Thyroid Hormones help to keep us lean and energetic
Thyroid Hormones
Updated Feb. 26th, 2026 | Read Time: 2 Minutes | What You Will Learn:
- What is The Thyroid?
- Symptoms of Hypothyroidism
- Supplements to Improve Thyroid Hormones
- Nutritional Information
- Reader Comments (2)
What is The Thyroid?
Nestled in the front of your neck, the thyroid is a small, butterfly-shaped gland that plays a crucial role in regulating your body's metabolism. It controls how your body processes sugar, fat, and protein. It also influences key functions, like heart rate, body temperature, digestion, fertility, and skin and bone health. Maintaining the right balance of thyroid hormone is vital, ensuring your body stays energized while also having time to repair and thrive.
Symptoms of Hypothyroidism
Low thyroid function is common in today’s society. This is due in part to stressful lifestyles, lack of nutritious foods and an increase in environmental pollutants.
Signs your thyroid may be low functioning include:
- Weight gain
- Frequent infections
- Dry and cold skin
- Poor nail growth and hair loss
- High cholesterol
- Swelling of the hands and feet
- Menstrual irregularities
- Goiter
- Fatigue and an increased need for sleep
- Decreased initiative, lack of concentration, and poor memory
- Bowel changes
- Muscle and joint aches
- Allergies and asthma
Supplements to Improve Thyroid Hormones
If you notice a change in your thyroid hormone levels and are diagnosed with hypothyroidism, Thyroxin is available by prescription in Canada. But, if you'd like a natural product, a supplement called Thyroid or Armour thyroid contains both T4 and the more active T3. This is important for a small percentage of people who can’t convert T4 into T3.
Most thyroid glandular supplements are certified thyroxin- free to eliminate the risk of sending users into a hyperthyroid state. The best source for glandular extracts is New Zealand, where they are free from pesticides, growth hormones, antibiotics and disease.
Here are several alternatives to enhance your body’s production of thyroxin without taking thyroxin itself:
- Protein intake is important because it contains the amino acid tyrosine, a precursor to thyroxin.
- Vitamins and minerals are needed to produce and convert thyroxin into the more potent T3. These nutrients include iodine, copper, zinc, selenium, vitamin A and vitamin E.
- Thyroid glandular is an extract of the thyroid gland of an animal, usually a sheep or cow. It supports the activity of the thyroid and regulates metabolism. It may provide its users with a mild increase in energy and stamina.
Dietary considerations for optimizing thyroid functioning include:
- Avoiding chlorinated and fluoridated water because they block iodine receptors in the thyroid.
- Avoiding broccoli, brussel sprouts, cabbage, cauliflower, kale, peaches, pears, rutabagas, soybeans, onions, spinach and turnips because they suppress thyroid hormone function.




Wow! There's a lot to think about when it comes to thyroid health. I wonder if most people who can't convert T3 to T4 are aware of this deficit? Also, thyroid glandular sounds useful but given it's extacted from animals, definitely not suitable for vegans-is there a vegan substitute? Finally, I didn't know that chlorinated and fluoridated water can block iodine receptors in the thyroid-I wonder if perscription high flouride toothpaste could have an adverse effect on the thyroid? Thank you so much for this article. It as very interesting and definitely got my mind turning on the topic of thyroid health!!
Hello Rachel,
Thank you for your message. In response to your question, no, those who have trouble converting T3 to T4 are very unlikely to know, though they may suspect that if they have a lot of the symptoms associated with hypothyroidism.
As far as thyroid glandulars, there really aren't any vegan alternatives, save for plant-based supplements that feature ingredients like iodine, selenium, zinc, and other nutrients that are essential for thyroid function. Other helpful options include seaweed, such as kelp, dulse, and nori, which are rich in iodine, as well as spirulina and chlorella both of which are nutrient-dense and contain a variety of vitamins, minerals, and antioxidants, including iodine. Incorporating these algae into your diet can help support overall health, including thyroid function. Medicinal herbs like ashwagandha, tulsi, ginseng, licorice root and rhodiola can also really help. You can learn more about each of these supplements benefits through our supplement articles here, https://www.nationalnutrition.ca/articles/supplements/
Have a healthy day!