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Metabolic health

Glucose

The amount of sugar circulating in your blood at the moment the sample was taken, a snapshot, unlike HbA1c's three-month average.

Why it matters

Fasting glucose is one of the earliest signals of insulin resistance: it often drifts upward years before symptoms appear.

If it runs high

Elevated fasting glucose can reflect insulin resistance, prediabetes, stress hormones, or a sample taken too soon after eating.

If it runs low

Low glucose can cause shakiness, sweating, or confusion, and can follow long fasting, alcohol, or diabetes medication, persistent lows deserve medical review.

Reference ranges vary by sex, age, and laboratory, your BetterBuy Rx Labs report plots your value on the range that applies to you. A single out-of-range result is a prompt to talk to your clinician, not a diagnosis.

Related markers

See panels that test Glucose