It's hard to get enough sunshine when you don't have lots of sun or time to be outside.

Open a bottle of sunshine! Reach for Nature's Sunshine Vitamin D3.

Improve bone health and boost your immune system and mood all year long!

Vitamin D comes in two forms: D2 and D3. Of the two, D3 is more bioactive and offers a host of health benefits.

Vitamin D can be found in trace amounts in certain foods, primarily egg yolks, fatty fish, liver, and milk fat. However, vitamin D is more commonly acquired through supplementation.

The body synthesizes vitamin D3 from cholesterol and sunlight; which makes it difficult to obtain adequate amounts of vitamin D during cloudy or winter months. Vitamin D is the only vitamin whose "active form" is a hormone manufactured in the skin from the ultraviolet rays of the sun.

In the body, vitamin D plays an important role in absorbing and regulating blood levels of calcium and phosphorus, and helping to build strong bones. It works with other vitamins, minerals and hormones to promote bone mineralization.

Vitamin D supports both the innate and adaptive branches of the immune system. Research shows that vitamin D may help support a healthy immune system by regulating lymphocyte function, cytokine production and macrophage activity. Vitamin D is essential for the activation of immune cells needed to seek out and destroy infectious invading microbes. Without this activation, infections such as influenza and the common cold appear to be more severe and longer lasting.

Studies also show that Vitamin D influences mood. Plus, vitamin D plays a crucial role in growth and development, physical fitness, and the health of the nervous system and kidneys.

Research suggests that vitamin D levels in the elderly tend to be about half that of younger people. The elderly are more susceptible to vitamin D deficiencies as a result of insufficient vitamin D in their diets, from taking medications that disrupt vitamin D metabolism, or simply not getting enough sunlight. Others at a risk of vitamin D deficiency are alcoholics, those with malabsorption problems, and people who live in areas with little sunlight.

Vitamin D was discovered as researchers worked to end rickets, a bone disease in children, in the early 20th century. Sir Edward Mellanby discovered that cod liver oil—a source of vitamin A—could alleviate symptoms of rickets. Later, Professor Elmer McCollum tested cod liver oil without vitamin A. When it still prevented rickets, he assumed that a yet-undiscovered nutrient was responsible. He named this nutrient vitamin D.

In 1937, vitamin D3 was identified by former Nobel-prize-winner Adolph Windaus and his associate. They found that vitamin D3 formed in the skin after it was exposed to sunlight. In 1952, a team of researchers discovered that vitamin D did not actually put minerals into the bone, but rather mobilized calcium from the bone into the plasma. This led to the understanding of vitamin D’s role in maintaining serum calcium, which affects both skeletal strength and neuromuscular function.

Benefits:

• Helps build strong, healthy bones
• Supports both innate & adaptive immune function
• May help support healthy mood balance
• Supports the body's overall health
• Provides 100 mcg (4,000 IU) vitamin D per serving
• Non-GMO project verified & allergen-free

Ingredients:

100 mcg Vitamin D3 (cholecalciferol) per serving (2 tablets).

Quality Assured:

Nature’s Sunshine’s Vitamin D3 partner supplies us with a super-clean nutrient; one that is proudly allergen-free, vegan and non-GMO project verified.

Recommended Use:

Take 2 tablets daily with a meal.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.