Sara Folta

Prof. Sara Folta

Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
orcid

Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

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

Representative Publications

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1 September 2023 in Circulation: Cardiovascular Quality and Outcomes
Verified
Journal Article
Closed access
KHKurt Hager
Kurt Hager
MDMengxi Du
Mengxi Du
ZLZhongyu Li
Zhongyu Li
DMDariush Mozaffarian
Dariush Mozaffarian
KCKenneth Chui
Kenneth Chui
FZFang Fang Zhang
Fang Fang Zhang
BACKGROUND: Produce prescriptions may improve cardiometabolic health by increasing fruit and vegetable (F&V) consumption and food insecurity yet impacts on clinical outcomes and health status have not been evaluated in large, multisite evaluations. METHODS: This multisite, pre- and post-evaluation used individual-level data from 22 produce prescription locations in 12 US states from 2014 to 2020. No programs were previously evaluated. The study included 3881 individuals (2064 adults aged 18+ years and 1817 children aged 2–17 years) with, or at risk for, poor cardiometabolic health recruited from clinics serving low-income neighborhoods. Programs provided financial incentives to purchase F&V at grocery stores or farmers markets (median, $63/months; duration, 4–10 months). Surveys assessed F&V intake, food security, and self-reported health; glycated hemoglobin, blood pressure, body mass index (BMI), and BMI z -score were measured at clinics. Adjusted, multilevel mixed models accounted for clustering by program. RESULTS: After a median participation of 6.0 months, F&V intake increased by 0.85 (95% CI, 0.68–1.02) and 0.26 (95% CI, 0.06–0.45) cups per day among adults and children, respectively. The odds of being food insecure dropped by one-third (odds ratio, 0.63 [0.52–0.76]) and odds of improving 1 level in self-reported health status increased for adults (odds ratio, 1.62 [1.30–2.02]) and children (odds ratio, 2.37 [1.70–3.31]). Among adults with glycated hemoglobin ≥6.5%, glycated hemoglobin declined by −0.29% age points (−0.42 to −0.16); among adults with hypertension, systolic and diastolic blood pressures declined by −8.38 mm Hg (−10.13 to −6.62) and −4.94 mm Hg (−5.96 to −3.92); and among adults with overweight or obesity, BMI decreased by −0.36 kg/m 2 (−0.64 to −0.09). Child BMI z -score did not change −0.01 (−0.06 to 0.04). CONCLUSIONS: In this large, multisite evaluation, produce prescriptions were associated with significant improvements in F&V intake, food security, and health status for adults and children, and clinically relevant improvements in glycated hemoglobin, blood pressure, and BMI for adults with poor cardiometabolic health.

1 July 2006 in Journal of Nutrition Education and Behavior
Verified
Journal Article
Closed access
SFSara Folta
Sara Folta
JGJeanne P. Goldberg
Jeanne P. Goldberg
CEChristina Economos
Christina Economos
RBRick Bell
Rick Bell
RMRachel Meltzer
Rachel Meltzer

1 July 2009 in American Journal of Public Health
Verified
Journal Article
Closed access
SFSara Folta
Sara Folta
ALAlice H. Lichtenstein
Alice H. Lichtenstein
RSRebecca A. Seguin
Rebecca A. Seguin
JGJeanne P. Goldberg
Jeanne P. Goldberg
JKJulia F. Kuder
Julia F. Kuder
MNMiriam E. Nelson
Miriam E. Nelson
Objectives. We tested a community-based intervention designed to reduce cardiovascular disease risk in sedentary midlife and older women who were overweight or obese. Methods. In a randomized controlled trial conducted in 8 counties in Arkansas and Kansas, counties were assigned to the intervention (a 12-week twice-weekly heart health program) group or to the delayed-intervention control group. Ten to fifteen women were selected from each site, and participants' weight, waist circumference, diet, physical activity, and self-efficacy were measured before and after the intervention. Data were analyzed with multiple regressions. Results. Compared with the control group, participants in the intervention group had a significant decrease in body weight (−2.1 kg; 95% confidence interval [CI] = −3.2, −1.0), waist circumference (–2.3 in; 95% CI = −4.2, −0.5), and energy intake (–390 kcal/day; 95% CI = −598, −183); an increase in activity (+1637 steps/day; 95% CI = 712, 2562); and an increase in self-efficacy for dietary and physical activity behaviors. Conclusions. Our results suggest that a community-based program can improve self-efficacy, increase physical activity, and decrease energy intake, resulting in decreased waist circumference and body weight among at-risk women.

