Much animal fat in the diet is contained in meal. As fat intake is consider
ed too high in western societies! a more fat-conscious attitude may be desi
rable. One of the parties involved is the butcher, who sells fresh meat dir
ectly to the consumer. In a pre-post experimental design, with an interpola
ted training phase, the possibility to improve the ability of student butch
ers to visually estimate fat content of meat, was investigated. A limited n
umber of training sessions, in which immediate feed-back was given of the a
ctual fat percentage after each estimation, led to a large improvement in f
at estimation accuracy. A delayed post-test indicated that most of the trai
ning effect was preserved after six weeks. Similarities between the observe
d learning process and informational feedback learning with numerosity stim
uli were discussed. On the basis of these results it is recommended that co
urses for trainee butchers include a short course on fat estimation in thei
r curriculum. If butchers sell what they think they sell, consumers are mor
e likely to get what they think they get. Increased 'fat awareness' may ind
irectly contribute to healthier eating habits. (C) 2000 Elsevier Science Lt
d. All rights reserved.