Health Blog

Ishbel Poole

Homeopathy & Bioresonance

Could your dental treatment or fluoride toothpaste be causing your thyroid problems?

It is increasingly common for patients to come with issues such as low energy levels, weight gain and hair loss related to an underactive thyroid gland.  Some have a diagnosis of hypothyroidism from their GP following blood tests and they are taking medications such as Armour Thyroid or L-Thyroxine (levothyroxine sodium). Others have the symptoms of an underactive thyroid, but they don’t want to take a pharmaceutical hormone and are looking for alternative treatments which address the root cause of the problem.

There are many factors which can affect the thyroid. These include environmental toxins, hormonal imbalances and emotional issues so I am certainly not suggesting that all thyroid problems are caused by dental treatment. However I wanted to highlight this aspect of thyroid health as people are generally unaware of the consequences of the dental treatments I am going to discuss here.

I am not referring to routine dental and hygiene check-ups or a simple tooth extraction but to specific aspects of dental treatment which can be detrimental to thyroid function. These are:

  • High strength fluoride toothpastes and treatments
  • X-rays
  • Mercury amalgam or so-called “Silver” fillings

What’s the problem with fluoride toothpastes?

Fluoride is the enemy of a healthy thyroid.  In the past, doctors in Europe and South America prescribed fluoride to reduce thyroid function in patients with over-active thyroids.

Do you remember the Periodic Table from your school chemistry lessons?  Bromide, Chloride, Fluoride and Iodide are all in the same chemical group. Researcher Andreas Schuld has found that excess fluoride correlates with other thyroid-related issues such as iodine deficiency. Fluoride, being chemically similar in structure, is absorbed by the iodine receptors instead.  High fluoride toothpastes are a major source of this – particularly the high fluoride prescription toothpastes.  If you also live in an area that has fluoridation of the tap water then you are exposed to even greater levels.

The thyroid needs an adequate supply of iodine to function well – this means having iodine in your diet and also the ability to absorb it.  Most of us in the UK are already low in iodine as it is not abundant in our diet, so we are off to a bad start. Iodine is not only necessary for the everyday healthy functioning of the thyroid but it also protects this important gland from radiation damage, which brings us on to the next aspect of dental treatment which can be detrimental – x-rays.

What’s the problem with x-rays?

Dental x-rays, like all x-rays, emit a small amount of radiation. This is why your dentist and the dental assistant will stand as far away from you as possible when taking the x-rays – my dentist would stand on the other side of the surgery door. Repeated x-rays increase the total level of radioactive exposure. These dental x-rays are directed at your teeth and jaw bones – in close proximity to the whole of your head, neck and thyroid. Good dentists will use a shield to protect their client’s thyroid.

What’s the problem with mercury fillings?

In the UK dentists are advised against the placement or removal of mercury amalgam (or so-called “silver fillings”) when a women is pregnant. This is to avoid the risk of mercury crossing the blood barrier and affecting the foetus.

In my view there is no safe time to have a mercury amalgam filling. Mercury is a poison – anytime, anywhere, any place – and the mouth is definitely not somewhere to have even a small lump of mercury. Mercury leaking out of dental fillings can affect just about every system and organ in the body including the thyroid. Candida overgrowth is often linked to mercury toxicity and long term candida sufferers will usually also have problems with adrenal and thyroid fatigue.

What can you do to protect the health of your thyroid?

