Hypothyroidism and Breast Cancer: 7 Thyroid Tips to Beat Breast Cancer and Survive By NOT Fighting

By | 2017-04-24T23:56:37+00:00 October 27th, 2016|Cancer, Hypothyroidism|12 Comments
  • hypothyroidism and breast cancer

Are we really winning the war on breast cancer?

Well, the cancer research groups that have been fighting the “War on Cancer” for the past forty-five years would have you think so.

In reality, we haven’t really made much, if any, real progress…

…except for what I’m going to share with you here.

Yet, it has little to do with the billions of dollars pumped into cancer research year after year.

The answer has been right in front of our faces for almost one hundred years (literally).

It’s just not the answer that pharmaceutical companies are willing to accept.

Pharmaceutical companies largely contribute to cancer research. They also hold a lot of control over much of the cancer research being conducted.

So, they have vested interests in pharmaceutical solutions that are profitable.

They don’t care much for solutions they can’t profit from.

We all know that the standard pharmaceutical and medical treatment for hypothyroidism is ineffective.

We all know that there are much better and more effective treatment options available.

Well, the same goes for breast cancer as well.

And this applies to thyroid sufferers more than anyone (especially those with Hashomoto’s thyroiditis).

Hypothyroidism and Breast Cancer: Why You’re at an Even Greater Risk

Some call the connection between hypothyroidism and breast cancer “controversial”.

Yet, when you look at the studies that go beyond just comparing “diagnoses” the answer becomes much clearer.

Numerous studies show lower levels of thyroid hormone (T3) in breast cancer patients, compared to controls.

Studies also show a very high rate of anti-thyroid antibodies in breast cancer patients, which is why those with Hashimoto’s thyroiditis are at an even greater risk.

But, the bigger connection (and cause of most breast cancer) is found by looking at estrogen and progesterone.

In the past, I’ve written in detail about how hypothyroidism causes estrogen dominance and progesterone deficiency.

I’ve also shown how Hashimoto’s thyroiditis develops due to long-term estrogen dominance when hypothyroidism is improperly treated.

(NOTE: Want to learn more about this. It’s covered in detail in this article on “How to Heal Your Thyroid By Healing Your Liver”.)

According to Dr. Raymond Peat, studies showing estrogen’s cancer-causing effects and progesterone’s anti-cancer effects date back to the 1930’s.

Today, there’s so much evidence showing estrogen’s involvement in breast cancer and tumor growth that it’s now accepted without question.

Needless to say, the risk of breast cancer among hypothyroidism and Hashimoto’s sufferers is not only real… it’s frightening.

So, let’s look at seven ways to gain the upper-hand on hypothyroidism and breast cancer.

7 Ways to Beat Breast Cancer

While each of these plays a role in helping to beat existing breast cancer, I highly recommend you use the first six, which will also help to prevent it from occurring.

Of course, prevention is always the best way to beat any disease.

The last one mentioned here has been shown to be very effective against breast cancer, but more research is still needed.

1. Bio-Identical Progesterone Reprograms and Helps Shrink Breast Cancer Tumors

For decades, progesterone has been shown to be extremely effective against breast cancer.

The controversy behind its use has been due to the pharmaceutical industry’s insistence on the use of their patented synthetic progestins in breast cancer research, instead of real bio-identical progesterone.

Synthetic progestins don’t act the same way as bio-identical progesterone, and they’ve been shown to increase cancer risk.

Bio-Identical progesterone has been shown to be the ultimate weapon against breast cancer.

A newer landmark study shows that progesterone is so protective against breast cancer that:

  • In the absence of adequate progesterone, estrogen receptors turn on the “genes” that cause breast cancer to grow and metastasize (spread).
  • Supplementing progesterone reprograms the breast cancer’s estrogen receptors.
  • Supplementing progesterone helps significantly shrinks breast cancer tumor size.

In other words, supplementing progesterone not only protects and prevents breast cancer, but it also helps shrink existing breast cancer tumors.

Progesterone receptor modulates ERα action in breast cancer


“Progesterone inhibited oestrogen-mediated growth of ERa1 cell line xenografts and primary ERa1 breast tumour explants, and had increased anti-proliferative effects when coupled with an ERa antagonist.”

2. Thyroid Hormone (T3) Inhibits the Estrogen Producing Aromatase Enzyme

Thyroid hormone (T3) works positively with progesterone in a number of ways.

