As a Naturopath I believe taking supplements is one of the easiest things you can do to naturally support healthy thyroid function. You may even discover the right supplements make a noticeable difference to how you feel, even put an end to the frustrating symptoms of hypothyroidism.

But the problem is knowing what is right for you.

If you’re feeling overwhelmed, and confused you’re not alone! The dietary supplement market is daunting…there is just so much to choose from.

So before you try something new here are a few quick go-to tips to consider.

Check These Expert-Approved Tips To Finding the Best Thyroid Supplements

1. The Best Supplements Supply A Range of Thyroid-Supporting Nutrients.

Not all thyroid supplements are created equal. The best natural thyroid remedies contain specific nutrients that are beneficial for hypothyroidism.

Let’s take a closer look at iodine, zinc, selenium, and B-vitamins.


I can’t stress enough the importance of making sure you are getting enough of this mineral. The body cannot produce iodine on its own so this trace mineral must be sourced from the diet, or a supplement to achieve optimal levels.

Iodine is needed to make thyroid hormones. When the thyroid doesn’t get enough iodine it is forced to work harder. Deficiencies can lead to iodine induced hypothyroidism, and enlargement of the thyroid.

There is a ‘sweet spot’ when it comes to taking iodine as you rarely need mega amounts. So it’s about getting the balance right between too much, and too little. Around 150 micrograms daily from dietary, or supplementary sources is generally considered safe. Be cautious when a label states milligram, not microgram quantities of iodine.

Zinc and Selenium

Zinc and selenium are integral to thyroid function and are therefore often featured in thyroid supplements. These versatile minerals team up to support conversion of thyroxine (T4) to triiodothyronine (T3). When working well this biochemical pathway helps maintain optimal free T3 levels. This can make a real difference to how you feel.

Furthermore, studies show selenium is beneficial in reducing raised thyroid antibodies. In these studies, women with a diagnosed autoimmune thyroid disorder were given 200 to 250 micrograms of selenium per day. Over time they saw a marked reduction in their thyroid peroxidase (TPO) antibody levels.,


The B-vitamins play a central role in many biochemical processes, including methylation which is a core pathway that supports proper thyroid function.

When there is lowered intake of specific B-vitamins this life-sustaining pathway stops working as it should. Poor methylation leads to fatigue, mood changes, food allergies, lowered immunity, a build-up of toxic heavy metals, and other health changes.

Supporting Nutrients

You may also want to consider topping up on single nutrients such as magnesium, probiotics, essential fats, vitamin A, vitamin C, iron, and D3 if testing shows low levels.

2. Look For Copper-FREE Supplements.

You’ve probably seen copper-FREE supplements promoted online.

The reason?

It’s rare to be deficient in copper. We get more than enough copper from drinking water, and dietary sources. So essentially taking copper is often unnecessary, even downright risky as this trace element easily builds up. When copper builds up the body has trouble clearing the surplus.

Copper overload is common, especially for women as estrogen, the oral contraceptive pill, and hormone replacement therapy (HRT) increase retention. Intrauterine contraceptive devices (IUCD) containing copper also contribute to systemic copper overload.

You may also want to avoid copper because it blocks zinc. Science tells us these two minerals are natural antagonists. So, when copper goes up, zinc goes down. And that’s not what you want when you have hypothyroidism…zinc is one mineral you need working properly.

Zinc supports activation of T4 to T3. And not only that, zinc aids wound healing, is required for proper taste and smell reception, and this ‘beauty mineral’ contributes to the maintenance of healthy hair, skin and nails.

Check It’s Manufactured According to Current Good Manufacturing Practice (cGMP)

You want to know that your supplements are manufactured in approved facilities according to strict standards set by the code of current Good Manufacturing Practice (cGMP).

The US Food and Drug Administration (FDA) established these good manufacturing practices (GMPs) to ensure consumers get consistently high-quality dietary supplements that deliver exactly what’s stated on the label.

In Summary

Let’s face it, it’s not always easy to eat well 100% of the time. When taken as recommended top quality nutritional supplements are an important addition to a healthy diet, and are incredibly useful to fill any potential vitamin and mineral gaps.

I do hope my expert tips will make it easier to find the best supplements to naturally support healthy thyroid function.

And finally please bear in mind, achieving optimum thyroid health is no easy task so it’s wise to consult your healthcare practitioner before trying any new dietary supplements. Your healthcare practitioner is ideally suited to guide you on making informed decisions to ensure you are taking the right supplements to meet your individual needs.  


Louise O’Connor, aka The Thyroid Naturopath is a registered Australian Naturopath. Louise’s mission is to create greater awareness of the vital importance of optimal thyroid health from her holistic perspective. In 2011 Louise formulated ThyroSynergy® to help make a difference to those struggling with hypothyroidism. It’s now a top selling supplement that supplies TEN synergistic vitamins and minerals to provide powerful support to help you get back to feeling well!* Louise is also the author of the popular e-Book: The Natural Thyroid Diet. Your Holistic Guide to Living Well, Living Vibrantly. (2018 Edition). Be sure to subscribe to her monthly Thyroid Health eNewsletter and follow her on Facebook, Instagram and Twitter.


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

Note: This information should not be used as a substitute for treatment, or advice from your qualified healthcare practitioner. This is especially important if you have a diagnosed medical condition, or are taking prescribed medication. Some natural dietary supplements are not recommended during pregnancy, or breast feeding.