Thyro ADK: Thyroid Hormone Sensitivity Blend (Combo A, D & K2)

Thyro ADK: Thyroid Hormone Sensitivity Formula | Vitamin A, D & K2 in Organic Olive Oil Base (90 Servings)


Help your thyroid work smarter not harder by improving thyroid cellular sensitivity. Thyro ADK features fat-soluble vitamins in an organic extra virgin olive oil base. Each serving provides you with 2,500 IU of vitamin D3, 2,000 mcg of vitamin A as retinyl palmitate, and 3mg of Vitamin K2 as MK4 with one purpose in mind: to help your cells more effectively use thyroid hormone.

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Manufactured in The USA

Third-party tested for purity

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Frequently Bought Together

thyro ADK 1500x1500 front bottle image + hashimoto's ab rx front bottle image 1500 x 1500 ingredient list + thyroid daily essentials front bottle image 1500 x 1500
Price for all three: $134.92


How Thyroid Resistance Impacts Thyroid Function

As a thyroid patient, if you are looking to feel better, control your thyroid, manage your weight, and improve your hair then you know you need to optimize your thyroid.

And optimizing your thyroid is so much more than just taking some thyroid medication and calling it a day.

Optimizing your thyroid means ensuring that these three steps work seamlessly:

  • Thyroid hormone production: This refers to how much thyroid hormone your thyroid gland produces or how much thyroid medication you take by mouth.
  • Thyroid hormone conversion: This refers to your body’s ability to convert thyroid hormones correctly, starting with T4 all the way down to T1.
  • Thyroid hormone cellular activation: This refers to how sensitive your cells are to the thyroid hormone that you are producing and converting.

Each step is important but none is more neglected than the last: thyroid hormone cellular activation.

You can be doing everything right but if you forget this last step then it’s all for naught.


Because no matter how much thyroid hormone is produced by your thyroid gland or converted by your liver or gut, it doesn’t matter if your cells are unable to properly use it.

The assumption is made by doctors and thyroid patients that as long as you have enough thyroid hormone in the body it will do its job and everything will work out fine.

That’s certainly not the case, at least not for everyone.

The good news is that there are things you can do, and take, to help support how well your cells are communicating with thyroid hormone.

Thyro ADK is designed to do just that.

Fat-soluble vitamins like vitamin D and vitamin A are involved in this cellular communication process.

They help thyroid hormone work more effectively so it can make it into the nucleus of your cells to work on genetic transcription and help your body produce the enzymes and proteins it needs.

Key Ingredients

  • Vitamin D3: Thyroid patients have a big problem with vitamin d deficiency for 2 reasons. The first is due to poor absorption and the second is from decreased activation. Vitamin D has been added to Thyro ADK as the most active form, cholecalciferol. Vitamin D supplementation in thyroid patients has been shown to positively impact TSH levels as well as calcium levels. It’s also been shown in some studies to help lower thyroid antibodies, balance immune function, reduce depression, and impact thyroid hormone sensitivity. Animal studies have shown that D3 supplements may alter deiodinase type 2 expression which is responsible for the creation of T3 thyroid hormone. No matter how you look at it, optimizing vitamin D levels is a great tool for improving thyroid health.
  • Vitamin A: Vitamin A is a fat-soluble vitamin that is important for thyroid cellular function. Vitamin A helps regulate your thyroid at multiple levels including impacting pituitary TSH secretion, iodine uptake, liver conversion of T4 to T3, thyroid transport proteins in the bloodstream, tissue uptake of T3, immune health, and gut health. Vitamin A supplementation in humans has been shown to improve TSH levels, reduce thyroid size/volume, help prevent goiter, and improve thyroid function more generally.
  • Vitamin K2: Vitamin K2 is an important regulator of calcium which works in conjunction with vitamin D to shuttle calcium to the correct locations in your body. Thyroid patients are at increased risk for high cholesterol as well as osteoporosis due to hypothyroidism, which means calcium regulation is very important for this group of people. Vitamin K2 is included as MK-4 to support these systems and enhance the effectiveness of vitamin D.
  • Organic extra virgin olive oil base: All of these fat-soluble ingredients are blended together perfectly in a healthy carrier: organic extra virgin olive oil. This ensures the stability of the active ingredients, improves the taste of the supplement, and won’t cause issues with your diet.

