Vitamin D3 – 5000 IU


Pure Nootropics Vitamin D3 helps the body regulate calcium and phosphorus, supplementation promotes healthy bones, cognitive function, and has been shown to help prevent diseases.

  • Cognitive: shown to increase executive function (reference); deficiencies in Vitamin D linked to low mood and reduced cognitive performance in elderly (ref)
  • Cognitive: shown to mitigate age related cognitive decline in rats (ref)
  • Cardiovascular: strong relationship between Vitamin D levels and cardiovascular diseases including diabetes (ref)
  • Bone: Reduces risk of fractures and of falls (ref)(ref)
  • Disease Prevention: Vitamin D shown to have positive impact on genes linked to infectious diseases, autoimmune diseases, cardiovascular disease and cancer.  (ref)

90 x 1,000mg softgels (90 servings)

Only 15 left in stock



The benefits of supplementing Vitamin D3 are most clearly seen in individuals that do not get prolonged exposure to sunlight (as exposure to sunlight produces Vitamin D in the body naturally). It is theorized that a majority of individuals are deficient in Vitamin D; unfortunately a blood test is required to identify if an individual is deficient in Vitamin D. Vitamin D helps the body absorb calcium and phosphorus which promotes healthy bones, teeth, and muscles. Additionally Vitamin D was studied in healthy people and is shown to have a positive impact on genes linked to infectious diseases, autoimmune diseases, cardiovascular disease and cancer. Studies have shown that Vitamin D deficiencies are associated with higher risks of the above diseases.


1 softgel capsule daily. Do not exceed 1 softgel daily unless recommended by your physician.


According to the Mayo Clinic hypervitaminosis D (also known is Vitamin D toxicity) occurs after several months of taking a mega dose of 50,000 IU of Vitamin D3 daily. Individuals supplementing with Vitamin D3 should consider taking a Vitamin K2 supplement, as it is responsible for moving calcium around the body and therefore helpful in preventing calcium buildups and hypervitaminosis D.

Full Analysis

Vitamin D is an essential micronutrient associated with a wide range of benefits, including increased cognition, immune health, bone health and overall well-being.

  • Reduces incidence of falls and bone breaks in the elderly (reference)
  • Supplementation shown to reduce risk of Alzheimer’s Disease (ref)
  • Increase in overall functionality in elderly or injured (ref)
  • Can reduce risk of influenza and increase immunity (ref) (ref)

Vitamin D Benefits

Vitamin D supplementation is associated with many benefits including bone health, increased immunity and increased cognition. Research shows supplemental vitamin D can also reduce the risk of cancer, heart disease and multiple sclerosis.
Vitamin D is produced from cholesterol, given there is enough UV light from sun exposure. Many are deficient in vitamin D because there is only a sufficient amount of UV sunlight when the UV index is 3 or above. Such an index only occurs year-round at locations near the equator, between the 37th parallels.

Vitamin D Studies & Side Effects
Studies show that approximately one billion people worldwide having a deficiency in Vitamin D. Research indicates that supplementing Vitamin D greatly decreases risk of falls and bone breaks by stimulating calcium deposition in bones, making them stronger and healthier. One study looked at vitamin D levels and cognitive performance in more than 3,100 men aged 40 to 79 and concluded that men with lower vitamin D levels exhibited slower information-processing speed.

Thus far, it appears the majority of research conducted on Vitamin D centers around bone and joint health as well as cognitive health,

Buy Vitamin D
Vitamin D can be purchased through many in-store and online retailers. Pure Nootropics does have a reputation for high quality products, however, our Vitamin D contains 5000 IU of D3, where as many companies include a much lower dose. The reputation of the company you buy from matters so keep this in mind.


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