Vitamin D & Omega-3 Index Test Kit (Subscription)

$114.00 every 6 months

Check your Omega-3 and vitamin D levels.


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Included in each Vitamin D*action Omega-3 test kit:

  • 3 lancets
  • 1 Vitamin D blood spot card
  • 1 Omega 3-Index blood spot card
  • 1 envelope for returning both cards
  • 1 gauze pad, 2 band aids, and 1 alcohol swab
  • Vitamin D literature

EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are two very important omega-3 fatty acids found in fatty fish and other marine sources, which are essential to our health. The Omega-3 Index is a measure of the amount of EPA and DHA in red blood cell membranes. The result is expressed as a percent of total RBC fatty acids, and is a long-term and stable marker of omega-3 status throughout the blood and tissues.

A higher Omega-3 Index has been associated with improved cognitive function and cardiovascular health, lower risk of dementia, lower risk of cancer, longer life, and a reduced relative risk for death from any cause, including COVID-19. Omega-3s are beneficial for normal vision, anti-aging, skin health, maternal health, immune function, brain health, heart health, normal liver function, joints and muscles, and more.

Experts recommend an Omega-3 Index of at least 8%; while individual levels of omega-3s vary across the globe, most countries and regions have levels that are considered low to very low. An analysis of the GrassrootsHealth cohort showed that 82% of participants had an Omega-3 Index below 8%, however, among those who completed two or more tests, 71% of those with an Omega-3 Index less than 8% increased their index after their first test. Take advantage of this opportunity to improve your Omega-3 Index!  Once you have your Omega-3 Index result, use the Omega-3 Index Calculator to determine an approximate additional DHA and EPA intake to help achieve your target index.

Learn more about the importance of measuring your Omega-3 Index and research involving the Omega-3 Index.