Introduction: Vegetarian diet is one of the most consistent diets which has shown long-term health benefits. According to a nationwide survey of adults 18+, 4% of Americans were vegetarians. The dissertation was divided into 3 separate studies and assessed the effect of vegetarian diet in the association between (Study1) childhood ADHD symptoms and young adult weight status; (Study 2) health behaviors and depression in young adults; (Study 3) comparison of weight perception and weight control strategies among vegetarians and non-vegetarians.
Methods: The National Longitudinal Study of Adolescent to Adult Health (Add Health) dataset is a national dataset spanning decades and data collected in 5 phases. All 3 studies used a cross sectional design with phase 3 data. Statistical analysis was performed using SPSS, version 28.
Results: In Study 1, adding vegetarian status saw an 18.5% change in beta slope and statistical significance for ADHD symptoms influencing weight gain (10.098 to 11.969; p=0.031), suggesting vegetarian diet as a confounder. In study 2, there was no difference between vegetarians and non-vegetarians in smoking or drinking (OR: .928; CI: .661-1.303; p>.05). Vegetarians were less sedentary and more physically active (p<.001 for both), and depressive symptoms were similar for both groups (1.39 and 1.40; p=.381). In Study 3, there was no difference between weight status with or without covariates (OR: .787;CI: .573-1.080) and (OR.786; CI: .572-1.080). Adjusting for covariates, vegetarians were more likely to be “obese” (OR: 1.202; CI: .828-1.743) and less likely to be “overweight” (OR: .887; CI: .588-1.338), compared to “underweight/normal” weight. Adjusting for physical activity and sedentary status, vegetarians perceived themselves as less “overweight” (OR:.802: CI: .585-1.100) and were more likely to use weight loss strategies (OR 1.414; CI: 1.030-1.928).
Conclusion: The study findings will help better understand the mental, physical, behavioral, and cognitive outcomes associated with vegetarian status. As vegetarianism has shown many long-term health benefits, further research in this area will help expand understanding of this specific dietary pattern.
","abstract_html":"<p>Introduction: Vegetarian diet is one of the most consistent diets which has shown long-term health benefits. According to a nationwide survey of adults 18+, 4% of Americans were vegetarians. The dissertation was divided into 3 separate studies and assessed the effect of vegetarian diet in the association between (Study1) childhood ADHD symptoms and young adult weight status; (Study 2) health behaviors and depression in young adults; (Study 3) comparison of weight perception and weight control strategies among vegetarians and non-vegetarians.</p> <p>Methods: The National Longitudinal Study of Adolescent to Adult Health (Add Health) dataset is a national dataset spanning decades and data collected in 5 phases. All 3 studies used a cross sectional design with phase 3 data. Statistical analysis was performed using SPSS, version 28.</p> <p>Results: In Study 1, adding vegetarian status saw an 18.5% change in beta slope and statistical significance for ADHD symptoms influencing weight gain (10.098 to 11.969; p=0.031), suggesting vegetarian diet as a confounder. In study 2, there was no difference between vegetarians and non-vegetarians in smoking or drinking (OR: .928; CI: .661-1.303; p>.05). Vegetarians were less sedentary and more physically active (p<.001 for both), and depressive symptoms were similar for both groups (1.39 and 1.40; p=.381). In Study 3, there was no difference between weight status with or without covariates (OR: .787;CI: .573-1.080) and (OR.786; CI: .572-1.080). Adjusting for covariates, vegetarians were more likely to be “obese” (OR: 1.202; CI: .828-1.743) and less likely to be “overweight” (OR: .887; CI: .588-1.338), compared to “underweight/normal” weight. Adjusting for physical activity and sedentary status, vegetarians perceived themselves as less “overweight” (OR:.802: CI: .585-1.100) and were more likely to use weight loss strategies (OR 1.414; CI: 1.030-1.928).</p> <p>Conclusion: The study findings will help better understand the mental, physical, behavioral, and cognitive outcomes associated with vegetarian status. As vegetarianism has shown many long-term health benefits, further research in this area will help expand understanding of this specific dietary pattern.</p>","abstract_has_math":false,"creators":["Masood, Shabana"],"institution":null,"degree_name":"Health Promotion Sciences, PhD","degree_level":"Open Access Dissertation","degree_discipline":"School of Community and Global Health","degree_department":null,"school":null,"contributors":["Alan Stacy","Kim Reynolds"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-01-01T08:00:00Z","date_published":"2024-01-01T08:00:00Z","updated_at":"2026-07-24T01:41:01Z","subjects":["Public Health"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarship.claremont.edu/cgu_etd/883","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Alan Stacy","Kim Reynolds"]},{"key":"dc:creator","label":"Author","values":["Masood, Shabana"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2024-12-06T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["School of Community and Global Health"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Open Access Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Health Promotion Sciences, PhD"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Public Health"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarship.claremont.edu/cgu_etd/883"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Introduction: Vegetarian diet is one of the most consistent diets which has shown long-term health benefits. According to a nationwide survey of adults 18+, 4% of Americans were vegetarians. The dissertation was divided into 3 separate studies and assessed the effect of vegetarian diet in the association between (Study1) childhood ADHD symptoms and young adult weight status; (Study 2) health behaviors and depression in young adults; (Study 3) comparison of weight perception and weight control strategies among vegetarians and non-vegetarians.
