Project Description

Your One-Stop Bulk Powder Supplier
Gensei Global Inc

Vitamin D

Vitamin D

Health benefits

  • Highly bioavailable

  • Joint & bone health
  • Skin health
  • Weight management

Technical facts

  • Excellent flowing properties
  • Superior wetability
  • Instant dispersibility
  • Solubility in cold water
  • Food grade
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Vitamin D is a fat-soluble vitamin that is responsible for increasing and damaging the absorption of calcium, magnesium and phosphate, as well as a variety of biological effects.

~ Some of the Many Benefits ~

~ Bone Health: Vitamin D is crucial for the absorption of calcium and phosphorus, essential minerals for maintaining strong and healthy bones.

~ Immune System Support: Plays a pivotal role in supporting the immune system, helping the body defend against infections and illnesses.

~ Hormone Health: Vitamin D is a key player in hormonal balance, influencing insulin, testosterone, and estrogen levels.

Remember, maintaining levels of Vitamin D through sunlight, diet, & supplements is essential to optimize health.

We offer the following different specifications:

Vitamin D3 100/200 CWS Beadlet
Vitamin D3 500/850 CWS Beadlet
Vitamin D3 1.O MIU/G OiI
Vitamin D3 4.O MIU/G Oil I
Vitamin D3 40 MIU/G Crystal
Vitamin D2 40 MIU/G Crystal

Vitamin D: The Sunshine and the Key to Health

What is Vitamin D?

Vitamin D, known as the sunshine vitamin, is a fat-soluble vitamin that is essential for human health. It not only plays a key role in calcium and phosphorus metabolism, but also affects several important physiological processes.


1. Absorption of calcium and phosphorus
Vitamin D promotes the absorption of calcium and phosphorus in the intestine. These two minerals are essential for bone health, and the effects of vitamin D help maintain the strength and health of bone structure and prevent osteoporosis and fractures.

2. Immune system regulation
Vitamin D plays an important role in regulating the function of the immune system. It can help reduce inflammatory responses, enhance the body’s resistance to infection, and help prevent and manage autoimmune diseases.

3. Cardiovascular health
Research shows that vitamin D is closely related to cardiovascular health. Adequate vitamin D levels may help reduce the risk of cardiovascular disease, including high blood pressure, heart disease, and stroke.

4. Mental health
Vitamin D is also associated with mental health, and adequate vitamin D levels may help improve mood and prevent mental health issues such as depression.

5. Cancer Prevention
Although research is still ongoing, some studies suggest that vitamin D may have potential benefits in preventing certain cancers, particularly breast, colon, and prostate cancers.

Sources and Intake Recommendations for Vitamin D

There are two main sources of vitamin D: synthesis through skin exposure to ultraviolet light (UV-B) and dietary intake and supplements. The recommended daily intake varies depending on individual age, health status, and geographic location. General recommendations:

Children and adults: About 600-800 international units (IU) of vitamin D are needed per day, and some people may need higher doses.

Older people: Due to decreased skin synthesis capacity, more vitamin D intake may be needed.

Major food sources of vitamin D include fatty fish (such as salmon, cod, tuna), cod liver oil, egg yolks, and foods fortified with vitamin D (such as milk, cereals, juices).

Vitamin D Supplementation

In some cases, such as lack of exposure to sunlight, living in polar regions, excessive indoor activities, or specific health conditions, additional vitamin D supplements may be needed.


1. What problems can vitamin D deficiency cause?
Osteomalacia (bone disease caused by vitamin D deficiency): includes scurvy and osteoporosis.
Muscle atrophy and osteoporosis: Vitamin D deficiency may lead to weakened muscle strength and bone loss.
Impaired immune system: may increase the risk of infection and inflammation.
Cardiovascular problems: may increase the incidence of high blood pressure, heart disease and stroke.

2. What are the main sources of vitamin D?
Sunlight: Vitamin D can be synthesized through skin exposure to ultraviolet light (UV-B). The daily recommended exposure time and intensity vary depending on geographic location, season and individual skin color.
Food: The main sources of vitamin D in food include fatty fish (such as salmon, tuna, cod), cod liver oil, egg yolks, dairy products and fortified cereals, juices, etc.

3. Who especially needs additional vitamin D supplementation?
Elderly people: The skin’s ability to synthesize is reduced and more vitamin D is needed.
People living in high latitudes or places with less sunlight.
People who spend more time indoors.
People with darker skin, because the skin synthesizes vitamin D less efficiently.
People with certain chronic diseases, such as intestinal absorption problems or kidney disease.

4. What are the effects of excessive vitamin D?
Long-term high-dose vitamin D supplementation may lead to vitamin D toxicity, manifested as hypercalcemia, which may cause kidney damage and other health problems. Therefore, when supplementing vitamin D, you should follow the advice of medical professionals and avoid excessive intake.

Who is the best Vitamin D suppliers?

If you are looking for a one-stop shop for supplement ingredients like VITAMIN D, the best source for bulk purchase is Collagensei. Our company offers a wide variety of products at an affordable price. It is also a registered ingredient supplier with the FDA and is a well-known product manufactures and traders.

For more information about Collagensei, you may visit our website at Technical support is also available when checking our page.


Vitamin D is an essential nutrient for maintaining overall health. It is not only related to bone health, but also plays an important role in immune regulation, cardiovascular health, mental health and cancer prevention. Ensuring adequate vitamin D intake through proper sunlight exposure and diet helps support the normal function and health of various body systems. If necessary, consult a healthcare professional for personalized advice and guidance.