When the body has too much insulin floating around for too long, cells stop listening to it to protect themselves from damage. This forces the pancreas to pump out even more insulin, creating a harmful cycle.
Evidence from Studies
Supporting (2)
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The study shows that keeping insulin levels high for 7 days makes the rats' bodies less responsive to insulin - their cells took in 39% less glucose than normal. This matches part of the claim that chronic high insulin causes insulin resistance. However, the study doesn't test whether this happens to protect cells from damage or if it causes the body to make even more insulin.
Hyperinsulinemia induces insulin resistance and immune suppression via Ptpn6/Shp1 in zebrafish.
The study shows that giving zebrafish high amounts of insulin makes them insulin-resistant, which supports the claim's main idea. However, it doesn't prove the specific part about cells reducing glucose uptake to protect against toxicity or the cycle of compensatory hyperinsulinemia.
Contradicting (0)
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Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.