Perceptions, Acceptability, and Consumption Habits Regarding Protein- and Fiber-Enriched Food Products Among Older Adults

Abstract

Population aging poses challenges related to food consumption, particularly due to the reduced intake of protein and dietary fiber among older adults. This study aimed to analyze the perceptions, acceptability, and consumption habits regarding products modified to increase these nutrients among older adults in Gualeguaychú, Argentina. A mixed-methods approach was employed, combining structured surveys (n = 100) with focus groups involving older adults and caregivers (n = 16). The results showed that 80% of participants did not consume nutrient-modified products, although there was a willingness to incorporate them into their diets. The main factors influencing purchasing decisions were price, nutritional quality, shelf life, and food safety. Overall acceptability was 60%, mainly associated with sensory attributes such as taste, texture, and appearance. Barriers related to cost, availability, and limited knowledge of these products were also identified. It is concluded that there is growing interest in healthy foods; however, their adoption requires affordable products with appropriate sensory quality and clear communication of their benefits.