Dr. Bernard L. Oser, 95, a biochemist...

Dr. Bernard L. Oser, 95, a biochemist whose work enriched public awareness of what can safely go into food, beverages and cosmetics, died Saturday of gastrointestinal illness in Englewood, N.J. He spent 47 years with Food Research Laboratories, later Food and Drug Research Laboratories, as it grew into one of the country's foremost commercial testing grounds for wholesomeness. He retired as chairman and owner in 1973. He was credited with alerting the food industry in the 1950s to the need for toxicologic studies and safety evaluations. His expertise in two related fields, nutrition and toxicology, helped move food science forward at a time when there was growing concern over new additives and preservatives.