5 results on '"Piernas-Sanchez, Carmen"'
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2. An intervention study to improve food shopping and prevent cardiovascular disease among patients in primary care: the PC SHOP trial
- Author
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Piernas Sanchez, Carmen, primary
- Published
- 2017
- Full Text
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3. Low Calorie-‐and Caloric-‐Sweeteners: Diet Quality, Food Intake and Purchase Patterns of U.S. Household Consumers
- Author
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Piernas Sanchez, Carmen M.
- Subjects
digestive, oral, and skin physiology - Abstract
Although most food and beverage products consumed in the U.S. contain caloric-sweeteners (CS), consumption of low calorie sweeteners (LCS) such as aspartame, saccharin or stevia in foods and beverages has increased rapidly over the past 30 years. However, there is limited knowledge about the long-term determinants and consequences of LCS and CS consumption. This dissertation aimed to specifically examine consumption of products containing LCS and CS over the last decade and investigate the dietary quality and food patterns of consumers in the U.S. This research used measures of foods as purchased from the Homescan dataset 2000-2010, and dietary intake data from the National Health and Nutrition Examination Surveys (NHANES) 2003-2010. Aim 1 implemented an innovative approach based on ingredient and nutrition facts panel information to identify sweeteners in food products. Coincident with declining purchases and consumption of CS products over the last decade, we documented an important increasing trend in products containing LCS and a previously unexplored trend in products with both LCS and CS, especially important among households with children. In aim 2, we examined the dietary quality and food patterns of consumers of beverages with LCS and CS from 2000-10. Compared to non/low consumers of LCS- and CS-beverages, consumers had a significantly lower probability of adherence to a Prudent dietary pattern and higher average energy from purchases or intake of high calorie food groups such as salty snacks, fast food meals or desserts. LCS-beverage consumers also followed another different pattern of purchases consisting in fruits, vegetables, nuts and also snacks and desserts. Aim 3 used a dynamic panel model and instrumental variables to investigate the long-term effect of CS- and LCS-beverages on dietary quality and food purchasing patterns from 2000-2010. Despite overall declines in calories from all sources, we found that increasing one daily serving of either CS- or LCS-beverages is associated with significantly increased total daily energy, energy from food, and also increased daily energy from carbohydrates, total sugar, and total fat. We also found that increasing one serving of either beverage per day was mainly associated with increased purchases of caloric desserts and sweeteners. In conclusion, as consumers appear to be turning to LCS for their sweet options, our study opens up new pathways that relate consumption of both LCS- and CS-beverages to poorer dietary patterns and increased purchases of overall energy, carbohydrates, sugar, and caloric desserts and sweeteners. It is essential to understand if sweetener consumption translates into a better or worse dietary quality before continuing with more complex studies that relate sweetener intake to health outcomes. Our findings suggest that any type of sweetened beverage consumption could have a negative effect on diet, which can potentially inform future intervention strategies and nutrition policy recommendations aimed at improving diet and nutrition in the U.S.
- Published
- 2013
- Full Text
- View/download PDF
4. A Dietary Pattern High in Sugar, Sodium and Saturated Fat Was Negatively Associated With Academic Performance in Malay Adolescents.
- Author
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Roslim, Nurul Afiedia, Md Azizan, Nurul Huda, Mohd Noor, Siti Maisarah, Piernas-Sanchez, Carmen, and Ahmad, Aryati
- Subjects
- *
DIETARY patterns , *ACADEMIC achievement , *SATURATED fatty acids , *SUGAR , *SODIUM , *SCHOOL absenteeism - Abstract
Introduction: Dietary patterns (DP) and its relationship with academic performance especially among schoolchildren have received significant attention in nutritional epidemiology studies. The objective of this cross-sectional study was to determine the determinants of academic success among Malay teenagers in Terengganu, Malaysia. Methods: Habitual dietary intakes were obtained using a semi-quantitative food frequency questionnaire, anthropometry data were measured by trained researchers and information on academic performance were gathered from the school registrar’s office. The method of reduced rank regression was employed in order to determine the dietary patterns (DPs) and multivariable linear regression models were employed to examine the relationships between DP and academic performance. Results: Of the 375 study participants, half of the sample were female (50.1%), with 61.9% having a normal BMI. The main DP identified in this study was “high sugar, high sodium and high saturated fatty acid (SFA)”. The models showed that there were significant inverse associations between the DP with Science marks (β=-1.87; 95%CI:-0.39,-3.36; p=0.013) and the combination of Mathematics and Science marks (β=-3.49; 95%CI:-0.45,6.52; p=0.024). Findings showed that a ‘high sugar, sodium and SFA’ DP could negatively impact the academic performance of adolescents, particularly in STEM-related subjects. Conclusion: These could serve as a basis for developing nutritional education among adolescents to enhance academic performance for a better future. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Development and feasibility testing of an intervention to reduce salt intake in people with hypertension
- Author
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Payne Riches, Sarah, Jebb, Susan, Piernas sanchez, Carmen, and Aveyard, Paul
- Subjects
Hypertension ,Health ,Nutrition - Abstract
Reducing dietary salt intake plays an important role in the prevention and management of hypertension, yet the evidence for effective and scalable individual-level interventions is scarce. In this research I aimed to fill this gap by developing and testing an intervention to reduce salt intake in people with hypertension. Firstly, I investigated the impact of offering shoppers lower-salt alternatives when grocery shopping, in a randomised controlled trial using a simulated online supermarket platform. I found that shoppers were willing to swap to lower-salt alternatives, and that offering a wide range of products with greater reductions in salt (>20% less) significantly reduced the salt content of their shopping basket compared with offering alternatives which were more similar in nature and salt content (-0.09 g/100g, 95% C.I. -0.10 to -0.07 p<0.001). Secondary analysis showed that participants who had previously received advice to reduce their salt intake accepted more lower-salt swaps than those who had not. I then developed a primary care-led intervention, using a theoretical behaviour change framework, to motivate and support people with hypertension to reduce their salt intake, including an app to help them choose lower-salt food when grocery shopping. A feasibility randomised controlled trial showed that the intervention ('SaltSwap') could be delivered in routine primary care settings (intervention fidelity 81% and high acceptability among healthcare professionals), it successfully engaged individuals with high blood pressure (the intervention session was attended by all participants randomised to the intervention group and the SaltSwap app was used by 87% of intervention participants in the first month and in 75% of shopping trips overall) and encouraged participants to swap to lower-salt alternatives for foods which typically contribute most to salt intake. An in-depth qualitative study demonstrated that SaltSwap improved participants' knowledge and motivation to reduce salt intake, and individuals engaged with the SaltSwap app in a meaningful way. Together these results suggest that offering shoppers lower-salt alternatives is a promising approach to reducing salt intake among people with hypertension and a future large-scale trial to test the effectiveness of the SaltSwap intervention for reducing blood pressure is warranted.
- Published
- 2020
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