Understand Your Biomarkers
Plain-language guides for the biomarkers that matter most. Learn what each one measures, what affects it, and which foods may help.
Hemoglobin
Hemoglobin is the protein in red blood cells that carries oxygen throughout your body. Low levels are commonly linked to fatigue, weakness, and iron deficiency.
Glucose (Fasting)
Fasting glucose measures your blood sugar after 8+ hours without eating. Elevated levels may suggest insulin resistance, prediabetes, or diabetes.
Vitamin D
Vitamin D is essential for bone health, immune function, and mood. Deficiency is extremely common — especially in winter months or in people with indoor lifestyles.
Ferritin
Ferritin is your body's iron storage protein. Low ferritin means depleted iron stores — often the earliest sign of iron deficiency, even before anemia develops.
LDL Cholesterol
LDL is often called 'bad' cholesterol. High levels over time may increase cardiovascular risk. Diet and lifestyle changes can often lower it significantly.
HDL Cholesterol
HDL is the 'good' cholesterol that helps remove LDL from arteries. Higher HDL is protective — low levels are linked to increased cardiovascular risk.
TSH (Thyroid Stimulating Hormone)
TSH tells your thyroid to produce thyroid hormones. High TSH suggests the thyroid isn't making enough hormone (hypothyroidism). Low TSH may indicate an overactive thyroid.
Creatinine
Creatinine is a waste product filtered by your kidneys. Elevated levels may indicate reduced kidney function, though it can also rise temporarily from high-protein intake or intense exercise.
HbA1c (Glycated Hemoglobin)
HbA1c shows your average blood sugar over the past 2–3 months. It's the gold standard for diagnosing diabetes and tracking long-term glucose control.
White Blood Cell Count (WBC)
White blood cells are your immune system's frontline. High WBC often indicates infection or inflammation; low WBC may suggest a weakened immune response.