Iodine & Testosterone: The Relationship Between The Two

Mihai Voinea
Medically reviewed by Mihai Voinea Doctor of Medicine (M.D.) — Research analysis by Alex Eriksson

Are you taking enough iodine? Testosterone levels, after all, can be negatively affected whenever you are not getting enough of this common yet often overlooked trace mineral.

Moreover, don’t forget that today’s lifestyle drastically reduces testosterone. For example, the food we eat could contain compounds which hinder the production of the main male hormone.

Toxins from things like plastic bottles, medication, pollution, and even seemingly harmless personal care products also lead to lower testosterone levels.

One natural way of bringing your total testosterone back up is by eating food that naturally raises the hormone’s levels. As you’d expect, foods containing iodine can help in that aspect.



Iodine is a key element for human health and widely required in many biological functions. Iodine is an essential component of thyroid gland hormones but also plays an important role in the regulation and sensitivity of other hormones, especially testosterone.

By using pregnenolone cream or pregnenolone supplements, the levels of the compound in the body increases, and this brings about various benefits such as fatigue relief, and delay of the aging process.
Disinfection of wounds

But What’s Iodine?

Iodine is a trace mineral that we typically get from dietary sources. It’s among the most important nutrients when it comes to keeping your thyroid healthy.

The thyroid gland is responsible for regulating many critical bodily processes. One of them is the rate at which natural hormones are produced, and that includes testosterone.

Iodine is absorbed by the thyroid glands from the blood. In the thyroid, this trace element is converted into two kinds of thyroid hormone called T3 (triiodothyronine) and T4 (thyroxine).

These thyroid hormones are released into the blood to reach the target organs—one of which is the testes. The testes is where all the body’s testosterone get produced.

If the body’s iodine supply is significantly reduced over a long period, well, things become problematic. The thyroid is among the most affected when iodine levels are too low, leading to a condition called hypothyroidism.

Of course, with hypothyroidism, thyroid function is limited. And as a result, the balance between testosterone, prolactin, and estradiol becomes sub-optimal.

If you’re interested to know whether your thyroid if still working optimally, you should definitely consider getting a thyroid-stimulating hormone (TSH) test.


The Three Hormones

Low levels of testosterone can lead to an increase in both estradiol (estrogen) and prolactin. This can cause problems such as enlargement of the breasts in men, called gynecomastia.

This condition can also lead to reduced secretion of growth hormones such as luteinizing hormones and follicle-stimulating hormone, which are crucial in maintaining virility.

Also, not having enough of those two can lead to further reduction in the production of testosterone. Keep in mind that low testosterone can increase the risk for prostate cancer and even breast cancer.

So, simply put, low iodine can lead to hypothyroidism, and in turn hypothyroidism can lead to an increase in the body’s estrogen levels. Again, having too much estrogen negatively affects testosterone levels.


Fighting Deficiency

There are many causes of iodine deficiency, but the most common is having too little dietary iodine intake. People just do not eat enough iodine-rich foods.

This trace mineral can be found in the soil. Plants absorb this mineral through their roots and so, fruits and other plant parts should contain a good amount of iodine.

Unfortunately, modern farming practices strip the soil of iodine. As a result, plants no longer contain sufficient amounts of iodine for us to harness—highlighting the need to look for alternatives.

Well, it’s a good thing that we don’t have to rely on the land when it comes to getting our supply of iodine. Foods that contain high amounts of the trace mineral that can help alleviate iodine deficiency include:

  • Seaweed

    Seaweed, such as nori, is a very rich source of natural iodine. The iodine content of a 100-gram serving of dried seaweed can be as high as 54 mg—that’s more than enough to meet the RDA.

    However, it is not advisable to eat lots of seaweed on a daily basis. High doses of the mineral can easily make you prone to toxicity, which can trigger symptoms such as delirium and vomiting.
kelp seaweed
oysters
  • Oyster

    Oysters have long enjoyed its reputation for being a libido booster and for improving reproductive function as a whole. A 100-gram serving of oysters can give you 160 mcg of iodine—that’s about 106% of the RDA.

    However, some people do not have access to fresh oysters all the time. There’s also the risk of food poisoning from shellfish, particularly those harvested from dirty waters.
  • Wild Cod

    Wild-caught cod is another top-notch source of iodine. A 100-gram serving of this seafood can supply you with 100 mcg of the mineral (about 66% of the RDA).

    Do you really have to go for wild-caught? Well, farmed fish are typically fed with soy pellets—and soy or soya beans contain a large amount of xenoestrogens.

    These xenoestrogens (and other estrogen-like compounds)can have an inhibitory effect on your body’s natural testosterone production process.

If you’re not into any of the things we’ve listed, you could at least get iodized salt—a kind of salt that’s specifically made to help iodine deficient people.

On the other hand, if you’re currently following a vegan diet and you really want to get iodine from plant sources, you could add cranberries and potatoes to your dishes.

Again though, there’s the issue of whether these are grown in nutrient-deficient soils. Also, some may have been exposed to chemicals such as fertilizers and insecticides.


Iodine Supplementation

To further improve your daily intake of iodine, you could try taking supplements. There are many iodine supplements available on the market but not every single one of them can help you.

Look for iodine supplements made from safe and high quality sources. Also, don’t forget that the way in which a supplement should be taken affects absorption and effectiveness as well.

One of the easiest ways to absorb iodine is through liquid drops—and this is why we recommend nascent iodine supplements, such as Go Nutrients’ Iodine Edge.


Iodine is not just something taken for the sake of preventing mental retardation, goiter, and weight gain. It’s a vital element needed in keeping free testosterone levels within normal range.

By using pregnenolone cream or pregnenolone supplements, the levels of the compound in the body increases, and this brings about various benefits such as fatigue relief, and delay of the aging process.

Better Hormonal Health

Iodine is a trace mineral with a large role to fulfill. It’s definitely a good thing that it can be obtained through natural food sources

Aside from getting enough iodine though, there are other ways to naturally improve your hormone health. Eating eggs, for instance, can be a great way to restore your hormonal balance.

Of course, it’s perfectly fine if you wish to take things one step at a time. So, don’t think twice about focusing on iodine—testosterone should still get the boost it needs.


author
Alex Eriksson (Research Analysis)

Alex Eriksson is the founder of Anabolic Health, a men’s health blog dedicated to providing honest and research-backed advice for optimal male hormonal health. Anabolic Health aspires to become a trusted resource where men can come and learn how to fix their hormonal problems naturally, without pharmaceuticals.

author
Mihai Voinea (Editor)

Mihai is a medical doctor and entrepreneur with a burning obsession for performance and health. Mihai is also an IronMan, ultramarathon runner, and co-founder of Marsilian, which owns two e-learning platforms for future medical students and doctors.





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