The Complete Ingredient List: Each Serving Contains

  • Vitamin A (as retinyl palmitate) 2,000 mcg RAE (220%)
  • Vitamin D3 (as cholecalciferol) 62.5mcg or 2,500 IU
  • Vitamin K2 (as MK4) 3mg
Dr. Westin Childs Thyroid ADK supplement facts panel

Other ingredients: Organic extra virgin olive oil.

Directions: Shake well before using. Take 12 drops by mouth each day with a fatty meal.

Storage: Keep closed in a cool, dry place out of reach of children. Refrigeration is not necessary.

Does not contain: Wheat, gluten, dairy, soy, GMOs, or yeast.

Frequently Asked Questions

Thyro ADK provides your body with fat-soluble vitamins that are necessary for healthy thyroid cellular function.

Deficiencies are felt to be very common in hypothyroid patients of vitamin A, D, and K2 due to the impact the thyroid has on the absorption and utilization of these nutrients.

Vitamin D deficiency impacts over 1 billion people worldwide and is likely more common among hypothyroid patients due to the impact low thyroid function has on gut health and stomach acid.

Vitamin A deficiency isn’t as common in developed countries but a combination of iodine deficiency (which is becoming more common in developed countries) along with sub-optimal vitamin A levels can negatively impact thyroid function.

Due to decreased conversion of vitamin K1 to vitamin K2, many hypothyroid patients are likely getting insufficient amounts of this important hormone vitamin.

Thyro ADK features all three of these vitamins in an organic olive oil base designed to help replace these levels to support healthy thyroid cellular function.

The bottom line? The more active your cells are to thyroid hormone, the better you will feel.

For best results, shake well prior to using and apply 12 drops by mouth with a fatty meal (breakfast works!) each day.

There’s no need to refrigerate Thyro ADK for storage purposes.

If you do place it in the refrigerator, please note that the contents may turn into a solid much like coconut oil turns into a solid when it’s cold.

If that happens, all you need to do is put it out at room temperature for about 20-30 minutes and it will return to a liquid.

It is not necessary to take Thyro ADK with a meal but we do recommend it for better absorption.

Thyroid cellular sensitivity is just a way to describe how receptive your cells are to thyroid hormone.

We know that there are both acquired and genetic thyroid resistance syndromes that can impact how well thyroid patients respond to thyroid medications and thyroid hormones produced from their own thyroid gland.

These resistance syndromes are very similar to those seen with other hormones such as insulin resistance, progesterone resistance, leptin resistance, and cortisol resistance.

What this means for you is that you may have adequate thyroid hormone floating around in your bloodstream but your cells may not be able to properly utilize that hormone.

For all intents and purposes, this makes your cells think you are in a hypothyroid state.

If your cells are unable to utilize thyroid hormone then you will not experience the benefits of thyroid medication or optimizing your own thyroid gland.

Physiologically speaking, your body requires the use of certain vitamins to help your cells use thyroid hormone.

Thyro ADK works on the premise that providing your body with these vitamins may help your cells better communicate with thyroid hormones and improve these thyroid resistance syndromes.

The study of thyroid resistance is limited, however, so right now we are working primarily with our understanding of physiology and thyroid patient experience.

The general experience among many thyroid patients is that taking fat-soluble vitamins like ADK can help reduce thyroid symptoms.

For more understanding as to how this process may work at the cellular level, please see the references at the end of the page.

If you are using 12 drops per day (the recommended serving size), the bottle will last 90 days or about 3 months.

Each serving (12 drops) contains 62.5mcg or 2,500 IU of vitamin D3.

Like all of my supplements, Thyro ADK can be used with all thyroid medications but just be sure to use it at least 30-60 minutes away from whenever you take your thyroid medication.

This will ensure that the ingredients do not cause any issues with the absorption of your thyroid medication.

Most people take Thyro ADK in the morning but it can be taken at any time of the day.

For as long as you feel that it is helping! It can safely be used indefinitely.

Some thyroid patients will want to use it long-term as a continual source of fat-soluble vitamins that can be difficult to obtain from their diet.

Other thyroid patients may find the benefit of using it temporarily for a few months to replace low levels while they optimize their diet and get back on track.

The vitamin D3 in Thyro ADK is sourced from lanolin which means it is not a vegan supplement.

Thyroid function is slow to respond when compared to other hormone systems in the body.

It takes 6 weeks of daily use of any thyroid hormone or thyroid support supplement before your body will reach a steady state which means it will take this long before it completely enters your system.

It’s usually around this time that you will start to see changes in how you are feeling but I recommend using any thyroid support supplement or medication for at least 90 days before determining whether or not it’s working for you.

