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Science-Based Health Benefits of Vitamin D

  • Research Team
Categories: ingredients
Science-Based Health Benefits of Vitamin D

Vitamin D, also known as vitamin D3 and cholecalciferol, is a very important vitamin that can function like a hormone on every cell in the body. It’s made by the body from cholesterol when a person’s skin is exposed to the sun. However 42% of adults in the United States are deficient.

Vitamin D is included in Thyroid SupportBlood Sugar SupportImmune Support and Magnesium Complex by Beyond Vita.

1. Improves Mood and Depression

Depression is the leading cause of disability among young Americans and low levels of vitamin D have been associated with a greater risk for depression.1 Vitamin D supplementation has also been shown to improve depression.2,3

A 2013 observational study found a 49% lower suicide risk in people with normal levels of vitamin D compared to people with low levels.4

In a meta-analysis of 7 randomized and controlled trials, researchers concluded that vitamin D supplementation may be effective in reducing depressive symptoms in patients with clinically significant depression.5

Researchers in a 2008 randomized double-blind trial on 441 participants concluded that vitamin D supplementation appears to alleviate depressive symptoms.6

Vitamin D may help improve the symptoms of depression.

2. Thyroid Health

Normal levels of thyroid hormone are required for maintaining a healthy weight and metabolism.

Vitamin D deficiency has been shown to be associated with hypothyroidism in a 2013 study.7 Additionally, patients with autoimmune thyroid disorders have low levels of vitamin D and researchers claim vitamin D supplementation may improve symptoms.8

Researchers in another study concluded that vitamin D deficiency was significantly associated with autoimmune thyroid disease in pre-menopausal women.9

Vitamin D may improve thyroid health in people with low vitamin D levels.

3. Helps Lower Blood Sugar

Vitamin D deficiency has been shown to have a negative effect on the cells that produce insulin called beta cells. Additionally, vitamin D has been shown to have a positive effect on insulin sensitivity.10,11,12

Researchers in a 2008 study concluded that normal vitamin D levels provide protection against developing type 2 diabetes.13

Vitamin D may help lower blood sugar by improving beta cell function and insulin sensitivity.

4. Immune Health

Vitamin D deficiency can impair immune function and lead to a poor level of resistance to infection.14

A 2015 meta-analysis of 15 studies involving a total of 3,998 patients found that a low vitamin D level was significantly associated with an increased risk of tuberculosis.15 Another review and meta-analysis concluded that vitamin D supplementation may be useful as a combination therapy in patients with tuberculosis.16

Vitamin D deficiency has also been shown to be associated with a higher risk of mortality in patients with AIDS.17

In another study, researchers found that vitamin D can improve T cell function and they concluded that vitamin D is a key factor in increasing immunity.18

Vitamin D may help increase the strength and activity of the immune system.

5. Stronger Bones

Vitamin D deficiency is a major cause of osteoporosis.19 Additionally vitamin D supplementation may help increase bone mineral density and when supplemented with calcium it can decrease fracture risk.20

Researchers have also found that vitamin D supplementation is effective at preventing bone loss in post-menopausal women.21

Vitamin D may help improve bone strength by increasing bone mineral density.


Vitamin D is an essential vitamin that may help improve thyroid health, blood sugar levels, immune system function and mood in addition to other benefits.*

We recommend these Beyond Vita products:
Thyroid Support
Blood Sugar Support
Immune Support
Magnesium Complex
They include the best science supported natural ingredients including vitamin D and are backed by our 90-day 100% satisfaction guarantee.