The Omega-3 Index test measures of the amount of omega-3 EPA and DHA in the blood and delivers results as a percentage. An Omega-3 Index of 8% or higher is ideal. It represents fatty acid levels that are associated with the best states of health. But with up to 90% of Americans not getting the recommended daily minimum amounts of omega-3s, Index levels of 4% or lower are common. Raising a patient’s Omega-3 Index helps ensure they are getting enough EPA and DHA to fully support their health.