Factitious hypoglycemia is a dangerous condition where blood sugar levels drop critically low due to intentional or accidental intake of insulin or other antidiabetic medications. It is caused by external sources of insulin or sulfonylureas that suppress the body's natural insulin production. The C-Peptide, Serum test is the most important test for diagnosis because it distinguishes medication-induced hypoglycemia from natural causes.
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Factitious hypoglycemia is caused by the intentional or accidental intake of insulin or other antidiabetic medications like sulfonylureas. When external insulin enters the body, it lowers blood sugar to dangerously low levels while simultaneously suppressing the pancreas's natural insulin production. This differs from naturally occurring hypoglycemia where the body produces too much insulin on its own, or from diabetic medication taken as prescribed under medical supervision.
The C-Peptide, Serum test is the most important test for factitious hypoglycemia because it reveals whether low blood sugar is caused by external insulin or medication. C-peptide is a byproduct released when your pancreas naturally produces insulin. In factitious hypoglycemia, C-peptide levels will be abnormally low during a hypoglycemic episode because the external insulin or drugs suppress your body's natural insulin production. This critical distinction helps doctors identify medication misuse and determine the appropriate treatment approach rather than treating it as a natural metabolic disorder.
You should get tested if you experience repeated episodes of severe low blood sugar symptoms like shakiness, confusion, sweating, or fainting, especially if you have access to insulin or diabetes medications but don't have diabetes yourself. Testing is also important if you're a healthcare worker, family member of someone with diabetes, or if your doctor suspects medication-induced hypoglycemia after ruling out natural causes. Get tested immediately if you have unexplained hypoglycemia that doesn't match your medical history or prescribed treatment plan.
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What this means
Your testosterone levels are slightly below the optimal range. While this is not necessarily cause for concern, it may contribute to occasional fatigue, reduced motivation, or lower muscle mass over time.
Recommended actions
Increase resistance or strength training
Prioritize 7–8 hours of quality sleep per night, try to reduce stress
Include more zinc- and magnesium-rich foods (like shellfish, beef, pumpkin seeds, spinach)
Consider retesting in 3–6 months
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