Karen GlanzKaren Glanz
Karen Glanz
JMJessica Metcalfe
Jessica Metcalfe
SFSara Folta
Sara Folta
Alison G.M. BrownAlison G.M. Brown
Alison G.M. Brown
BFBarbara Fiese
Barbara Fiese
In-home and shared meals have been hypothesized to have positive effects. This narrative review examines research on the influence of in-home eating on diet quality, health outcomes, and family relationships. A combination search approach included a search of PubMed, backward searches of previous published reviews, and studies the authors were familiar with. A search identified 118 publications; 54 original studies and 11 review studies were included in this review. Each study was reviewed and summarized. The diverse designs precluded quantitative data synthesis. Relatively strong evidence from cross-sectional research supports the association of shared family meals with favorable dietary patterns in children and adolescents, including consumption of fruits, vegetables, and healthful nutrients. Correlational evidence links shared meals with health and psychosocial outcomes in youth, including less obesity, decreased risk for eating disorders, and academic achievement. Most evidence is cross-sectional, thus, limiting attribution of causality. There is insufficient evidence to conclude that interventions improve the frequency of shared meals, improve diet, or prevent child obesity. Despite the “common wisdom”, the evidence that in-home, shared meals, per se, have positive effects on diet quality, health outcomes, psychosocial outcomes, and family relationships is limited due to weak research designs and single-item measurement of the independent variable. More research, with stronger designs, is warranted.

28 May 2012 in BMC Public Health
Verified
Journal Article
Open access
PDF file
SFSara Folta
Sara Folta
RSRebecca A Seguin
Rebecca A Seguin
JAJennifer Ackerman
Jennifer Ackerman
MNMiriam E Nelson
Miriam E Nelson
Leadership is critical to making changes at multiple levels of the social ecological model, including the environmental and policy levels, and will therefore likely contribute to solutions to the obesity epidemic and other public health issues. The literature describing the relative leadership styles and strengths of women versus men is mixed and virtually all research comes from sectors outside of public health. The purpose of this qualitative study is to identify specific leadership skills and characteristics in women who have successfully created change predominantly within the food and physical activity environments in their communities and beyond. The second purpose of this study is to understand best practices for training and nurturing women leaders, to maximize their effectiveness in creating social change.

14 March 2019 in Nutrients
Verified
Journal Article
Open access
PDF file
MKMicaela Karlsen
Micaela Karlsen
GRGail T Rogers
Gail T Rogers
AMAkari Miki
Akari Miki
ALAlice H Lichtenstein
Alice H Lichtenstein
SFSara Folta
Sara Folta
NMNicola M. McKeown
Nicola M. McKeown
Public interest in popular diets is increasing, in particular whole-food plant-based (WFPB) and vegan diets. Whether these diets, as theoretically implemented, meet current food-based and nutrient-based recommendations has not been evaluated in detail. Self-identified WFPB and vegan diet followers in the Adhering to Dietary Approaches for Personal Taste (ADAPT) Feasibility Survey reported their most frequently used sources of information on nutrition and cooking. Thirty representative days of meal plans were created for each diet. Weighted mean food group and nutrient levels were calculated using the Nutrition Data System for Research (NDSR) and data were compared to DRIs and/or USDA Dietary Guidelines/MyPlate meal plan recommendations. The calculated HEI-2015 scores were 88 out of 100 for both WFPB and vegan meal plans. Because of similar nutrient composition, only WFPB results are presented. In comparison to MyPlate, WFPB meal plans provide more total vegetables (180%), green leafy vegetables (238%), legumes (460%), whole fruit (100%), whole grains (132%), and less refined grains (−74%). Fiber level exceeds the adequate intakes (AI) across all age groups. WFPB meal plans failed to meet the Recommended Dietary Allowances (RDA)s for vitamin B12 and D without supplementation, as well as the RDA for calcium for women aged 51–70. Individuals who adhere to WFBP meal plans would have higher overall dietary quality as defined by the HEI-2015 score as compared to typical US intakes with the exceptions of calcium for older women and vitamins B12 and D without supplementation. Future research should compare actual self-reported dietary intakes to theoretical targets.