Thyro ADK is very well tolerated and should not cause any negative side effects.

Yes! Thyro ADK can be used with all thyroid conditions including hyperthyroidism.

The use of Thyro ADK will not make your hyperthyroidism worse.

In fact, many studies have shown that taking vitamin D3 may help improve thyroid autoimmune diseases like Hashimoto’s and Graves’ disease.

It is gluten-free and it doesn’t contain any inactive fillers or binders!

The only other ingredient aside from the main ingredients is organic extra virgin olive oil.

All domestic orders receive free shipping regardless of price. Orders are typically processed within 1 business day, they are shipped out via USPS Ground Advantage and typically arrive within 1-3 business days.

We also offer intentional shipping to most countries as well! International orders ship free if the order value is greater than $250 USD. Otherwise, the price of shipping is calculated on the checkout page. We primarily use USPS for international shipments.

All of my products come with a 60-day money-back guarantee. I’m confident that my products will work for you but, in case they don’t, for whatever reason, you can return them for a full refund within 60 days. It makes purchasing them a no-brainer!

You can find more information about our return and refund policy by clicking here.

Yep! Every single batch of supplements undergoes third-party testing for heavy metals, pathogens, ingredient profile, and purity. In addition, my products are produced in a GMP-compliant facility in the United States.

Don’t hesitate to reach out! Please email us at and we will do our best to get back to you within a day or so! You can also call us here: (480) 331-9431.

Questions about our quality standards? Please see this article for more information.

Scientific References

#1. The Effects of Vitamin D Supplementation on Thyroid Function in Hypothyroid Patients: A Randomized, Double-blind, Placebo-controlled Trial:

#2. Effect of vitamin D3 on thyroid function and de-iodinase 2 expression in diabetic rats:

#3. Vitamin D supplementation reduces thyroid peroxidase antibody levels in patients with autoimmune thyroid disease: An open-labeled randomized controlled trial:

#4. The relationship between thyroid disorders and vitamin A.: A narrative minireview:

#5. The effect of vitamin A supplementation on thyroid function in premenopausal women:

#6. Association between vitamin D deficiency and hypothyroidism: results from the National Health and Nutrition Examination Survey (NHANES) 2007-2012:

#7. Effect of low dose vitamin K2 (MK-4) supplementation on bio-indices in postmenopausal Japanese women:

#8. Structural Insights into Phylloquinone (Vitamin K1), Menaquinone (MK4, MK7), and Menadione (Vitamin K3) Binding to VKORC1:

Additional information

Weight 0.25 lbs
Dimensions 1.25 × 1.25 × 4 in

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

**Results may vary.

Customer Reviews

Based on 41 reviews
Hyper Thyroid Supplement Package, Positive Results

So far I've taken 2 rounds of the hyper thyroid 30 day supplement package.
First lab after 30 days showed improvement in all levels.
Second lab after 3 months now shows normal in all levels.
Another improvement I didn't realize during the regement was abcents of heartburn. I didn't reorder the package to wait for next lab and see if improved levels would remain stable.
It's been about a month without taking these supplements and heartburn has returned.
The hyper thyroid supplement package works for me, however this package does not provide sufficient quantities to last the full regement. You will run out of some items before others loosing the benefit of a "complete package". It's expensive reordering individual items to fill the shortages. Would be nice to receive quantities that run out at the same time.

Marilyn I.
Thyroid Hormone Sensitivity Formula/Vitamin A, D & K2

I was happy to find this formula because it can be hard to find vitamin K2 combined with other vitamins that I need. The taste of the drops is a little bitter (needs a chaser), but I think the results override that.

Adrienne C.
Thyroid Hormone Sensitivity Formula | Vitamin A, D & K2 in Organic Olive Oil Base

I love it! My thyroid is responding to this treatment. Gut function is restored and skin , hair and nails are strong and hair is growing and skin is smooth.

Ryan H.
You’re going to love the way you feel.

I’m about a month into taking the Thyroidectomy bundle and I’m starting to get back to my old self before my Thyroid was removed.

1× Thyroid ADK

I have used Dr. Childs Thyroid products before and they have worked very well for me. I'm excited to see how this new revised version continues working for me and to continue my improvement So far, I'm very pleased. Thank you Dr. Childs you're a God send to so many of us! God Bless

thyro ADK 1500x1500 front bottle image
Thyro ADK: Thyroid Hormone Sensitivity Formula | Vitamin A, D & K2 in Organic Olive Oil Base (90 Servings)
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