Related Experiment Video
Updated: Jan 10, 2026

Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults
Published on: April 22, 2022
Dietary Intake of Polyphenols in Adults Residing in Chile: A Descriptive Cross-Sectional Study
Carla Guzmán-Pincheira1, Esteban Romero-Vera2, Dyana Sepúlveda-Caro1
1Escuela de Nutrición y Dietética, Facultad de Ciencias de la Rehabilitación y Calidad de Vida, Universidad San Sebastián, Concepción, Chile.
Background:
Polyphenols have been recognized for their protective role against chronic noncommunicable diseases. Despite growing international evidence, studies assessing polyphenol intake in Latin American populations remain scarce, particularly in Chile, where profound nutritional transitions have increased the consumption of ultra-processed foods and the burden of obesity and cardiovascular disease.
Objective:
This study aimed to quantify dietary polyphenol intake in the Chilean adult population using a validated self-reported food frequency questionnaire.
Methods:
A descriptive cross-sectional design was conducted in 521 adults aged ≥18 years, residing in different Chilean macrozones. Sociodemographic, anthropometric, and lifestyle data were collected, and polyphenol intake was estimated.
Results:
The mean age of participants was 33.3 ± 10.1 years, with a predominance of women. The average daily intake of polyphenols was 1634.9 ± 1168.6 mg/d, with higher, though non-significant, consumption observed among women, rural residents, and individuals from the northern macrozone. Age-stratified analysis showed that men ≥30 years consumed significantly more polyphenols than younger men.
Conclusion:
Fruits represented the main dietary source, followed by coffee and tea, while wine and cider contributed minimally.
More Related Videos
Related Concept Videos
Cancer Prevention
Some...
Bioavailability Study Design: Healthy Subjects Versus Patients
Analysis of Population Pharmacokinetic Data
Taste Buds and Receptors