  1. Choose your dentist wisely. If possible find a holistic dentist who is educated about how their interventions can affect the whole of your body, including the thyroid, spine and digestive systems.  Germany has the best training for dentists in this regard, although you can find a few holistic dentists working in the UK.  Ideally you want a dentist who uses low radiation x-ray equipment and only takes x-rays when they are necessary and not routinely.  The dentist should understand about mercury toxicity and only use safe material for filling teeth - if they are in denial about mercury I would find another dentist.
  2. Educate yourself about the contents of toothpastes, dental materials and anaesthetics.
  3. If considering braces or root canal also ensure the dentist understands how to minimise the physical trauma to the jaw and muscles in your face (the temporomandibular joint), cranial bones and muscles, the neck and spine.
  4. Ensure you have good dental hygiene. Brushing correctly and regular flossing are the most important aspects and the brand of toothpaste or fluoride content is mostly unimportant. Some people even make their own toothpaste.
  5. Use warm salt water mouth rinses: twice a day if you have any sort of infection and twice a week for maintenance.  These rinses keep your gums healthy. Surfers, because of the sea water, have less tooth decay. Unhealthy infected gums can lead to problems with the gastrointestinal tract and even to heart issues.
  6. If you are already suffering with low thyroid function then see a homeopath to support and rebalance the thyroid. The homeopath can select remedies to help clear mercury and fluoride toxicity and the negative effect of radiation from x-rays.

Your dental health can affect every aspect of your general health.  Educate yourself – knowledge and understanding will enable you to make the best decisions concerning treatment.

Some useful links for further information

Information on mercury fillings:

Information on fluoride:

Digestive Disorders

A healthy digestive system is vital for optimal functioning of all our other systems including our immune response, our nervous system and our hormonal balance.  

A poor diet high in sugar, processed foods, alcohol or caffeine and drugs such as antibiotics, steroids, the hormonal pill and painkillers can all cause damage to the gastrointestinal tract. The damage triggers an inflammatory response in the body and the release of stress hormones. Over time, this can lead to all kinds of seemingly unrelated problems such as allergies, skin conditions and weight gain.

Common problems which need to be resolved include candida overgrowth, bacterial or parasite infections. 

When homeopathic remedies are prescribed to match a person's specific symptoms they can rebalance a troubled digestive system. Remedies can be selected to address underlying organ weaknesses - eg liver or gallbladder - or to correct disturbances caused by stress or medications.

Alongside the remedies, good eating habits are vital to keep the digestion healthy.


Some General Tips and Advice for Healthy Digestion

Eat slowly and chew your food well. Digestion starts in the mouth where the food is broken down into small pieces and the enzymes in the saliva begin the breakdown of carbohydrates.

Aim to have a large breakfast, a medium sized lunch and a light supper. Our digestive functions are at their peak between 7am and 9am in the morning.

Fruits and vegetables are a healthy supplement to any diet, you should maintain a ratio of eating more vegetables than fruits. Fruits are higher in carbohydrates than vegetables, and should be eaten in the morning so that your body can burn the sugar during the day. Vegetables are a good choice at lunch time and during the evening.

Drink between 1.5 to 2.0 litres (depending on your weight) of water each day. Water is your body's principal chemical component and makes up about 60% of your body weight. Every system in your body depends on water. Water flushes toxins out of vital organs, carries nutrients to your cells and provides a moist environment for ear, nose and throat tissues, as well as the intestines. The bowel functions best when it is well hydrated.

Use coconut oil for cooking and olive oil for salad dressing. Coconut oil helps prevent various digestion related problems including irritable bowel syndrome. It contains antimicrobial fats, lauric acid, capric acid and caprylic acid which have antifungal, antibacterial and antiviral properties. The human body converts lauric acid into monolaurin which helps in fighting harmful bacteria such as listeria and heliobacter pylori, and harmful protozoa such as giardia.  Olive oil protects against heart disease and colon cancer.

Add gentle fibre to your diet if you suffer from irregular bowel function. The best and most gentle source of fibre is whole chia seeds. Use 2 to 3 teaspoonfuls of chia each day and mix well into a large glass of water and leave to stand for at least 30 minutes before drinking. It is best when prepared the night before and topped up with some warm water in the morning before drinking. Make sure that you drink plenty of water when taking the chia.

Exercise: some gentle exercise on a regular basis improves bowel function. Also try to go for a leisurely 15 minute walk after lunch and dinner if you can rather than sitting down.