Niyati Parekh
Niyati Parekh
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Professor of Public Health Nutrition
Associate Vice Provost of Faculty Initiatives for the Office of the Provost
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Professional overview
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Dr. Niyati Parekh’s research and teaching are motivated by a deep commitment to reduce nutrition-related disease outcomes in at-risk groups. In pursuit of this goal, as a nutritional epidemiologist, she has developed a robust research portfolio that examines the intersection of biological and behavioral factors of non-communicable diseases in US populations. The overarching theme of her research program is to examine the role of nutrition and diet-related factors in the etiology of non-communicable diseases, with a particular focus on obesity, metabolic dysregulation and cancer. Her multidisciplinary research integrates the intricacies from four distinct areas of expertise: disease biology, nutritional biochemistry, epidemiology and biostatistics. She has developed a research program with three interconnected areas that are unified under the theme of investigating diet and non-communicable diseases in populations, using epidemiologic methods. The first arm consists of leveraging existing data to identify dietary patterns, dietary quality and food consumption patterns in populations of interest. The second is to identify dietary determinants and biomarkers that predict disease outcomes including obesity, diabetes, cardiovascular disease and cancer. The third arm is to measure diets using novel dietary assessment methods that will contribute to more accurate and multi-dimensional measurement of diet. The three areas of her work complement each other and reveal preventive measures for populations, inform health policy and guide clinical practice. She has 75 peer-reviewed publications and her work has been supported by awards from the American Cancer Society and NIH.
Dr. Parekh holds an MS in Clinical Nutrition from Mumbai University and a PhD in Nutritional Sciences with a minor in Population Health Sciences from the University of Wisconsin-Madison (2005). After completing a 2-year postdoctoral fellowship in Cancer Epidemiology at the Cancer Institute of New Jersey-Rutgers, she joined New York University Steinhardt’s Department of Nutrition, Food Studies and Public Health in January 2008. With doctoral and postdoctoral training in epidemiological methods, she cross-pollinated the fields of nutrition and public health. In 2015, as Associate Professor of Public Health Nutrition, she transitioned to NYU’s newly launched School of Global Public Health (GPH), as Director of the Public Health Nutrition program (until 2019). She also has an affiliated appointment at the Department of Population Health-Grossman School of Medicine.
Her recent honors include being inducted as a New York Academy of Medicine Fellow, and her appointment as Independent Consultant at UNICEF. She has served the American Society for Nutrition as Chair of the Nutritional Epidemiology Research Group. She teaches graduate courses in the New York Campus and at study abroad sites (Mexico, Abu Dhabi and Florence). Graduate courses taught include Global Nutrition, Nutritional Epidemiology, Perspectives in Public Health and Global Cancer Epidemiology for which she has received awards. Dr. Parekh has served as the Executive Director of Doctoral Programs at GPH since 2017. In this role, she supports about 30 PhD students, and promotes all aspects of their rigorous research and professional development towards impactful careers.
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Education
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BS, Life Sciences and Biotechnology, Mumbai University, IndiaMS, Foods, Nutrition, and Clinical Dietetics, Mumbai University, IndiaPhD, Nutritional Sciences (minor Population Health Sciences), University of Wisconsin-Madison, Madison, WI
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Areas of research and study
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CancerChronic DiseasesEpidemiologyNutritionObesityPopulation HealthPublic Health Nutrition
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Publications
Publications
‘We know what he likes, even if he doesn’t know’: how the children of South Asian immigrants characterize and influence the diets of their parents
Failed retrieving data from NYU Scholars.A Multi-Stage Dyadic Qualitative Analysis to Disentangle How Dietary Behaviors of Asian American Young Adults are Influenced by Family
Failed retrieving data from NYU Scholars.Concordance between Dash Diet and Hypertension: Results from the Mediators of Atherosclerosis in South Asians Living in America (MASALA) Study
AbstractHussain, B. M., Deierlein, A. L., Kanaya, A. M., Talegawkar, S. A., O’Connor, J. A., Gadgil, M. D., Lin, Y., & Parekh, N. (n.d.).Publication year
2023Journal title
NutrientsVolume
15Issue
16AbstractHigh blood pressure is an important predictor of atherosclerotic cardiovascular disease (ASCVD), particularly among South Asians, who are at higher risk for ASCVD when compared to other population groups. The Dietary Approaches to Stop Hypertension (DASH) dietary pattern is established as the best proven nonpharmacological approach to preventing hypertension in adults. Using data from the Mediators of Atherosclerosis in South Asians Living in America (MASALA) cohort, we calculated a DASH dietary score to examine the association between adherence to the DASH diet and its components, and prevalent and incident hypertension and systolic and diastolic blood pressure, after five years of follow-up. We found that the relative risk ratio (RRR) of incident hypertension was 67% lower among participants in the highest DASH diet score category (aRRR: 0.33; 95% CI: 0.13, 0.82; ptrend = 0.02) compared with those in the lowest DASH diet score category in fully adjusted models. These findings are consistent with previous clinical trials and large prospective cohort studies, adding to evidence that supports the diet-disease relationship established between DASH diet and hypertension. This study is the first to examine DASH diet adherence and hypertension among South Asian adults in the U.S.Development of a Food List to Assess the Diet of South Asians Living in the U.S.: Preliminary Results From a Formative Study
