Camila Corvalan

Camila Corvalan

orcid

Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 December 2016 in The Lancet Diabetes & Endocrinology
Verified
Journal Article
Closed access
LPLucilla Poston
Lucilla Poston
RCRishi Caleyachetty
Rishi Caleyachetty
SCSven Cnattingius
Sven Cnattingius
CCCamila Corvalan
Camila Corvalan
RURicardo Uauy
Ricardo Uauy
MGMatthew W Gillman
Matthew W Gillman

11 February 2020 in PLOS Medicine
Verified
Journal Article
Open access
PDF file
LTLindsey Smith Taillie
Lindsey Smith Taillie
MRMarcela Reyes
Marcela Reyes
MCM. Arantxa Colchero
M. Arantxa Colchero
BPBarry Popkin
Barry Popkin
CCCamila Corvalan
Camila Corvalan
Chile’s Law of Food Labeling and Advertising, implemented in 2016, was the first national regulation to jointly mandate front-of-package warning labels, restrict child-directed marketing, and ban sales in schools of all foods and beverages containing added sugars, sodium, or saturated fats that exceed set nutrient or calorie thresholds. The objective of this study is to evaluate the impact of this package of policies on household beverage purchases. In this observational study, monthly longitudinal data on packaged beverage purchases were collected from urban-dwelling households (n = 2,383) participating in the Kantar WordPanel Chile Survey from January 1, 2015, to December 31, 2017. Beverage purchases were linked to nutritional information at the product level, reviewed by a team of nutritionists, and categorized as “high-in” or “not high-in” according to whether they contained high levels of nutrients of concern (i.e., sugars, sodium, saturated fat, or energy) according to Chilean nutrient thresholds and were thus subject to the law’s warning label, marketing restriction, and school sales ban policies. The majority of high-in beverages were categorized as such because of high sugar content. We used fixed-effects models to compare the observed volume as well as calorie and sugar content of postregulation beverage purchases to a counterfactual based on preregulation trends, overall and by household-head educational attainment. Of households included in the study, 37% of household heads had low education (less than high school), 40% had medium education (graduated high school), and 23% had high education (graduated college), with the sample becoming more educated over the study period. Compared to the counterfactual, the volume of high-in beverage purchases decreased 22.8 mL/capita/day, postregulation (95% confidence interval [CI] −22.9 to −22.7; p < 0.001), or 23.7% (95% CI −23.8% to −23.7%). High-educated and low-educated households showed similar absolute reductions in high-in beverage purchases (approximately 27 mL/capita/day; p < 0.001), but for high-educated households this amounted to a larger relative decline (−28.7%, 95% CI −28.8% to −28.6%) compared to low-educated households (−21.5%, 95% CI −21.6% to −21.4%), likely because of the high-educated households’ lower level of high-in beverage purchases in the preregulation period. Calories from high-in beverage purchases decreased 11.9 kcal/capita/day (95% CI −12.0 to −11.9; p < 0.001) or 27.5% (95% CI −27.6% to −27.5%). Calories purchased from beverages classified as “not high-in” increased 5.7 kcal/capita/day (95% CI 5.7–5.7; p < 0.001), or 10.8% (10.8%–10.8%). Calories from total beverage purchases decreased 7.4 kcal/capita/day (95% CI −7.4 to −7.3; p < 0.001), or 7.5% (95% CI −7.6% to −7.5%). A key limitation of this study is the inability to assess causality because of its observational nature. We also cannot determine whether observed changes in purchases are due to reformulation or consumer behavioral change, nor can we parse out the effects of the labeling, marketing, and school sales ban policies. Purchases of high-in beverages significantly declined following implementation of Chile’s Law of Food Labeling and Advertising; these reductions were larger than those observed from single, standalone policies, including sugar-sweetened-beverage taxes previously implemented in Latin America. Future research should evaluate the effects of Chile’s policies on purchases of high-in foods, dietary intake, and long-term purchasing changes.

