Thyroid supplements have become a popular option for improving energy and supporting healthy metabolic function. Thyroid health plays a crucial role in regulating energy and metabolism.
The thyroid gland produces hormones that influence how the body converts food into energy, controls body temperature, and supports overall health.
When thyroid function is disrupted, it can lead to fatigue, weight gain, and metabolic issues.
Let us talk about Thyroid supplements for energy and metabolism you can find in 2025.
The information provided is for informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Thyroid supplements can interact with medications and underlying health conditions, and improper use may lead to adverse effects. Before starting any new supplement, especially those related to thyroid health, it is essential to consult with a qualified healthcare professional, such as a doctor, endocrinologist, or registered dietitian.
Iodine
Iodine is essential for thyroid hormone production, as the thyroid gland absorbs iodine from the diet to create triiodothyronine (T3) and thyroxine (T4) hormones.
- Regulating metabolism
- Energy levels
- Overall bodily functions
Without enough iodine, the thyroid cannot produce sufficient hormones, leading to issues like sluggish metabolism, weight gain, fatigue, and poor cognitive function.
- Required for the production of T3 and T4 hormones
- Regulates metabolic rate and energy levels
- Essential for cognitive function and temperature regulation
Too much iodine can also have negative effects, including thyroid dysfunction and autoimmune thyroid disease.
Maintaining a proper balance is critical to prevent thyroid imbalances. While iodine is naturally found in seaweed, dairy products, eggs, and iodized salt, dietary intake can fluctuate, making supplementation helpful for consistency.
- Seaweed (kelp, nori)
- Dairy (milk, yogurt, cheese)
- Eggs
- Iodized salt
- Seafood (fish, shellfish)
Selenium
Selenium is vital for thyroid hormone metabolism. It supports the conversion of the inactive T4 hormone into the more active T3 hormone, which is responsible for regulating the body’s energy and metabolic functions.
Selenium also functions as a powerful antioxidant, helping to reduce oxidative stress in the thyroid gland.
- Enhances conversion of T4 to T3
- Reduces oxidative stress on thyroid cells
- Lowers thyroid antibodies, helping to stabilize autoimmune thyroid disorders
Selenium deficiency has been linked to hypothyroidism and thyroiditis. Supplementation has shown positive results in reducing thyroid antibody levels in individuals with autoimmune thyroiditis (such as Hashimoto’s disease), improving both thyroid function and energy levels.
- Brazil nuts
- Tuna
- Eggs
- Sunflower seeds
- Poultry
Zinc
Zinc plays an important role in thyroid hormone synthesis and immune function. It contributes to the formation of T3 and T4 hormones and helps regulate the body’s metabolic rate.
Zinc deficiency can impair thyroid function, leading to fatigue, hair thinning, and weight fluctuations.
- Promotes synthesis of thyroid hormones
- Regulates immune response
- Helps with hair health and metabolic regulation
Zinc also works closely with selenium to regulate thyroid function and reduce inflammation in the gland.
However, excessive zinc intake can deplete copper levels, which can negatively affect thyroid balance.
- Shellfish (oysters, crab)
- Red meat
- Poultry
- Pumpkin seeds
- Lentils
Magnesium
Magnesium is involved in over 300 biochemical reactions in the body, including those related to thyroid hormone production and energy metabolism.
It helps convert T4 to T3 and regulates the body’s stress response. Magnesium deficiency can cause muscle weakness, fatigue, and poor metabolic function.
- Supports T3 and T4 conversion
- Reduces stress and improves sleep quality
- Enhances metabolic rate and energy levels
Magnesium also plays a role in maintaining healthy cortisol levels, which indirectly impacts thyroid function.
Stress reduction through magnesium intake supports overall hormonal balance.
- Leafy greens (spinach, kale)
- Nuts (almonds, cashews)
- Whole grains (brown rice, quinoa)
- Avocados
- Legumes
Vitamin D
Vitamin D is essential for thyroid function and immune health. It regulates calcium levels and supports the immune system, reducing inflammation in the thyroid gland.
Low vitamin D levels are linked to higher rates of autoimmune thyroid disorders, such as Hashimoto’s thyroiditis.
- Improves thyroid hormone production
- Reduces inflammation in the thyroid gland
- Enhances calcium absorption and bone health
Vitamin D supplementation has been shown to improve thyroid function in people with low levels. Sun exposure is a natural source of vitamin D, but many people require supplements to maintain sufficient levels.
