:

  • The Ingredients: Your thyroid uses iodine and tyrosine (an amino acid found in protein-rich foods).
  • The Recipe: It combines these to produce thyroid hormones, primarily T4 (thyroxine) and T3 (triiodothyronine).
    • T4 is the storage form, like a pantry stocked with ingredients.
    • T3 is the active form, ready to be used immediately by your body.
  • Activation Station: Most T4 needs to be converted into T3 to be useful. This conversion happens in your liver, gut, and other tissues. If these systems aren’t functioning optimally, your thyroid hormones can’t do their job.

Thyroid hormones influence everything from cellular energy production to gene expression—literally dictating how your cells function… forever! It’s kinda a big deal!

Why So Temperamental? 🌩️

Thyroid dysfunction is surprisingly common, and here’s why:

  • Nutrient Deficiencies: Key nutrients like iodine, selenium, copper, magnesium, potassium, Vitamin A, zinc, and iron are essential for thyroid function. Deficiencies can impair hormone production or conversion.
  • Chronic Stress: High cortisol levels from stress can suppress thyroid function, reduce T4-to-T3 conversion, and disrupt the hypothalamic-pituitary-thyroid (HPT) axis.
  • Inflammation and Gut Health: Chronic inflammation and imbalanced gut microbiota can interfere with hormone conversion and increase the risk of autoimmune thyroid diseases.
  • Environmental Toxins: Chemicals like BPA, heavy metals, and pesticides can disrupt thyroid hormone production and mimic hormones, throwing the system off balance.
  • Autoimmunity: Conditions like Hashimoto’s thyroiditis (hypothyroidism) are caused by the immune system attacking the thyroid.

Cutting Through the Noise

In today’s world, there’s no shortage of thyroid advice—some good, some questionable, and some downright overwhelming. To truly support your thyroid, it’s crucial to take it back to basics: focus on nutrient-dense foods, manage stress, and understand how your thyroid works at its core. When you rebuild a strong foundation, you can navigate the sea of information with clarity and confidence.

Meet Nicole Fennel Functional Dietitian

Hey There, I'm Nicole!

I'm Nicole, Integrative & Functional Registered Dietitian Nutritionist — and a Hashimoto's patient and busy momma of three who has been in your shoes. I spent years trying to figure out why I felt so off despite doing all the "right" things, and that experience completely shaped the way I work with women today.

My whole approach is built around nourishing your body with real food you actually want to eat, not white-knuckling your way through a six-week protocol that leaves you more exhausted and more confused than when you started. Because restriction doesn't heal anything. Real, sustainable nourishment does.

I'm a college professor and educator at heart— I teach a range of classes from freshman level "Introduction to Nutrition" and graduate-level Women's Health and Nutrition courses, and that passion for making complex science click in plain English is woven into everything I do. If you leave a session without actually understanding why we're doing what we're doing, we haven't done our job.

I love going on long walks while listening to an audiobook (my FAVORITE is The Count of Monte Cristo, but I'm currently reading Lord of the Rings), being totally outnumbered with my three wild kiddos, eating yummy food, sipping a good cup of coffee, and (trying) to crochet!
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Whether you're running on fumes no matter how much you sleep, trying to make sense of a Hashimoto's or thyroid diagnosis, dealing with periods that knock you completely sideways, navigating PCOS, struggling with cholesterol or blood sugar that won't cooperate, or carrying weight that refuses to budge no matter what you try — please know you are not alone. And more importantly, there is an actual reason you feel this way.
At Chews Food Wisely, we're not here to hand you a meal plan and wish you luck. We're here to look at your full picture — your labs, your symptoms, your life — and find the connections that explain why your body has been doing what it's been doing. Then we build you back up with real food, realistic strategies, and a plan that fits your actual life. Not a protocol designed for someone else's body.

Let’s fix those hormone imbalances that are making you feel crummy!

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