Vitamin D3 2,000 IU

Vitamin D3 is a fat-soluble vitamin critical to multiple aspects of human health. Most widely recognized for its role in calcium and phosphorus metabolism and bone mineralization, vitamin D3 (cholecalciferol) also supports healthy muscle function, immune regulation, and overall well-being. Unlike many nutrients that are difficult to absorb, vitamin D synthesis occurs in your skin when exposed to ultraviolet B (UVB) radiation from sunlight, making sun exposure a major source for most people. However, in many climates—especially during autumn and winter months—sunlight is insufficient for optimal production, leading to widespread insufficiency among adults. (Source: National Institutes of Health Office of Dietary Supplements)

Why Vitamin D3 (Cholecalciferol)

Vitamin D3 (cholecalciferol) is the biologically preferred form of vitamin D because it is the same form produced naturally in the skin. Clinical evidence shows that vitamin D3 is more effective than vitamin D2 (ergocalciferol) at raising and maintaining serum 25-hydroxyvitamin D levels, the primary marker used to assess vitamin D status.

Because vitamin D is fat-soluble, delivery in an oil-based softgel helps enhance absorption. This formulation includes soybean and corn oils as lipid carriers, which align with established nutrient-delivery practices for fat-soluble vitamins.

Evidence-Informed Benefits

Bone and Skeletal Health

Vitamin D supports normal calcium absorption in the intestine and helps maintain appropriate serum calcium and phosphorus concentrations. Adequate vitamin D intake is essential for bone mineralization and contributes to long-term skeletal health.

Muscle Function

Vitamin D receptors are present in skeletal muscle tissue. Adequate vitamin D status supports normal muscle contraction, coordination, and neuromuscular performance. Insufficient levels have been associated with reduced muscle strength in some populations.

Immune System Function

Vitamin D plays a role in immune regulation through its interaction with immune cell receptors. While not a treatment for illness, maintaining sufficient vitamin D levels supports normal immune system function.

Seasonal Sunlight Considerations

During periods of limited sunlight exposure, particularly in colder regions and winter months, endogenous vitamin D production declines. Supplementation can help maintain consistent intake when sun exposure is insufficient. While vitamin D is not a treatment for mood disorders, reduced sunlight exposure and lower vitamin D status may coincide during seasonal changes.

Ingredient Profile

Active Ingredient:

Vitamin D3 (as cholecalciferol) — 2,000 IU per softgel

Other Ingredients:

Softgel (gelatin, glycerin, water), soybean oil, corn oil

Product Information

1. Manufacturer Country: USA
2. Product Amount: 100 softgels
3. Gross Weight: 0.1 lb (45 g)

Suggested Use

As a dietary supplement, adults take one (1) softgel capsule daily, or as directed by a healthcare professional. For optimal absorption, vitamin D3 is best taken with a meal containing dietary fat.

Warnings and Storage

1. Keep out of reach of children.
2. Do not use if the safety seal is damaged or missing.
3. Store in a cool, dry place and away from direct light.

Individuals who are pregnant or nursing, taking medications, or who have a medical condition should consult a healthcare professional prior to use. Do not exceed the recommended dose unless directed by a healthcare provider.

Regulatory Disclosure

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.