Aiming to study proteic value of some dietary products used in macrobiotic diet, the authors performed an experiment on male albino rats. Protein Efficiency and Food Conversion Index were determined as well as growth curve of animals fed with unpolished rice and missô mixture (9:1), Muasli (a cereal based dessert) and cereal milk (utilized in child food) and were compared to casein. Results obtained indicated that rice/missô mixture present a proteic value compaired to that of casein whereas other products that were studied showed a significant inferior value.