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16 pages, 292 KiB

Open AccessArticle

Animal Protein Intake Is Associated with General Adiposity in Adolescents: The Teen Food and Development Study

by Gina Segovia-Siapco, Golandam Khayef, Peter Pribis, Keiji Oda, Ella Haddad and Joan Sabaté

Nutrients 2020, 12(1), 110; https://doi.org/10.3390/nu12010110 - 31 Dec 2019

Cited by 19 | Viewed by 4712

Protein plays a crucial role in the growth and development of adolescents. However, being a secondary energy source, protein’s role in obesity has been sidelined. We examined whether intake of protein (total, animal, plant), branched-chain (BCAAs), and sulfur-containing (SCAAs) amino acids are associated [...] Read more.

Protein plays a crucial role in the growth and development of adolescents. However, being a secondary energy source, protein’s role in obesity has been sidelined. We examined whether intake of protein (total, animal, plant), branched-chain (BCAAs), and sulfur-containing (SCAAs) amino acids are associated with general body and central obesity and body composition in a cross-sectional study among healthy adolescents. Students aged 12–18 years old (n = 601) in schools near two major Adventist universities in California and Michigan provided dietary data via a validated web-based food frequency questionnaire (FFQ) and anthropometric data during school visits. Intakes of total, animal, and plant proteins, and BCAAs and SCAAs were derived from FFQ data. We defined general body obesity with body-mass-index-for-age (BMIz) z-scores and central obesity with waist-to-height ratios (WHtR). After full adjustment for covariates, multiple regression analyses showed significant positive associations between intakes of total protein (β = 0.101, 95% CI: 0.041, 0.161), animal protein (β = 0.118, 95% CI: 0.057, 0.178), BCAAs (β = 0.056, 95% CI: 0.025, 0.087), and SCAAs (β = 0.025, 95% CI: 0.012, 0.038) with general body adiposity. Animal protein (β = 0.017, 95% CI: 0.001, 0.033) and SCAAs (β = 0.004, 95% CI: 0.000, 0.008) were also associated with central obesity. Total and animal protein and BCAA and SCAA were also significantly associated with fat mass. Our findings suggest that high protein intake may pose a possible detriment to adolescent health. Longitudinal and safety evaluation studies are recommended. Full article

(This article belongs to the Special Issue Macronutrients Intake and Adolescent Health)

13 pages, 577 KiB

Open AccessArticle

Trends in Dietary Intake of Total Fat and Fatty Acids Among Korean Adolescents from 2007 to 2017

by SuJin Song and Jae Eun Shim

Nutrients 2019, 11(12), 3073; https://doi.org/10.3390/nu11123073 - 16 Dec 2019

Cited by 13 | Viewed by 3503

Abstract

We analyzed the trends in dietary intake of total fat and fatty acids among Korean adolescents during 2007–2017. A total of 6406 adolescents from the 2007–2017 Korea National Health and Examination Surveys were selected. Total fat and fatty acids intakes were calculated based [...] Read more.

We analyzed the trends in dietary intake of total fat and fatty acids among Korean adolescents during 2007–2017. A total of 6406 adolescents from the 2007–2017 Korea National Health and Examination Surveys were selected. Total fat and fatty acids intakes were calculated based on single 24-hour recall data and presented as grams (g) and percentage of energy intake (% kcal) across the survey period. Linear trends in intake across the survey period were compared using the multiple regression model. Total fat intake increased during the 11-year period from 54.3 g (21.7% kcal) to 61.8 g (25.2% kcal). Saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA) intakes changed from 17.8 g (7.1% kcal) and 17.2 g (6.8% kcal) to 20.6 g (8.4% kcal) and 20.7 g (8.4% kcal) over time, respectively. For polyunsaturated fatty acids (PUFA), n-3 fatty acid intake did not change during the survey period. The proportions of individuals who had total fat and SFA above the recommendations increased across the survey period: 13.7% to 27.5% for total fat and 36.0% to 49.7% for SFA. Among Korean adolescents, dietary fat intake increased over time and the increases in SFA and MUFA intake were prominent. Monitoring dietary fat intake is helpful to suggest dietary guidelines and health policies. Full article

(This article belongs to the Special Issue Macronutrients Intake and Adolescent Health)

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22 pages, 317 KiB

Open AccessReview

Adolescent Obesity: Diet Quality, Psychosocial Health, and Cardiometabolic Risk Factors

by Lyndsey D. Ruiz, Michelle L. Zuelch, Sarah M. Dimitratos and Rachel E. Scherr

Nutrients 2020, 12(1), 43; https://doi.org/10.3390/nu12010043 - 23 Dec 2019

Cited by 136 | Viewed by 21170

Abstract

Obesity is a multifaceted chronic condition with several contributing causes, including biological risk factors, socioeconomic status, health literacy, and numerous environmental influences. Of particular concern are the increasing rates of obesity in children and adolescents, as rates of obesity in youth in the [...] Read more.

Obesity is a multifaceted chronic condition with several contributing causes, including biological risk factors, socioeconomic status, health literacy, and numerous environmental influences. Of particular concern are the increasing rates of obesity in children and adolescents, as rates of obesity in youth in the United States have tripled within the last three decades. Youth from historically disadvantaged backgrounds tend to have higher rates of obesity compared to other groups. Adolescents often do not meet intake recommendations for certain food groups and nutrients, which may contribute to a heightened risk of obesity. With obesity disproportionately affecting adolescents (ages 12–19 years), negative effects of excess adiposity may be particularly salient during this critical period of development. The presentation of chronic cardiometabolic disease symptoms typically observed in adults, such as hypertension, hyperglycemia, dyslipidemia, and inflammation, are becoming increasingly common in adolescents with obesity. Additionally, there is dynamic interplay between obesity and psychosocial health, as adolescents with obesity may have increased levels of stress, depressive symptoms, and reduced resilience. To reduce and prevent adolescent obesity, the implementation of theory-driven multicomponent school- and community-based interventions have been suggested. These interventions promote knowledge and self-efficacy for healthful practices that have the potential to progress to sustained behavior change. Full article

(This article belongs to the Special Issue Macronutrients Intake and Adolescent Health)

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