No. The result of the Omega-3 Index cannot be predicted solely on the basis of how much fish a particular individual eats or whether he or she takes dietary supplements containing omega-3 fatty acids. In fact, age, gender, weight, diet, genetic predisposition, smoking, medications, or general health affect the specific need for omega-3 fatty acids. The only way to know if you are getting enough Omega-3s is to measure the fatty acid profile from your blood.

The Omega-3 Index is a measure of the content of the two main omega-3 fatty acids EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) in the membranes of red blood cells.
It is calculated as the sum of the EPA and DHA content and the total content of other fatty acids in the erythrocyte membranes. The result is expressed as a percentage.
The omega-3 index reflects the body's omega-3 status over the last 3-4 months, similar to how glycated hemoglobin HbA1C indicates long-term blood glucose levels. A higher proportion of EPA and DHA is an indicator of better health, with the optimal range for the Omega-3 Index being between 8-12%.

The omega-3 index and the omega-6 : omega-3 ratio are different indicators that measure the fatty acid profile as part of our overall health assessment.
The Omega-3 Index is a risk factor for cardiovascular disease that has been cited and published in a number of independent studies and research. We believe that the Omega 3 Index deserves more attention because it addresses a serious problem of our time, which is the lack of EPA and DHA in our diets.

The test can be done for adults as well as for children. However, the recommended target level for Omega 3 Index differs for adults and for children. Younger people tend to have lower Omega 3 Index and studies suggest that the target level for children is 6%.

We recommend doing the Omega 3 Index test in the morning on an empty stomach. The resulting level of omega 3 in the blood sample is influenced by the amount of fatty acids in the blood, which varies depending on how much fat is ingested in the diet.
Thus, a blood sample taken after an overnight fast may give a different Omega 3 Index result compared to a blood sample taken immediately after a meal. If you add additional fatty acids to the blood sample, the percentage of EPA and DHA will decrease slightly. However, studies suggest that, on average, the Omega 3 Index before a meal differed from the Omega Index after a meal by less than 4%, which is a very small difference.