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Objective: To evaluate energetic contribution according to the degree of industrial food processing and its association with sociodemographic, anthropometric, biochemical, clinical and behavioural characteristics in adolescents. Design: Cross-sectional study (Adolescent Lifestyle Study). Food consumption was assessed using 24-h dietary recalls, with foods classified by degree of industrial progressing. The usual diet was estimated using the Multiple Source Method. In a linear regression model, the energy percentage (E %) was associated with sociodemographic, anthropometric, biochemical, clinical and behavioural characteristics, after adjustment for sex and age. Setting: Juiz de Fora, Brazil. Participants: Eight hundred and four adolescents, of both sexes, 14–19 years of age, enrolled in public schools. Results: The E % of unprocessed or minimally processed foods corresponded to 43·1 %, processed foods to 11·0 % and the ultraprocessed foods to 45·9 %. E % of unprocessed foods was associated with socio-economic stratum (adjusted β = −0·093; P = 0·032), neck circumference (adjusted β = 0·017; P = 0·049), screen time (adjusted β = −0·247; P = 0·036) and HDL-cholesterol (adjusted β = −0·156; P = 0·003). E % of ultraprocessed foods was associated with socio-economic stratum (adjusted β = 0·118; P = 0·011), screen time (adjusted β = 0·375; P = 0·003), BMI (adjusted β = −0·029; P = 0·025), neck circumference (adjusted β = −0·017; P = 0·028) and HDL-cholesterol (adjusted β = 0·150; P = 0·002). Conclusions: There was a high E % of ultraprocessed foods in the diet of the adolescents. Actions are needed to raise the awareness of adopting healthy eating habits.

Introdução: O controle da hiperfosfatemia é um desafio no tratamento de pacientes hemodialíticos, sendo um dos principais objetivos a serem alcançados. O acompanhamento nutricional e a prática de atividades educativas contribuem para o sucesso na adesão ao tratamento. Objetivo: Descrever, em indivíduos em hemodiálise, o conhecimento do tratamento da hiperfosfatemia, bem como avaliar o possível impacto das orientações nutricionais nos níveis séricos de fósforo após intervenção nutricional em participantes do programa de HD no Hospital Universitário na cidade de Juiz de Fora, MG. Material e métodos: Estudo quase-experimental, do tipo antes e depois com 35 pacientes em tratamento hemodialítico, com 18 anos ou mais, de ambos os sexos, em diálise há, pelo menos, dois meses e que haviam passado por, pelo menos, uma consulta com a nutricionista do setor. Foram coletados do prontuário dados sociodemográficos e clínicos e aplicados questionário de frequência alimentar adaptado e recordatório 24h para avaliação do consumo alimentar, além de questões fechadas sobre o conhecimento das causas da hiperfosfatemia, alimentos ricos em fósforo e uso de quelantes. A intervenção foi realizada mediante a utilização de cartilha educativa. Após a intervenção foram verificados os níveis séricos de fósforo, considerando hiperfosfatemia valores >5,5 mg/dL. Resultados: Na amostra, 57,1% (n=20) eram do sexo masculino, com média de idade de 61,8 ± 14,3 anos e tempo médio em diálise de 61,1 ± 68,9 meses. A prevalência de hiperfosfatemia antes da intervenção era de 60% (n=21) e ao final da intervenção houve redução para 25,7% (n=9). Houve diferença na redução dos níveis séricos de fósforo quando comparadas as médias antes e depois da intervenção [(5,9 ± 1,3 mg/dL; 4,9 ± 1,7 mg/dL; p<0,001)]. Conclusão: Os resultados mostraram que a intervenção educativa possivelmente contribuiu para melhorar a compreensão e adesão ao tratamento, tendo um papel complementar no manejo da hiperfosfatemia de pacientes dialíticos.

Objective To characterize food consumption, considering the degree of industrial food processing by public schools’ adolescents. Methods Cross-sectional study involving adolescents aged 14 to 19 years, of both genders, attending public schools in Juiz de Fora, MG. Food consumption was assessed using two 24-hour dietary recalls. Foods were classified into three groups according to the degree of industrial processing: (1) unprocessed foods or minimally processed foods, culinary ingredients and preparations based on these foods; (2) processed foods; (3) ultra-processed foods. In addition, weight and height information was collected, with subsequent calculation of body mass index/age to assess the individuals’ nutritional status according to the gender. Pearson’s chi-square, Mann-Whitney and Kruskal-Wallis tests were performed, adopting a value of p<0.05. Results The sample consisted of 804 adolescents, with a predominance of females (57.5%). In the sample, 29.9% and 26.1%, of girls and boys, respectively, were overweight. There was a difference in the daily consumption of ready-made sweet-tasting foods, being higher in females (26.2%) when compared to males (18.1%), whereas the consumption of soft drinks (one to four times a week) was 47.2% and 55.6% in girls and boys, respectively (p<0.05). Higher consumption of ultra-processed foods was observed in females (p=0.02) and processed foods in males (p=0.008). Conclusion There was a high contribution of ultra-processed foods in the diet of adolescents in public schools; a high prevalence of overweight was observed in both genders.