Methods: The National Longitudinal Study of Adolescent to Adult Health (Add Health) dataset is a national dataset spanning decades and data collected in 5 phases. All 3 studies used a cross sectional design with phase 3 data. Statistical analysis was performed using SPSS, version 28.
Results: In Study 1, adding vegetarian status saw an 18.5% change in beta slope and statistical significance for ADHD symptoms influencing weight gain (10.098 to 11.969; p=0.031), suggesting vegetarian diet as a confounder. In study 2, there was no difference between vegetarians and non-vegetarians in smoking or drinking (OR: .928; CI: .661-1.303; p>.05). Vegetarians were less sedentary and more physically active (p<.001 for both), and depressive symptoms were similar for both groups (1.39 and 1.40; p=.381). In Study 3, there was no difference between weight status with or without covariates (OR: .787;CI: .573-1.080) and (OR.786; CI: .572-1.080). Adjusting for covariates, vegetarians were more likely to be “obese” (OR: 1.202; CI: .828-1.743) and less likely to be “overweight” (OR: .887; CI: .588-1.338), compared to “underweight/normal” weight. Adjusting for physical activity and sedentary status, vegetarians perceived themselves as less “overweight” (OR:.802: CI: .585-1.100) and were more likely to use weight loss strategies (OR 1.414; CI: 1.030-1.928).
Conclusion: The study findings will help better understand the mental, physical, behavioral, and cognitive outcomes associated with vegetarian status. As vegetarianism has shown many long-term health benefits, further research in this area will help expand understanding of this specific dietary pattern.
"]},{"key":"dc:title","label":"Title","values":["Vegetarian Diet and Health Outcomes"]}]}],"canonical_facts":{"dc:contributor":["Alan Stacy","Kim Reynolds"],"dc:creator":["Masood, Shabana"],"dc:date.available":["2024-12-06T08:00:00Z"],"dc:description.abstract":["Introduction: Vegetarian diet is one of the most consistent diets which has shown long-term health benefits. According to a nationwide survey of adults 18+, 4% of Americans were vegetarians. The dissertation was divided into 3 separate studies and assessed the effect of vegetarian diet in the association between (Study1) childhood ADHD symptoms and young adult weight status; (Study 2) health behaviors and depression in young adults; (Study 3) comparison of weight perception and weight control strategies among vegetarians and non-vegetarians.
Methods: The National Longitudinal Study of Adolescent to Adult Health (Add Health) dataset is a national dataset spanning decades and data collected in 5 phases. All 3 studies used a cross sectional design with phase 3 data. Statistical analysis was performed using SPSS, version 28.
Results: In Study 1, adding vegetarian status saw an 18.5% change in beta slope and statistical significance for ADHD symptoms influencing weight gain (10.098 to 11.969; p=0.031), suggesting vegetarian diet as a confounder. In study 2, there was no difference between vegetarians and non-vegetarians in smoking or drinking (OR: .928; CI: .661-1.303; p>.05). Vegetarians were less sedentary and more physically active (p<.001 for both), and depressive symptoms were similar for both groups (1.39 and 1.40; p=.381). In Study 3, there was no difference between weight status with or without covariates (OR: .787;CI: .573-1.080) and (OR.786; CI: .572-1.080). Adjusting for covariates, vegetarians were more likely to be “obese” (OR: 1.202; CI: .828-1.743) and less likely to be “overweight” (OR: .887; CI: .588-1.338), compared to “underweight/normal” weight. Adjusting for physical activity and sedentary status, vegetarians perceived themselves as less “overweight” (OR:.802: CI: .585-1.100) and were more likely to use weight loss strategies (OR 1.414; CI: 1.030-1.928).
Conclusion: The study findings will help better understand the mental, physical, behavioral, and cognitive outcomes associated with vegetarian status. As vegetarianism has shown many long-term health benefits, further research in this area will help expand understanding of this specific dietary pattern.
"],"dc:identifier":["https://scholarship.claremont.edu/cgu_etd/883"],"dc:subject":["Public Health"],"dc:title":["Vegetarian Diet and Health Outcomes"],"thesis:degree_discipline":["School of Community and Global Health"],"thesis:degree_level":["Open Access Dissertation"],"thesis:degree_name":["Health Promotion Sciences, PhD"]},"updated_at":"2026-07-24T01:41:01Z"}