Introduction ------------ A seed junkie is a caged bird that eats only seeds and nuts, steadfastly refusing all other foods offered. Unfortunately, such an exclusive diet guarantees ill health and a greatly shortened life expectancy for these pet birds. Why do caged birds become so easily hooked on seeds (primarily sunflower and safflower) and nuts (peanuts most notably) when these foods are rarely part of their diet in the wild? The answer has two parts. The first part concerns the wide availability, popularity and relative feeding convenience (including lack of perishability) of seed/nut mixtures, most often called parrot mixes. The second part concerns the relatively high fat content of these food items. For years, there has been speculation that sunflower seeds contain some addictive property. Recent research at the University of California at Davis has revealed that the relatively high fat (oil) content of these foods produces an energy rush or high similar to the sugar rushes from consuming junk foods containing lots of sugar. Parrots, given the opportunity, preferentially eat these high-fat foods. When deprived of them, they exhibit profound depression and a craving for the seeds. This almost addictive quality of seeds certainly contributes to the huge number of seed junkies currently being kept as pet birds.