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       #Post#: 7354--------------------------------------------------
       Is Fish Sperm Used in NPH Insulin
   DIR By: Road2HardCoreIron
       Date: August 23, 2026, 6:57 am
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       NPH (Neutral Protamine Hagedorn) insulin uses protamine, a
       protein that is traditionally isolated from the sperm (milt) of
       fish, such as salmon or trout.The Role of ProtamineIt binds with
       insulin to form a crystal structure.This slow-release bond makes
       the insulin last longer in the body.The "N" in NPH stands for
       Neutral, the "P" for Protamine, and the "H" for Hagedorn (the
       scientist who named it).Safety and AllergiesThe protein is
       purified heavily during manufacturing.People with severe fish
       allergies can sometimes have a rare reaction to protamine
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