Biomarkers
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- by Elle Penner, MPH, RD
What is the ferritin test? The ferritin test measures the amount of ferritin, a protein that stores iron, in your blood. The test can be used to help diagnose iron deficiency anemia, hemochromatosis, liver disease, and Adult Still’s disease [1]. High...
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- by Elle Penner, MPH, RD
What is the VLDL cholesterol test? VLDL cholesterol is a test that measures the amount of very-low-density lipoproteins in your blood. Most labs estimate your VLDL based on your triglyceride level since VLDL particles carry mostly triglycerides through your blood and there...
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- by Elle Penner, MPH, RD
What is the homocysteine test? A homocysteine test is a blood test that measures the amount of homocysteine, an amino acid, in your blood. Higher levels of homocysteine may indicate a B vitamin deficiency and have been linked with increased risk...
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- by Elle Penner, MPH, RD
What is a LDL test? LDL cholesterol is a test that measures the amount of the low-density lipoproteins (“bad cholesterol”) in your blood. Although cholesterol serves several important functions, high LDL cholesterol is a risk factor for heart disease because it...
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- by Elle Penner, MPH, RD
What is the test? HDL cholesterol is a test that measures the amount of high-density lipoproteins (“good cholesterol”) in your blood. What does it measure? This test measures the amount of protective HDL cholesterol in your blood. HDL promotes heart health by removing...
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- by Elle Penner, MPH, RD
What is a total cholesterol test? A total cholesterol test measures the amount of cholesterol found in your blood. Cholesterol is a waxy substance in the blood that is used to create new cells, hormones, and vitamin D. Although cholesterol serves...
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- by Elle Penner, MPH, RD
What is a triglyceride test? A triglycerides test measures the amount of triglycerides, a type of fat, in your blood.What does a triglyceride test measure? This test measures the level of triglycerides in your blood. They originate from fatty foods like butter,...
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- by Elle Penner, MPH, RD
What is an A1c test? The HbA1c (Hemoglobin A1c) test is a blood test that measures your average blood sugar level over the last 2-3 months.What does an A1c test measure? When sugar (glucose) builds up in your blood, it binds to...
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- by Elle Penner, MPH, RD
What is a vitamin D test?A vitamin D test measures the amount of 25-hydroxyvitamin D in your blood and is used to assess vitamin D status. Vitamin D is a fat-soluble vitamin that plays important roles in bone health, calcium...