- Sunlight exposure
- Fatty fish (salmon, mackerel)
- Egg yolks
- Fortified milk and cereals
Vitamin B12
Vitamin B12 supports energy production and nervous system health.
People with hypothyroidism are at a higher risk of B12 deficiency due to poor nutrient absorption, which can lead to fatigue, weakness, and mood issues.
- Boosts energy levels
- Supports nerve function
- Improves cognitive clarity
Supplementation with B12 can help reduce fatigue and improve overall thyroid function, especially in people with autoimmune thyroid disorders.
- Meat (beef, liver)
- Fish (salmon, trout)
- Dairy products
- Fortified plant-based milk
Iron
Iron is critical for thyroid hormone synthesis. Low iron levels are linked to hypothyroidism and poor metabolic function. Iron deficiency is more common in women due to menstrual blood loss.
- Promotes thyroid hormone production
- Enhances oxygen transport and energy levels
- Supports metabolic activity
Iron supplements are often combined with vitamin C to improve absorption and enhance thyroid function.
- Red meat
- Leafy greens
- Lentils
- Tofu
Myo-Inositol
Myo-inositol is involved in cellular signaling and supports thyroid-stimulating hormone (TSH) regulation.
Combined with selenium, it has been shown to improve thyroid function in people with hypothyroidism.
- Regulates TSH levels
- Reduces thyroid inflammation
- Improves overall metabolic function
Myo-inositol is found in fruits, beans, and whole grains, but supplementation offers higher concentrations for better thyroid support.
Omega-3 Fatty Acids
Omega-3 fatty acids have anti-inflammatory properties that benefit thyroid health.
They enhance cell membrane function, allowing thyroid hormones to interact with cells more effectively.
- Reduce inflammation
- Support cell function
- Improve metabolic activity
Fish oil supplements are the most common source of omega-3s, but flaxseed and chia seeds also provide plant-based options.
Copper
Copper works with zinc to maintain balanced thyroid function. Zinc and copper must be properly balanced, as an imbalance can suppress thyroid activity.
- Supports hormone synthesis
- Enhances metabolic balance
- Works with zinc for proper thyroid function
Sources of copper include shellfish, nuts, and seeds.
Turmeric (Curcumin)
Curcumin, the active compound in turmeric, has strong anti-inflammatory and antioxidant properties. It protects thyroid cells from oxidative stress and enhances overall thyroid function.
- Reduces inflammation
- Protects thyroid cells
- Supports metabolic health
Turmeric can be consumed as a spice or taken as a supplement.
Probiotics
Probiotics support gut health, which is linked to thyroid function. A healthy gut improves nutrient absorption, essential for producing thyroid hormones.
- Improve gut health and digestion
- Enhance nutrient absorption
- Support immune balance
Yogurt, kimchi, and sauerkraut are natural sources of probiotics.
Ginger
Ginger has anti-inflammatory and digestive benefits that improve thyroid function. It helps reduce symptoms of hypothyroidism and supports metabolic activity.
- Reduces inflammation
- Enhances digestion
- Boosts metabolism
Ginger tea and supplements are effective ways to increase ginger intake.
How Thyroid Support Supplements Work
The thyroid gland produces two primary hormones, triiodothyronine (T3) and thyroxine (T4), that regulate metabolism and energy production. The production of these hormones depends on iodine and several key nutrients.
When the thyroid is not functioning properly, it can result in either hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid).
- Boosting Hormone Production – Some supplements provide iodine, selenium, and zinc, which are essential for the synthesis and conversion of thyroid hormones.
- Supporting Nutrient Balance – Nutrient deficiencies, such as low magnesium or iron levels, can impair thyroid function. Supplements help fill these gaps to maintain proper hormone levels.
- Reducing Inflammation and Autoimmune Response – Chronic inflammation and autoimmune issues, like Hashimoto’s thyroiditis, can interfere with thyroid function. Anti-inflammatory supplements like turmeric and omega-3 fatty acids help reduce these issues.
By targeting these key areas, thyroid supplements aim to restore balance and improve metabolic function, leading to better energy levels and overall health.
The Bottom Line
A balanced combination of nutrients, anti-inflammatory agents, and gut health support is the most effective approach for improving thyroid function and metabolic health.
Working with a healthcare provider helps ensure proper dosage and avoids potential imbalances.
Proper nutrition, targeted supplements, and regular testing contribute to improved thyroid health and better energy levels.