Banca de DEFESA: MAYARA FREITAS LIMA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MAYARA FREITAS LIMA
DATA : 19/03/2019
HORA: 09:00
LOCAL: Embrapa Agroindústria de Alimentos
TÍTULO:

Sugar reduction strategies for food targeted at children

PALAVRAS-CHAVES:

children; sugar reduction; front of pack nutritional schemes; food reformulation

PÁGINAS: 110
GRANDE ÁREA: Ciências Agrárias
ÁREA: Ciência e Tecnologia de Alimentos
SUBÁREA: Ciência de Alimentos
ESPECIALIDADE: Avaliação e Controle de Qualidade de Alimentos
RESUMO:

Obesity is one of the biggest public health problems nowadays and has expressively affected children. Childhood obesity has several consequences, including an increased risk of chronic diseases development during adolescence and adulthood. One of the factors strongly associated with weight gain in children is the excessive sugar ingestion due to the high consumption of products target at children, which present high energy content and low nutritional value. Sugary drinks (fruit drinks, soft drinks) are pointed out as the main source of sugar consumed by children. In this sense, several public policies have been proposed to reduce sugar consumption. The aim of this thesis was to evaluate the effect of the front of pack (FOP) labeling schemes and the food reformulation as strategies for reducing the consumption of sugar by children. For that, five studies were carried out with 6-12 years old children, and in three of them adults were also involved. The first two studies evaluated the inclusion of FOP schemes (directive model: warnings and semi-directive: traffic light system) as a strategy to reduce the perception of healthiness and modify emotional response related to unhealthy foods. The studies 3 and 4 evaluated the food reformulation (sugar reduction) as a strategy to reduce sugar consumption by children, determining the sugar reduction threshold and comparing children hedonic and sensory perception on sugar reduced drinks using different methods (gradual and sequential reduction). The last study evaluated the combined effect of FOP schemes and sugar reduction on children and adults’ food choice under different experimental conditions. The results revealed that for parents, food products containing nutritional warnings were significantly classified as less healthy. On the other hand, FOP schemes had a limited effect on the children healthfulness perception and the emotional response. However, the directive and semi-directive FOP schemes had higher effect compared to the non-directive (RV%) in both studies. The results of the determination of the sugar reduction threshold showed that children were less sensitive to changes in sugar concentrations than adults. The gradual reduction was the most appropriate reformulation strategy because it caused less changes in children’ hedonic and sensory perception, suggesting that this is a viable policy for reducing sugar consumption. Taking into account the combined effect of sugar reduction and FOP schemes, the results indicated that nutritional warnings had a higher effect on children and adults’ expectation; however, after tasting the product, the flavor was determinant for the product choice. The low choice of products with higher levels of sugar reduction suggests the combination of gradual sugar reduction and the nutritional warnings as appropriate strategy, because they are complementary actions. The inclusion of directive FOP schemes would facilitate the identification of unhealthy foods by children and adults, and the gradual reduction of sugar would reduce the sugar content of products available in the market, contributing to the reduction of consumption, and modification of food habits in long-term.

MEMBROS DA BANCA:
Externo à Instituição - ANDRE DE SOUZA DUTRA - EMBRAPA
Externo à Instituição - DANIELA DE GRANDI CASTRO FREITAS DE SÁ - EMBRAPA
Externo ao Programa - 2333157 - KATIA CILENE TABAI
Interno - 1524368 - MARIA IVONE MARTINS JACINTHO BARBOSA
Externo à Instituição - PATRÍCIA CONSTANTE JAIME - USP
Externo à Instituição - RAFAEL SILVA CADENA - UNIRIO
Presidente - 024.950.088-44 - ROSIRES DELIZA - EMBRAPA