support normal thyroid function

Viridian Thyroid Complex 60 Capsules

  • £24.70

What is Viridian's Thyroid Complex?


Hypothyroidism is very common health condition, with prevalence between 3% and 18% in the adult population and with women, elderly persons, and iodine deficient people affected most frequently. Importantly, iodine deficiency is the most common cause of hypothyroidism worldwide. The United Kingdom is one of the worst countries affected by iodine deficiency, with up to 50 Percent of women of childbearing age found to be iodine deficient, making iodine deficiency an important public health issue.

Symptoms of hypothyroidism are subjective, vary according to the degree of hypothyroidism and have poor sensitivity and specificity for the condition (meaning there may be other important reasons for these symptoms).

Viridian's Thyroid complex aims to help optimal thyroid function in people and address any thyroid dysfunction.

Symptoms of low Thyroid Function

✓ Tiredness
✓ Being sensitive to cold
✓ Weight gain
✓ Constipation
✓ Depression
✓ Slow movements and thoughts ✓ Muscle aches and weakness
✓ Muscle cramps

Also brain fog and dry skin are other possible signs of thyroid issues in people.

People with symptoms indicative of hypothyroidism (a common medical conditions) should have a blood test to determine their thyroid function. Although thyroid hormone therapy may be prescribed, a number of micronutrient deficiencies can result in hypothyroidism and a Thyroid support supplement together with ab Varied Diet may be an effective strategy for improving thyroid health.

Role of nutrients in thyroid function within this thyroid specific dietary supplement

What are the active ingredients in Viridian's Thyroid Complex as a finished product.

IODINE for Thyroid Health

Iodine is an essential part of the thyroid hormones thyroxine (T4) and triiodothyronine (T3) (form of thyroid hormone) and deficiency leads to increased thyroid-stimulating hormone (TSH) stimulation, increased iodine uptake, rapid iodine turnover and enhanced production of T3 in relation to T4. This initial compensatory increase in thyroid function, however, comes at a long-term cost and subclinical hypothyroidism, thyroid autoimmunity and goiter may ultimately result from inadequate iodine intake. Above optimal iodine intake in the range of 150–250 mcg of iodine per day for adults can maintain healthy thyroid function and iodine supplementation has been shown to reverse hypothyroidism and improve related symptoms. 

In one study, iodine-deficient, overweight or obese women received 200mcg oral potassium iodide or a placebo daily for 6 months. Iodine supplementation improved iodine status, improved thyroid function (increased T4 and a decreased TSH and thyroglobulin,) and reduced cardiovascular risk markers (hypercholesterolemia). In another study, adults with iodine deficiency and goiter who were treated for 12 months with 200mcg of potassium iodide had an increase in the levels of total T4, a reduction in thyroglobulin and a reduction in thyroid size (reduced goiter).

Si Iodine definately seems to appear to help Thyroid Hormone Production.


SELENIUM and Thyroid function

Selenium supplements appear in many Thyroid support products and for good reason. Viridians Thyroid Complex packs an amazing 200ug Selenium. There is a very high concentration of selenium in the thyroid gland as it plays a vital role in protection of the thyroid against oxidative stress, the production of thyroid hormones and protection against autoimmunity. In the thyroid gland selenium is present in selenoproteins and plays a role in catalysing deiodinase enzymes that are involved the synthesis of thyroid hormones. Further, selenoproteins may protect against thyroid autoimmunity by maintaining healthy immune function.

Although selenium may help improve thyroid hormone metabolism, it’s effects on thyroid autoimmunity are better established. Several studies have found that supplementation with selenium (typically 200 mcg daily as selenomethionine) in autoimmune thyroiditis (Hashimoto) and mild Graves' disease improves clinical scores and well-being and reduces autoimmune antibody levels.


ZINC and a healthy Thyroid

  • Zinc is necessary for conversion of T4 to T3 and plays a role in the binding of T3 to its target receptor. Dietary zinc deficiency has been shown to reduce thyroid hormone production (thyroid-stimulating hormone and T4) and lower basal metabolic rate.23

    In a group of people with low levels of free T3 and normal T4, but elevated rT3 and mild to moderate zinc deficiency, taking oral zinc supplements for 12 months, normalized the serum free T3 and total T3 levels, decreased the rT3 and normalized TSH levels. In men and women with goitre, zinc supplementation at 30 mg per day, five days per week for 6-months was found to improve status and serum thyroid hormone levels. In women with hypothyroidism zinc supplementation, 30 mg per day, alone or in conjunction with selenium (200 mcg per day) significantly improved thyroid function by increasing serum T3, T4 and decreasing TSH after 12 weeks.

    Case reports have also demonstrated important effects of zinc supplementation on thyroid function and related symptoms. In one report, hair loss associated with hypothyroidism that did not resolve with thyroid hormone medication was successfully treated with zinc supplementation. In two school children with zinc deficiency, zinc supplementation 

    B VITAMINS  for thyroid function

  • Several B vitamins are known to play an important role in thyroid function, the maintenance of a healthy metabolism and the reduction of depression and fatigue increasing energy levels. Thiamine (vitamin B1) deficiency has been found to result in hypothyroidism. In a case series, supplementation with high-dose thiamine was effective in providing rapid relief of fatigue in

    Riboflavin (vitamin B2) deficiency has been correlated with low circulating T4 levels in women, and riboflavin is a co-factor for thyroid hormone synthesis and mitochondrial energy metabolism. Niacin (vitamin B3) is also involved in energy metabolism, and deficiency may result in symptoms of depression and fatigue.



