Understand your biomarkers.

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.

Fasting glucose measures your blood sugar after 8+ hours without eating. Elevated levels may suggest insulin resistance, prediabetes, or diabetes.

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 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 is often called 'bad' cholesterol. High levels over time may increase cardiovascular risk. Diet and lifestyle changes can often lower it significantly.

HDL is the 'good' cholesterol that helps remove LDL from arteries. Higher HDL is protective — low levels are linked to increased cardiovascular risk.

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 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 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 cells are your immune system's frontline. High WBC often indicates infection or inflammation; low WBC may suggest a weakened immune response.

Triglycerides are the most common fat in your blood. High levels often track with insulin resistance and refined-carb intake — and are linked to elevated cardiovascular risk.

ALT is a liver enzyme that leaks into the blood when liver cells are stressed or damaged. Mild elevations are common and often relate to fatty liver, alcohol, or medications.

AST is an enzyme found in liver, muscle, and heart. Elevated AST can signal liver damage, but it also rises after intense exercise or muscle injury.

Vitamin B12 is essential for nerve function and red blood cell production. Deficiency is common in vegetarians, older adults, and people on acid-blocking medications.

Folate is a B vitamin essential for cell division and red blood cell formation. Deficiency causes fatigue and anemia, and is especially risky during pregnancy.

Magnesium is involved in over 300 enzyme reactions including muscle, nerve, and heart function. Mild deficiency is widespread and often underdiagnosed.

Potassium controls heart rhythm, muscle contractions, and fluid balance. Both high and low levels can be dangerous and need prompt attention.

Sodium controls fluid balance and blood pressure. Low sodium (hyponatremia) is the most common electrolyte disorder in hospitalized patients.

CRP is a marker of inflammation. Mildly elevated CRP is associated with increased cardiovascular risk; very high CRP often signals active infection or autoimmune flare.

Testosterone is the primary male sex hormone, but it matters for both sexes. Low testosterone affects energy, mood, libido, muscle mass, and bone density.

Cortisol is your primary stress hormone. Chronically elevated cortisol is associated with weight gain, poor sleep, anxiety, and metabolic problems.

Free T3 is the active thyroid hormone that drives metabolism. Low free T3 can cause fatigue, cold intolerance, and slow metabolism — even when TSH looks normal.

Free T4 is the inactive thyroid hormone that gets converted to active T3 as needed. Low free T4 with high TSH confirms hypothyroidism.

eGFR estimates how well your kidneys filter blood. Declining eGFR is the earliest sign of chronic kidney disease, often before any symptoms appear.

BUN measures nitrogen waste from protein breakdown. Elevated BUN can indicate dehydration, high protein intake, or kidney issues — best interpreted alongside creatinine.

Calcium is essential for bones, muscles, nerves, and heart rhythm. Elevated blood calcium often points to parathyroid issues, vitamin D excess, or rarely cancer.