Disclosed is a unit dose laundry detergent product containing an in-vitro, delayed onset fluid gel detergent composition and a water soluble film pouch for enclosing the detergent composition. The composition includes a linear alkylbenzene sulfonate and/or an alcohol ethoxy sulfate having a C8-C20 backbone that is ethoxylated with from about 1 to about 10 moles of ethylene oxide, and a non-ionic surfactant comprising an alkoxylated alcohol, in an amount from 20 to 70 wt %, water in an amount from about 10 to about 30 wt %, free fatty acids in an amount from about 2 to 12 wt %, a magnesium cation in an amount of from 0.15 to 1 wt %, and colloidal particles such as an encapsulated fragrance. The composition is opacified and structured yet free of a structuring agent or an opacifying agent. Also disclosed is a method of making such product.