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Vitamin D is made in the skin and provided in supplements and foods such as oily fish and eggs. Both are converted in the liver to form 25(OH)D3 which is the form of vitamin D in the blood, measured by this test. Your levels of 25(OH)D3 levels shows your body’s production plus your intake.
Vitamin D deficiency is linked with many chronic diseases, including autoimmune diseases, diabetes, cardiovascular disease, cancer as well as cognitive decline. Many diseases are more prevalent in the Northern hemisphere due to lack of direct sunlight.
Optimal levels of 25(OH)D3 are certainly above 32ng/mL (80 nmol/l) and ideally over 40ng/ml (100nmol/l)
This measures EPA and DHA.These two important omega-3 fats found in seafood, are essential for brain health. The Omega-3 Index measures the amount of EPA and DHA in red blood cells (RBC). The result shows the % of total RBC fats, and is a long-term, stable marker of omega-3 status.
A higher Omega-3 Index has been associated with optimal cognitive function and cardiovascular health and redcued risk of many diseases. 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.
Experts recommend an Omega-3 Index of at least 8%.
This measures methylation, your need for B vitamins. Faulty methylation damages the brain and circulation and is the single best indicator of cognitive health. Homocysteine goes up when methylation is impaired, indicating a greater need for B vitamins, especially B6, B12 and folate.
Lowering homocysteine has been shown to reduce brain shrinkage by up to 73% in those with adequate omega-3 DHA. A lower homocysteine level is associated with less cardiovascular and stroke risk, osteoporosis, depression, cognitive decline. Homocysteine is a biomarker for over 100 diseases, especially mental and neurological diseases. You can have raised homocysteine due to poor B12 absorption.The only way to know is to test.
Above 11 µmol/L is associated with accelerated brain shrinkage. 7 µmol/L or less is probably optimal. We recommend supplementation with B vitamins if your level is over 10 µmol/L.
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