The key result of the study, that snacking on raisins controlled children's hunger, did not surprise me. But not because the California Raisin Marketing Board funded the study.
Because of the design of the study.
On test days over a three-month period, researchers fed 26 eight-to-11-year-old boys and girls of normal weight the same breakfast, mid-morning snack, and lunch. After school, however, the subjects randomly received a snack of raisins, grapes, potato chips, or chocolate chip cookies and were told to eat until they were comfortably full.