Having had the fat removed from something, usually food or a material.
From de- + fat + -ed (past participle). Emerged in food science and industrial chemistry as a technical term describing the end state after fat removal.
Defatted milk powder and defatted cocoa are actually nutritional superstars—removing fat leaves behind all the protein and nutrients but cuts calories, which is why these became crucial ingredients in everything from infant formula to chocolate spread.
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