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Study design. Numbers below diet boxes represent study days. WMD, weight-maintaining diet; EXD1, experimental diet 1 representing either 2400 or 3400 kcal/d; EXD2, experimental diet 2 representing either 2400 or 3400 kcal/d; Dye 1, administration of dye 1 (FD&C blue) with food; Dye 2, administration of dye 2 (FD&C blue) with food; Dye 1 in stool, appearance of dye 1 in stool; Dye 2 in stool, appearance of dye 2 in stool; Coll., collection.