• VITAMIN A - Deficiency of vitamin A usually found in a carotenoid mix in the modern diet)has been associated with a decreased thyroid iodine uptake, reduced synthesis and secretion of thyroid hormones, as well as thyroid gland enlargement. A number of studies have demonstrated the ability of vitamin A supplementation to improve thyroid function and reduce goiter in children living in developing countries where vitamin A deficiency is common.

A 4-month randomized, double blind controlled trial in women 17-50 years old evaluated the effects of vitamin A (25,000 IU per day of retinyl palmitate) or placebo on thyroid function.

Compared to placebo, vitamin A supplementation caused a significant improvement in thyroid function with a reduction in serum TSH concentration and an increase in serum T3 levels.19 Because daily intakes of vitamin A above 5,000IU daily are associated with adverse effects on bone health in older adults, we recommend taking a supplement that provides no more than 2,500 IU of vitamin A daily.

mg/day) for 4 months improved thyroid hormone levels, particularly T3, and resting people with hypothyroidism due by Hashimoto's thyroiditis.30 In healthy, elderly women with marginal thiamine deficiency, 10 mg of thiamine daily significantly increased appetite, energy intake, body weight, general well-being and decreased fatigue.31

IRON and the Thyroid Gland

Iron is essential in the functioning of the thyroid. Deficiency of iron has shown in research to correlate with hypothyroidism. Several studies have reported the association of thyroid function with iron status.

Recent research has further supported this statement. A cross-sectional study was conducted among children who lived in two hilly districts of eastern Nepal. Researchers assessed iron and iodine status and thyroid function. A total of 227 children aged 6-12 years participated in the study. Urine samples and blood samples were collected from each child. Haemoglobin (Hb) was measured within 24 hours, as well as serum iron and total iron binding capacity. Thyroid hormone, free thyroxine, and thyroid stimulating hormone (TSH) were also measured. Results showed that there was a significantly lower Hb level and iron status indicators in hypothyroidism (overt and subclinical) than euthyroid, and iron deficiency and anemia in a larger fraction of hypothyroid children.

These findings suggest that anemic participants tend to have higher TSH compared to non- anemic participants. Iron is necessary for the conversion of T4 to T3, with the current study observing that iron deficient children had significantly lower T3 levels than iron sufficient children, outlining the importance of optimal iron intake to support thyroid function. Further research has supported that children with iron deficiency anemia, especially of the severe type, are liable to develop subclinical hypothyroidism.

Further research suggested that an iron deficient status may predict poor maternal thyroid function in pregnant women.41 Researchers identified that in 365 pregnant women, poor maternal iron status predicted both higher TSH and lower total triiodothyronine (TT3) concentrations during pregnancy in an area of borderline iodine deficiency. The mechanism of action suggested that iron deficiency decreased circulating thyroid hormone concentrations, especially in the third trimester, likely through impairment of the haem- dependent thyroid peroxidase enzyme. Another double-blind clinical trial with 103 iron deficient adolescent girls who were treated with either 300 mg ferrous sulfate or placebo 5 times per week, for 12 weeks, showed that those in the ferrous sulfate group showed a significant difference in TT4 (total thyroxine), TT3, T3RU (triiodothyronine resin uptake) and rT3 (reverse triiodothyronine) concentrations. Results showed that supplementing with iron can improve some indices of thyroid function.

Dosage for this amazing Thyroid supplement.:

Take one capsule daily (which is free from artificial additives)with food or as recommended by your healthcare practitioner.

Recommended use: Hypothyroidism including abnormal thyroid function test, and/ or symptoms such as tiredness, being sensitive to cold, weight gain, constipation, depression, slow movements and thoughts, muscle aches and weakness, muscle cramps.

Safety: Thyroid conditions can have a variety of causes beyond nutritional deficiency; it is advised that people with suspected hypothyroidism should be under supervision of a health professional.

Hypothyroidism can be caused by excessive iodine above 300mcg daily, therefore it is advisable to assess dietary and supplemental iodine intake before use.

Due to risk of selenium toxicity with long-term intake of high doses above 1000mcg daily, selenium intake should not exceed 600 mcg per day.

Thyroid Complex with iodine and selenium which contribute to normal thyroid function and vitamins B1, B2 and B3 all contribute to the reduction of tiredness and fatigue. This supplement provides nutritional co-factors and olive leaf extract.

Take one capsule daily with food or as recommended by a qualified healthcare practitioner or healthcare professional.

One capsule provides

(as potassium iodide)(as selenomethionine)(as citrate)(as nicotinamide)(as thiamine HCl)

Ingredient Weight %EC NRV
  Iodine 200ug 133
  Selenium 200ug 364

Vitamin A (5000IU)

1500ug 94
  Zinc 15mg 150
  Vitamins B3 20mg 125
  Vitamin B1 20mg 1818
Vitamin B2 (as riboflavin) 20mg 1429

Olive leaf


Vitamin A (5000IU)