Failed retrieving data from NYU Scholars.Dietary Self-Management Using Mobile Health Technology for Adults With Type 2 Diabetes: A Scoping Review
Failed retrieving data from NYU Scholars.Evaluating the healthfulness of Asian American young adult dietary behaviors and its association with family structure: Disaggregated results from NHIS 2015
Failed retrieving data from NYU Scholars.Family Involvement in Asian American Health Interventions: A Scoping Review and Conceptual Model
Failed retrieving data from NYU Scholars.Food Insecurity and Health Behaviors Among a Sample of Undergraduate Students at an Urban University
AbstractHussain, B. M., Ryan, R., Deierlein, A. L., Lal, S., Bihuniak, J. D., & Parekh, N. (n.d.).Publication year
2023Journal title
Journal of Hunger and Environmental NutritionVolume
18Issue
1Page(s)
65-80AbstractStudents at universities are experiencing food insecurity, which may be associated with health behaviors. In a pilot study to build a survey that assesses food insecurity and health behaviors among undergraduates, we distributed the survey before (Wave 1; fall 2019) and during (Wave 2; summer 2020) COVID-19. During Wave 1, 41% of students reported food insecurity and 61% met criteria for poor sleep. In Wave 2, 26% reported food insecurity and 49% met criteria for poor sleep. Students experiencing food insecurity were more likely to report poor sleep. This survey will inform recruitment and design of a scaled-up multi-campus study. (100/100 words).Identifying and Estimating Ultraprocessed Food Intake in the US NHANES According to the Nova Classification System of Food Processing
Failed retrieving data from NYU Scholars.A need for diet assessment technology for South Asians living in the USA
Failed retrieving data from NYU Scholars.A systematic review of randomized controlled trials examining workplace wellness interventions
Failed retrieving data from NYU Scholars.Development of an Integrated Approach to Virtual Mind-Mapping: Methodology and Applied Experiences to Enhance Qualitative Health Research
Failed retrieving data from NYU Scholars.Food Insecurity, Associated Health Behaviors, and Academic Performance Among Urban University Undergraduate Students
AbstractRyan, R. A., Murphy, B., Deierlein, A. L., Lal, S., Parekh, N., & Bihuniak, J. D. (n.d.).Publication year
2022Journal title
Journal of Nutrition Education and BehaviorVolume
54Issue
3Page(s)
269-275AbstractObjective: To explore associations between food insecurity, health behaviors, and academic performance among undergraduates at a private, urban US university. Methods: A cross-sectional web-based survey was conducted among a convenience sample of New York University undergraduates. Multivariable logistic regression estimated associations of food security (using the 6-item US Household Food Security Survey Module) and health behaviors (fruit/vegetable, beverage and alcohol intakes, and sleep), self-rated health, and academic performance. Results: Of the 257 students who completed the survey, 41% reported food insecurity. Food insecurity was associated with approximately 2-fold higher odds of sugar-sweetened beverage consumption (adjusted odds ratio, 1.97; 95% confidence interval, 1.14–3.41) and fair/poor health (adjusted odds ratio, 2.29; 95% confidence interval, 1.23–4.25). Conclusions and Implications: Increased awareness of food insecurity and associated health behaviors among students has implications for higher education's provision of on-campus food support programs.Mapping drivers of second-generation South Asian American eating behaviors using a novel integration of qualitative and social network analysis methods
Failed retrieving data from NYU Scholars.Perspective: Novel Approaches to Evaluate Dietary Quality: Combining Methods to Enhance Measurement for Dietary Surveillance and Interventions
Failed retrieving data from NYU Scholars.Targeted and Population-Wide Interventions Are Needed to Address the Persistent Burden of Anemia among Women of Reproductive Age in Tanzania
Failed retrieving data from NYU Scholars.Ultra-processed food consumption among US adults from 2001 to 2018
AbstractJuul, F., Parekh, N., Martinez-Steele, E., Monteiro, C. A., & Chang, V. W. (n.d.).Publication year
2022Journal title
American Journal of Clinical NutritionVolume
115Issue
1Page(s)
