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Vitamin D3

Good for your thyroid?

The Sunshine Vitamin

This scientific research is for informational use only. The results reported may not necessarily occur in all individuals. Paloma Health provides this information as a service. This information should not be read to recommend or endorse any specific products.

In a Nutshell
  • Vitamin D is produced in the skin as a result of sunlight exposure, and helps to facilitate normal immune function and regulate the absorption of calcium and phosphorus.
  • Several studies show that hypothyroid patients often have low serum levels of vitamin D, which may cause musculoskeletal complaints.
The Research

Heals the gut

Leaky gut is a precursor to autoimmune disease like Hashimoto’s, which is often at the root of hypothyroidism. Vitamin D plays a significant role in helping heal the gut, nourishing the stem cells that seal and heal gaps in the gastrointestinal tract. Vitamin D helps to re-train T and B cell soldiers and can regulate inflammation and antibodies attacking the thyroid.


Decreases TSH

Vitamin D3 supplementation may help to reduce thyroid-stimulating hormone (TSH) levels. One randomized, double-blind, placebo-controlled study demonstrated that vitamin D supplementation among hypothyroid patients for 12 weeks improved serum TSH levels and calcium concentrations.

Risks of Vitamin D3 Consumption

Consuming too much vitamin D can cause toxicity. Vitamin D increases calcium absorption in the gut, so too much vitamin D can result in hypercalcemia (too much calcium in the blood). Hypercalcemia can cause nausea, vomiting, muscle weakness, neuropsychiatric disturbances, pain, loss of appetite, dehydration, excessive thirst, excessive urination, and kidney stones. Excessive sun exposure likely cannot result in vitamin D toxicity. The Tolerable Upper Intake Level (UL)—defined as the highest daily intake level that is likely to pose no adverse health effects—for adults is 100 mcg per day.

Recommend Intake of Vitamin D3

The Recommended Dietary Allowance (RDA) of vitamin D—or, the average daily level of intake sufficient to meet the nutrient requirements of nearly all healthy individuals—is 15 mcg for adult men and women ages 19 to 70, including women who are pregnant or breastfeeding. People over 70 are recommended 20 mcg per day.

Other Benefits of Vitamin D3

Supports bone health

Over time, bone density can decline, causing osteoporosis. Osteoporosis is mostly related to inadequate calcium intake, but vitamin D deficiency can contribute to osteoporosis by reducing calcium absorption. [1]. Bone health also requires support from muscles, and vitamin D supports the normal growth and development of muscle fibers. 

Dietary Sources of Vitamin D

Very few foods actually contain vitamin D, naturally. Fatty fish like trout, salmon, tuna, and mackerel and fish liver oils are some of the best sources. What an animal eats affects the amount of vitamin D in its tissues. Beef liver, cheese, and egg yolks also have small amounts of vitamin D3.

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Hypothyroidism is a long-term commitment and we’re committed to you. Schedule a free, no-obligation phone consultation with one of our intake specialists to find out more.

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