7 November 2019 in Nature Medicine
Verified
Journal Article
Closed access
PDF file
JMJ. Jaime Jaime Miranda
J. Jaime Jaime Miranda
TBTonatiuh Barrientos-Gutiérrez
Tonatiuh Barrientos-Gutiérrez
CCCamila Corvalan
Camila Corvalan
AHAdnan A. Hyder
Adnan A. Hyder
MLMaria Lazo-Porras
Maria Lazo-Porras
JWJonathan C. K. Wells
Jonathan C. K. Wells

19 June 2017 in Public Health Nutrition
Verified
Journal Article
Closed access
PDF file
GCGustavo Cediel
Gustavo Cediel
MRMarcela Reyes
Marcela Reyes
MLMaria Laura da Costa Louzada
Maria Laura da Costa Louzada
ESEuridice Martinez Steele
Euridice Martinez Steele
CMCarlos A Monteiro
Carlos A Monteiro
RURicardo Uauy
Ricardo Uauy
Objective: To assess the consumption of ultra-processed foods and analyse its association with the content of added sugars in the Chilean diet.Design: Cross-sectional study of national dietary data obtained through 24 h recalls and classified into food groups according to the extent and purpose of food processing (NOVA classification).Setting: Chile.Subjects: A probabilistic sample of 4920 individuals (aged 2 years or above) studied in 2010 by a national dietary survey (Encuesta Nacional de Consumo Alimentario).Results: Ultra-processed foods represented 28·6 (se0·5) % of total energy intake and 58·6 (se0·9) % of added sugars intake. The mean percentage of energy from added sugars increased from 7·7 (se0·3) to 19·7 (se0·5) % across quintiles of the dietary share of ultra-processed foods. After adjusting for several potential sociodemographic confounders, a 5 percentage point increase in the dietary share of ultra-processed foods determined a 1 percentage point increase in the dietary content of added sugars. Individuals in the highest quintile were three times more likely (OR=2·9; 95 % CI 2·4, 3·4) to exceed the 10 % upper limit for added sugars recommended by the WHO compared with those in the lowest quintile, after adjusting for sociodemographic variables. This association was strongest among individuals aged 2–19 years (OR=3·9; 95 % CI 2·7, 5·9).Conclusions: In Chile, ultra-processed foods are important contributors to total energy intake and to the consumption of added sugars. Actions aimed at limiting consumption of ultra-processed foods are being implemented as effective ways to achieve WHO dietary recommendations to limit added sugars and processed foods, especially for children and adolescents.

1 August 2021 in The Lancet Planetary Health
Verified
Journal Article
Open access
LTLindsey Smith Taillie
Lindsey Smith Taillie
MBMaxime Bercholz
Maxime Bercholz
BPBarry Popkin
Barry Popkin
MRMarcela Reyes
Marcela Reyes
MCM Arantxa Colchero
M Arantxa Colchero
CCCamila Corvalan
Camila Corvalan
In 2016, Chile implemented a unique law mandating front-of-package warning labels, restricting marketing, and banning school sales for products high in calories, sodium, sugar, or saturated fat. We aimed to examine changes in the calorie, sugar, sodium, and saturated fat content of food and beverage purchases after the first phase of implementation of this law. This before and after study used longitudinal data on food and beverage purchases from 2381 Chilean households from Jan 1, 2015, to Dec 31, 2017. Nutrition facts panel data from food and beverage packages were linked to household purchases at the product level using barcode, brand name, and product description. Nutritionists reviewed each product for nutritional accuracy and categorised it as high-in if it contained added sugar, sodium, or saturated fat and exceeded phase 1 nutrient or calorie thresholds, and thus was subject to the labelling, marketing, and school regulations. Using fixed-effects models, we examined the mean nutrient content (overall calories, sugar, saturated fat, and sodium) of purchases in the post-policy period compared to a counterfactual scenario based on pre-policy trends. Compared with the counterfactual scenario, overall calories purchased declined by 16·4 kcal/capita/day (95% CI -27·3 to -5·6; p=0·0031) or 3·5%. Overall sugar declined by 11·5 kcal/capita/day (-14·6 to -8·4; p<0·0001) or 10·2%, and saturated fat declined by 2·2 kcal/capita/day (-3·8 to -0·5; p=0·0097) or 3·9%. The sodium content of overall purchases declined by 27·7 mg/capita/day (-46·3 to -9·1; p=0·0035) or 4·7%. Declines from high-in purchases drove these results with some offset by increases in not-high-in purchases. Among high-in purchases, relative to the counterfactual scenario, there were notable declines of 23·8% in calories purchased (-49·4 kcal/capita/day, 95% CI -55·1 to -43·7; p<0·0001), 36·7% in sodium purchased (-96·6 mg/capita/day,-105·3 to -87·8; p<0·0001), and 26·7% in sugar purchased (-20·7 kcal/capita/day, -23·4 to -18·1; p<0·0001). The Chilean phase 1 law of food labelling and advertising policies were associated with reduced high-in purchases, leading to declines in purchased nutrients of concern. Greater changes might reasonably be anticipated after the implementation of phases 2 and 3. Bloomberg Philanthropies, International Development Research Center, and Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health.