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Frequently Asked Questions

The ingredients in Prevamune have been studied and shown to boost the immune system, reduce upper respiratory tract infection systems, and shorten duration of colds & flu.
For best results, take 3 capsules per day for two weeks as a loading phase, then maintain with 1-2 capsules per day. For those with compromised immune systems or high risk, take 3 capsules daily ongoing. Always consult with your healthcare professional before taking any dietary supplement. Do not exceed recommended dosage.
This depends on the individual, but studies have shown potent anti-viral properties at doses of 10,000 IU per day or more. Safety studies have also been conducted at doses up to 60,000 IU per day with no issues.

Study Overview: Daily intake of high dose vitamin D3 ranging from 20,000 to 60,000 IU per day in 3 subjects for a period of 2 to 6 years. Peak 25OHD blood levels were 225 ng/ml, 161 ng/ml, and 164 ng/ml. No adverse events related to vitamin D3 were noted in any subject and blood calcium and parathyroid hormone levels remained normal throughout.

Reference: McCullough PA, Amend J. Results of daily oral dosing with up to 60,000 international units (iu) of vitamin D3 for 2 to 6 years in 3 adult males. The Journal of Steroid Biochemistry and Molecular Biology. 2017;173:308-312
  • For individuals taking 3 capsules per day, 1 bottle will last 30 days.
  • For individuals taking 2 capsules per day, 1 bottle will last 45 days.
  • For individuals taking 1 capsule per day, 1 bottle will last 90 days.
No, although a multivitamin may contain a few of these ingredients, they are typically not at levels required for effective immune support. Additionally, multivitamins do not contain ingredients such as Wellmune® which is a powerful, patented compound with numerous clinical trials showing its efficacy in macrophage activation and immune support.
When the body senses it is under attack it releases cytokines, a broad group of signaling proteins to fight off foreign invaders. When an overabundance of these cytokines are present in the body, it elicits a cytokine storm and the body begins to attack itself. Prevamune contains high levels of Vitamin D3 which scientists believe may reduce cytokine storm activity. Furthermore, Prevamune contains Wellmune® a specific form of Beta Glucan that increases the production of neutrophils which supports immune function without causing a cytokine storm.
Not only do we test each batch through independent 3rd party laboratories, but we also make the test results available to the public HERE so you can be 100% confident in the quality of Prevamune! 

Each batch of Prevamune is tested for the following:
  • Purity and potency
  • Heavy Metals: Mercury, Lead, Arsenic, Cadmium
  • Microbials: Yeast, Mold, Salmonella, E. coli, Staph
  • Over 70+ pesticides