For starters, it helps increase natural progesterone production.

But it also helps by inhibiting the aromatase enzyme, which can chronically overproduce estrogen within your fat cells.

Increased aromatase is commonly found in hypothyroidism and increases with age. It has also long been associated with breast cancer.

Aromatase inhibitors are often prescribed to breast cancer patients, to help prevent the recurrence of the cancer.

Thyroid hormone (T3) and progesterone both inhibit aromatase as well and can provide the same preventative effects.

I use both with my clients, which you can find on our page of Thyroid Supplements.

3. Niacinamide Prevents Breast Cancer Metastasis (Spreading) and Increases Survival Even after It Spreads

Breast cancer itself is scary enough.

But the way it kills you is through the spreading of the cancer throughout your body.

Niacinamide has been shown to not only prevent the metastasis (spreading) of breast cancer, but to also increase survival once the spreading has occurred.

It also provides a number of therapeutic benefits for hypothyroidism sufferers, which is why we use it in our Vitamin B Thyroid Complex.

Mitochondrial complex I activity and NAD+/NADH balance regulate breast cancer progression.


“Importantly, NAM [Niacinamide] treatment starting after primary tumor surgery significantly increased animal survival in this model of highly aggressive metastatic breast cancer… Importantly histopathological analysis revealed that NAM [Niacinamide] treatment drastically inhibited breast cancer progression.”

4. Eating Adequate Protein AND Carbohydrates Is Essential to Detoxifying Estrogen

In hypothyroidism, estrogen builds up within your body because your liver can’t detoxify it.

To detoxify estrogen properly, you depend on your glucuronidation detoxification pathway.

Supporting this essential detoxification pathway requires adequate dietary protein and carbohydrates together.

A minimum of 70 to 100 grams of high quality protein (not plant based) is required, along with even more carbohydrate.

Healing your thyroid involves using the right carbs and learning how to balance them properly.

You’ll learn about one of the most beneficial carbohydrates that you can use to help heal your thyroid when you download the 3 Food Triple-Thyroid-Boosting Daily Protocol.

The Simple 3 Food Triple Thyroid-Boosting Daily Protocol

5. Carrots Help to Detoxify Estrogen When Your Liver Can’t

When your liver can’t detoxify estrogen, as described above, your body excretes it into your bile in an attempt to flush it out through your digestive tract.

The only problem is that estrogen is often easily re-absorbed within the digestive tract and never leaves the body.

Raw carrot fiber is one the safest sources of fiber that can help absorb the estrogen within your digestive tract and prevent its re-absorption.

(NOTE: Want to learn the highly-effective carrot salad recipe I use with my clients? You can find it here in this article on “How to Boost Your Thyroid in 60-Seconds with a Carrot”.)

6. Avoid PUFAs to Decrease Estrogen Activity

PUFAs, or polyunsaturated fats, are well known to suppress your thyroid on all levels.

(NOTE: Want to learn more about how they suppress your thyroid? I cover this in more detail in this article on “The Worst Food for Your Thyroid”.)

But a diet high in PUFAs has been shown to increase breast cancer rates as well, likely due to the estrogenic effects of these unsaturated fats.

 “The unsaturated fatty acids, but not the saturated fatty acids, free estrogen from the serum proteins that bind it, and increase its availability and activity in tissue cells.”

– Dr. Raymond Peat

In other words, PUFAs are known to synergize with estrogen, amplifying its activity and harmful effects.

So, avoiding PUFAs and replacing them with saturated fats in your diet can help protect you against breast cancer.

Free fatty acids: a possible regulator of the available oestradiol fractions in plasma.


“In vitro studies we have carried out show that unsaturated free fatty acids can increase the biologically available oestradiol fractions in plasma. It is possible therefore that the increased risk for breast cancer associated with a diet high in fats [unsaturated] may be related to an elevation in the biologically available oestradiol fractions in plasma.”

7. Artemesinin Shows Promise In Killing Breast Cancer Cells (but needs more research)

I don’t talk much of healing herbs, mostly because there’s often a lack of research, and the mechanisms of their actions are not very well understood.

So, it’s difficult to recommend something without knowing how or why it might (or might not) work.

Artemesinin, extracted from Sweet Wormwood, may end up being an exception to the rule.

