Television is, arguably, the most influential mass medium and ''prime
time'' viewing attracts the largest audiences. To assess the type, num
ber and nutritional content of foods advertised on TV commercial break
s during ''prime time'' (7:00 to 11:00 p.m.) on five Canadian channels
(CBC-English, CBC-French, CTV, CFPL, Much Music) were recorded and an
alyzed. A similar analysis of Saturday morning children's TV commercia
ls was also performed. Commercials for foods and food products constit
uted between 24-35% of all commercials, the largest advertising output
for any group of products. The combination of food presented in comme
rcials reflected average current consumption patterns. Of special conc
ern was the emphasis on low nutrient beverages, especially beer, as we
ll as snacks and candy on Much Music. While further government interve
ntion to restrict advertising practices may be an impractical option,
there is scope for increasing the alternative promotion of healthy die
tary choices.