211-221AbstractBackground: Accumulating evidence links ultra-processed foods to poor diet quality and chronic diseases. Understanding dietary trends is essential to inform priorities and policies to improve diet quality and prevent diet-related chronic diseases. Data are lacking, however, for trends in ultra-processed food intake. Objectives: We examined US secular trends in food consumption according to processing level from 2001 to 2018. Methods: We analyzed dietary data collected by 24-h recalls from adult participants (aged >19 y; N = 40,937) in 9 cross-sectional waves of the NHANES (2001-2002 to 2017-2018). We calculated participants' intake of minimally processed foods, processed culinary ingredients, processed foods, and ultra-processed foods as the relative contribution to daily energy intake (%kcal) using the NOVA framework. Trends analyses were performed using linear regression, testing for linear trends by modeling the 9 surveys as an ordinal independent variable. Models were adjusted for age, sex, race/ethnicity, education level, and income. Consumption trends were reported for the full sample and stratified by sex, age groups, race/ethnicity, education level, and income level. Results: Adjusting for changes in population characteristics, the consumption of ultra-processed foods increased among all US adults from 2001-2002 to 2017-2018 (from 53.5 to 57.0 %kcal; P-trend < 0.001). The trend was consistent among all sociodemographic subgroups, except Hispanics, in stratified analyses. In contrast, the consumption of minimally processed foods decreased significantly over the study period (from 32.7 to 27.4 %kcal; P-trend < 0.001) and across all sociodemographic strata. The consumption of processed culinary ingredients increased from 3.9 to 5.4 %kcal (P-trend < 0.001), whereas the intake of processed foods remained stable at ∼10 %kcal throughout the study period (P-trend = 0.052). Conclusions: The current findings highlight the high consumption of ultra-processed foods in all parts of the US population and demonstrate that intake has continuously increased in the majority of the population in the past 2 decades.Ultra-processed Foods and Cardiometabolic Health Outcomes: from Evidence to Practice
AbstractJuul, F., Deierlein, A. L., Vaidean, G., Quatromoni, P. A., & Parekh, N. (n.d.).Publication year
2022Journal title
Current atherosclerosis reportsVolume
24Issue
11Page(s)
849-860AbstractPurpose of Review: Poor diet quality is the leading risk factor related to the overall cardiometabolic disease burden in the USA and globally. We review the current evidence linking ultra-processed foods and cardiometabolic health risk and provide recommendations for action at the clinical and public health levels. Recent Findings: A growing body of evidence conducted in a variety of study populations supports an association between ultra-processed food intake and increased risk of metabolic syndrome, hypertension, type 2 diabetes, overweight and obesity trajectories, and cardiovascular disease. The strongest evidence is observed in relation to weight gain and obesity among adults, as this association is supported by high-quality epidemiological and experimental evidence. Summary: Accumulating epidemiologic evidence and putative biological mechanisms link ultra-processed foods to cardiometabolic health outcomes. The high intake of ultra-processed foods in all population groups and its associated risks make ultra-processed foods an ideal target for intensive health promotion messaging and interventions.Association between dairy product intake and body composition among South Asian adults from the Mediators of Atherosclerosis in South Asians Living in America (MASALA) study
Failed retrieving data from NYU Scholars.Changing the landscape of South Asian migrant health research by advancing second-generation immigrant health needs
Failed retrieving data from NYU Scholars.Ecological momentary assessment for health behaviors and contextual factors in persons with diabetes: A systematic review
Failed retrieving data from NYU Scholars.Food insecurity among households with children during the COVID-19 pandemic: results from a study among social media users across the United States
Failed retrieving data from NYU Scholars.Longitudinal dimensions of alcohol consumption and dietary intake in the Framingham Heart Study Offspring Cohort (1971-2008)
Failed retrieving data from NYU Scholars.Trends in food consumption by degree of processing and diet quality over 17 years: Results from the Framingham Offspring Study
AbstractJuul, F., Lin, Y., Deierlein, A. L., Vaidean, G., & Parekh, N. (n.d.).Publication year
2021Journal title
British Journal of NutritionVolume
126Issue
12Page(s)
1861-1871AbstractUltraprocessed foods provide the majority of energy content in the American diet, yet little is known regarding consumption trends over time. We determined trends in diet processing level and diet quality from 1991 to 2008 within the prospective Framingham Offspring Cohort. Dietary intakes were collected by FFQ quadrennially 1991-2008 (total of four examinations). The analytical sample included 2893 adults with valid dietary data for ≥3 examinations (baseline mean age = 54 years). Based on the NOVA framework, we classified foods as: unprocessed/minimally processed foods; processed culinary ingredients (salt/sugar/fats/oils); and processed foods and ultraprocessed foods. We evaluated diet quality using the Dietary Guidelines for Americans Adherence Index (DGAI) 2010. Trends in consumption of foods within each processing level (servings/d) and diet quality over the four examinations were evaluated using mixed effects models with subject-specific random intercepts. Analyses were stratified by sex, BMI (<25 kg/m2, 25-29·9 kg/m2, ≥30 kg/m2) and smoking status. Over 17 years of follow-up, ultraprocessed food consumption decreased from 7·5 to 6·0 servings/d and minimally processed food consumption decreased from 11·9 to 11·3 servings/d (Ptrend < 0·001). Changes in intakes of processed foods, culinary ingredients and culinary preparations were minimal. Trends were similar by sex, BMI and smoking status. DGAI-2010 score increased from 60·1 to 61·5, P < 0·001. The current study uniquely describes trends in diet processing level in an ageing US population, highlighting the longstanding presence of ultraprocessed foods in the American diet. Given the poor nutritional quality of ultraprocessed foods, public health efforts should be designed to limit their consumption.Ultra-processed Foods and Cardiovascular Diseases: Potential Mechanisms of Action
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