It’s been used widely to successfully treat malaria.

Yet, it was discovered that it also had potent anti-cancer effects, which has spawned more research into understanding its actions.

Research thus far has shown that it is extremely effective at killing breast cancer cells (among other forms of cancer) without harming healthy non-cancerous cells.

It could prove to be an effective chemotherapy agent, but more research is still needed.

Antiproliferative effects of artemisinin on human breast cancer cells requires the downregulated expression of the E2F1 transcription factor and loss of E2F1-target cell cycle genes.


“our results demonstrate that the artemisinin disruption of E2F1 transcription factor expression mediates the cell cycle arrest of human breast cancer cells…”

Well, there you have it!

We may not be winning the “war” on breast cancer, but that doesn’t mean that you don’t have effective options.

As evidence continues to mount, how long can progesterone continue to be ignored as an effective breast cancer treatment?

Seeing as how cancer research has ignored it for almost a hundred years, I don’t see any reason why that would change anytime soon.

Sometimes we have no other option but to take control of our own health.

But as you can see, there are many simple ways to improve your thyroid health, which can also help prevent cancer.

If you want to learn one of the easiest ways to boost your thyroid health, which I use with every one of my clients, then download the 3 Food Triple-Thyroid-Boosting Daily Protocol.

The Simple 3 Food Triple Thyroid-Boosting Daily Protocol

About the Author:

Tom Brimeyer is the founder of Forefront Health and the creator of the popular Hypothyroidism Revolution program series. Specializing in thyroid and metabolism disorders, Tom's work has impacted over 50,000 people spanning more than 60 countries. Tom is also a highly sought after practitioner who runs a successful health consulting practice where he continues to help clients across the globe to take back control of their lives from their devastating health conditions.


  1. Laurie October 27, 2016 at 8:10 am - Reply

    I have seen two recent post regarding the bio-identical prog. Do you recommend that the patient be tested before using this to see if it’s needed, or would a small dose be beneficial regardless?

    • Tom Brimeyer October 27, 2016 at 11:04 am - Reply

      Hi Laurie, testing isn’t necessary and I don’t typically test my clients unless necessary. In cases of severe estrogen dominance, it’s important to supplement larger dosages to prevent any potential conversion to estrogen.

  2. Grace October 27, 2016 at 10:00 am - Reply

    Love your articles and I have tried at best to stick to your food options. However I tend to get IBS ( irritable bowel syndrome) and naturally reach for some fibre drink or Dulcolax for a quick fix – is this normal or should I stop these laxatives altogether and find alternative remedy instead? I’ve been taking Extra Virgin coconut oil 2 tbs a day for 10mths now . I have less acid reflux but I still can’t move my bowels so easily just by taking it – of course I supplement this with veges and oranges and carrots and mushrooms. Not sure how to take this to another level…

    Pls help Tom – Gratefully Grace

  3. Mari October 28, 2016 at 1:33 pm - Reply

    Would you recommend to switch from a compounded pharmacy time released bio-identical progesterone or Prometrium to your progesterone supplement? I am already taking this type of progesterone

    • Tom Brimeyer October 31, 2016 at 3:18 pm - Reply

      Hi Mari, I cannot recommend you make any changes to your prescription medication. I will say that those of my clients who have used different sources, including prescriptions, prefer the progesterone oil.

  4. John November 3, 2016 at 9:43 am - Reply

    Does your bio-identical progesterone product contain anything from swine?

    • Tom Brimeyer November 3, 2016 at 9:55 am - Reply

      Hi John, no it does not.

  5. Ruth November 28, 2016 at 3:49 pm - Reply

    I have had BC, do you still recommend taking bio-identical hormones and if so, I am 67 years old, is that too old to take hormones?

    • Tom Brimeyer December 2, 2016 at 12:32 pm - Reply

      Bio-identical progesterone, yes. Never estrogen as it only increases risk of breast cancer, among other health complications. You’re not too old to use. It can still be very important post-menopause.

  6. Beth Pratt January 11, 2017 at 4:34 pm - Reply

    Can you use your progesterone oil on your skin or only orally?

    • Tom Brimeyer January 11, 2017 at 4:58 pm - Reply

      Hi Beth, it depends on the purpose you’re using it for, but yes. I often will use it with clients with RA rubbed into the affected joints. For general use, I wouldn’t recommend applying it to the skin.

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