The nutrient content of the diet of edentulous patients who have various oral prostheses is of concern. This study compared baseline food records to those records kept semiannually for 3 years after treatment to ascertain whether nutrient intake of edentulous patients changed after they received new implant-supported mandibular dentures (n = 41) or new conventional dentures (n = 30). No significant differences in intake of calories or of 27 nutrients were noted between the two groups (p > 0.01). A decline in the percent of calories from fat with a corresponding increase in carbohydrate calories within both groups (p < 0.01) reflected a national trend; a slight decrease in calories was similarly observed (p < 0.02). More than 40% of patients in both groups were found to have inadequate intakes of dietary fiber, calcium, or both, and 25% to 50% had low intakes of vitamins A, E, D, B6 and/or magnesium. Intakes were similar to those reported for two age-matched populations.