Experimental studies have demonstrated that adding monosodium glutamat
e (MSG) to a large array of different savory foods influences palatabi
lity, food preferences, and food choice. Sensory evaluation tests have
shown that both traditional and novel foods get higher palatability r
atings if MSG is added at an appropriate dose. The acquisition of a li
king for a novel food is facilitated by the addition of MSG to the rec
ipe. In institutionalized elderly persons and hospitalized diabetic pa
tients, the addition of MSG to target foods in a lunch meal induced an
increased intake of those specific foods, with a subsequent decreased
intake of foods presented later in the meal. In both populations, foo
d selection was affected by MSG but meal size remained the same. Exper
iencing the positive effects of MSG is thus possible without inducing
hyperphagia. Research should now investigate the long-term effects of
widespread MSG use on body weight control.