Published on February 3, 2021
Study shows those with the highest Omega-3 Index had a 44% lower risk of cognitive impairment
Several nutrients have shown promise in the prevention of cognitive impairment, Alzheimer’s disease, and other dementias. Studies have shown protective benefits from vitamin D, magnesium, probiotics, B vitamins, and omega-3 fatty acids. Reviews of the research on omega-3s specifically have shown improved general cognitive performance, attention, and processing speed with both EPA and DHA, and improved memory function with DHA.
Omega-3s and Brain Health
Approximately 8% of the brain’s weight is comprised of omega-3 fatty acids. These fatty acids are found within the neural membranes, helping with key brain function such as electrochemical transmission and signal reception. In addition, they are thought to protect from oxidative stress, inflammation, and cumulative destruction. EPA and DHA are two omega-3 fatty acids known to play a key role in several aspects of brain health, including mechanisms involved in memory and cognition. The amount of these omega-3s present in your brain could be the difference between whether you succumb to injury or ward off the inflammation or attack.
In 2016, results from a study assessing the association between Omega-3 Index, a biomarker of EPA and DHA status, and cognitive decline among older adults were published. This study included 720 participants aged 68 to 92 years old and assessed four cognitive domains: orientation, memory, attention, and language.
What were the findings of the study?
Participants with the highest Omega-3 Index levels (greater than 6.8%) had a 44% lower risk of cognitive impairment compared to participants with the lowest Omega-3 Index levels (less than 5.7%) (P=0.01).
This association remained consistent after adjusting for sex, age, education, metabolic risk factors (obesity, hypertension, high cholesterol, smoking, and physical activity), depression, and anxiety.
How do you know if your omega-3 levels are supportive of cognitive health?
Measure your Omega-3 Index! The optimal range for the Omega-3 Index is suggested to be 8% or more. Less than 4% is undesirable, and 4-8% is in the intermediate risk zone. The majority of the US and Canadian populations are around 4%, while Japanese are typically above 8% due to the amount of fresh fish in their daily diet.
After you test and receive your Omega-3 Index results, we encourage you to use the Omega-3 Calculator to determine an estimated amount of how much more EPA+DHA you will need to reach 8% (or other desired goal). EPA+DHA is found in fish and many omega-3 supplements, but be sure you check how much EPA+DHA is in the specific types of fish you eat and the omega-3 supplements you take to determine how much of each you may need to consume.
While studies have shown that it is possible to achieve a higher Omega-3 Index through diet alone, it may be difficult to reach the recommended level of 8% or higher without supplementation.
Make Sure You are Getting Enough TODAY!
By joining the GrassrootsHealth projects, you are not only contributing valuable information to our study, but you are also gaining knowledge about how you could improve your own health through measuring and tracking your nutrient status, and educating yourself on how to improve it. Do you know what your status of vitamin D, omega-3s, and other essential nutrients is? Could your levels be improved? Test now to find out!
We now have a NEW GIFTING SERVICE that allows you to quickly send ‘Gift Cards’ to friends, family and coworkers who you consider might need immediate access to testing, and to Claim the Joy of Your Health TODAY. Give the gift today!
What does the Research Say about Vitamin D & COVID-19?
It’s TIME to start saving lives! If you can help PREVENT the majority of the death, it’s time! What’s it costing you/us not to take action NOW?
There is much published research that supports a clear link between vitamin D and COVID-19 showing that higher vitamin D levels are related to:
Be sure to educate yourself on the benefits and importance of vitamin D for immune health, and take steps to ensure you and your loved ones are getting enough.
You can review all of the COVID-19 and immune health information we have shared on this page.
What Does it Take YOU to Get Your D to 40 ng/ml (100 nmol/L)?
Did you know your health could be greatly affected by making sure you have a vitamin D level of at least 40 ng/ml (100 nmol/L)? Help us help you.
STEP 1 - Do you know what your vitamin D level is? If not, be sure to test today to find out.
STEP 2 – Determine your target level. Are you at your target level? Experts recommend a level of at least 40-60 ng/ml (100-150 nmol/L).
STEP 3 – Need to boost your level? Use the D*calculator to see how much vitamin D it may take to reach your target. Opt for the Loading Dose for a quicker boost.
STEP 4 – Optimize how your body absorbs and utilizes vitamin D with co-nutrients and these simple steps.
STEP 5 – Re-Test! This is an important step to make sure you have reached your target level, and to ensure you are not taking too much! Re-testing after 3-4 months is recommended.
STEP 6 – Adjust, Repeat…
Give your immune system the nutrients it needs to support a healthy you and protect yourself from unnecessary diseases, especially COVID-19.
The first Randomized Controlled Trial on vitamin D and COVID-19 has shown a 96% lower risk of ICU admission for those receiving vitamin D (as 25(OH)D to quickly boost vitamin D blood levels) along with the standard treatment, compared to those receiving standard treatment alone.
These results support many previous observational studies showing a relationship between vitamin D levels and intake and COVID-19 severity.
GrassrootsHealth Nutrient Research Institute has launched the new Immune Boost project with the use of our myData-myAnswers nutrient health system that nearly 15,000 people are already using for their health. Specific markers that influence immune health are suggested for testing as part of this project including:
- Vitamin D
- Omega-3 Index
- Essential elements magnesium, selenium, and zinc
Our goal is to demonstrate how one can use the Nutrient Research Model established by Dr. Robert Heaney to show the effect of vitamin D serum levels of at least 40 ng/ml (100 nmol/L) on risk reduction for all ethnicities in the population. Status and intake of other nutrients will also be analyzed for any type of relationship to immune status and symptom severity. Join the project today!
Please let us know if you're interested in helping sponsor this project.
Through GrassrootsHealth Nutrient Research Institute, you can also test your essential elements magnesium, copper, zinc and selenium, toxins such as lead, mercury and cadmium, as well as your omega-3 levels, inflammation levels and thyroid stimulating hormone (TSH) level. Find out your levels today! Log on to the test selection page (click the link below) to get your tests and see for yourself if your levels can be improved.
Make sure you track your results before and after, about every 6 months!
How can I track my nutrient intake and levels over time?
To help you track your supplement use and nutrient levels, GrassrootsHealth has created the Personal Health Nutrient Decision System called
For each specific supplement, you can track what days you take it, how much, and many other details. This will help you know your true supplemental intake and what patterns of use work for you to reach and maintain optimum nutrient levels. Check it out today!