by Raquel Ricci  , Luana Romão Nogueira  , Priscila Maximino  , William Cabral de Miranda  , Karina Rizzardo Sella  , Nathalia Gioia de Paula  and Mauro Fisberg

Received: 18 December 2025;  Published: 29 May 2026;  doi: 10.21926/rpn.2602006

This study descriptively investigates the food acceptance patterns and dietary profiles of neurotypical infants, children, and adolescents with Feeding Difficulties (FD) at a Brazilian pediatric reference center. It further examines whether a broader food repertoire translates into improved nutritional quality. The research, an observational, analytical cross-sectional study, analyzed data from 237 patients aged 10 to 204 months with FD. Findings revealed a discrepancy between family perceptions [...]

by Alessandro Menotti  and Paolo Emilio Puddu

Received: 12 December 2025;  Published: 26 May 2026;  doi: 10.21926/rpn.2602005

To study the relationship of dietary score versus age at death (AD) in an extinct cohort at 61 years of follow-up, based on an “inverse” procedure. Data from the Italian Rural Areas (IRA) of the Seven Countries Study of Cardiovascular Diseases, made up of 1712 middle-aged men followed for 61 years, were used. The “direct” approach means applying a dietary score to each subject of a cohort and, by means of a model, estimating the probabilities of events for different dietary score levels. The “in [...]

by Bashiri Iddy Muzzo  and Frederick D. Provenza

Received: 10 December 2025;  Published: 03 April 2026;  doi: 10.21926/rpn.2602004

Food-system by-products (FSBP), including agricultural by-products, agro-industrial co-products, and food-processing residues, represent an underused source of nutrients and plant secondary compounds with significant potential in ruminant feeding systems. This review synthesized 96 peer-reviewed studies published between 2000 and 2025 on phytochemically rich FSBP in ruminant diets, focusing on composition, rumen fermentation, animal health and performance, product quality, and environmental outc [...]