The global diet quality score (GDQS) of foods consumed by Nigerian adults

Abstract Background Poor diet quality is a significant and modifiable risk factor associated with numerous non-communicable diseases. Despite its critical importance, there is a paucity of comprehensive data concerning diet quality in Nigeria. In this study, we evaluated the healthiness of food inta...

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Main Authors: Galya Bigman, Sally N. Adebamowo, Nutrition Epidemiology Research of Nigeria (NERON) Group, Clement A. Adebamowo
Format: Article
Language:English
Published: BMC 2025-03-01
Series:Journal of Health, Population and Nutrition
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Online Access:https://doi.org/10.1186/s41043-025-00764-y
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author Galya Bigman
Sally N. Adebamowo
Nutrition Epidemiology Research of Nigeria (NERON) Group
Clement A. Adebamowo
author_facet Galya Bigman
Sally N. Adebamowo
Nutrition Epidemiology Research of Nigeria (NERON) Group
Clement A. Adebamowo
author_sort Galya Bigman
collection DOAJ
description Abstract Background Poor diet quality is a significant and modifiable risk factor associated with numerous non-communicable diseases. Despite its critical importance, there is a paucity of comprehensive data concerning diet quality in Nigeria. In this study, we evaluated the healthiness of food intake among Nigerian adults to identify the factors associated with them and seasonal variations in food consumption patterns. Methods We used a validated semi-quantitative Food Frequency Questionnaire (FFQ). to collect dietary data from adults in Ibadan, Nigeria, on four occasions over two years. We assessed food intake healthiness using the Global Diet Quality Score (GDQS), which ranges from 0 to 49 based on 25 food groups, and its sub-metrics GDQS + (0–32, 16 food groups) and GDQS − (0–17, 9 food groups). We used Generalized Linear Models (GLMs) to examine the relationships between GDQS, demographic factors, and participants’ dietary habits. Results There were 205 participants (110 women, 95 men) with mean(SD) age of 45.0(13.4) years and mean(SD) GDQS of 29.0(4.0). Some 91.7% of the participants had a GDQS ≥ 23, signifying a low risk of poor diet quality. The multivariable analysis showed that the GDQS of those who frequently consumed home-cooked meal was higher than those who did not by 2.04 (95%CI: 0.11 to 4.07). The GDQS + of men was higher than women by 1.64 (95%CI: 0.11 to 3.03). The GDQS − of men was 0.88 lower than that of women (95%CI: − 1.53 to − 0.24), while younger participants (< 40 years) had lower GDQS − compared to older (60 + years) participants (2.51, 95%CI: − 1.58 to − 3.43) indicating a higher intake of unhealthy foods by these groups. Most participants (~ 95%) reported low intake of cruciferous vegetable. Conclusions Despite the overall healthiness of foods consumed by Nigerian adults and low risk of poor diet quality across seasons, men and younger adults tend to consume more unhealthy foods and fewer home cooked meals. Both genders, irrespective of age, had low intakes of cruciferous vegetables. These findings highlight opportunities for targeted interventions to improve the overall healthiness of dietary intakes among Nigerian adults.
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spelling doaj-art-5181658c8a734b6ebc217d5d3bc231652025-08-20T01:57:27ZengBMCJournal of Health, Population and Nutrition2072-13152025-03-0144111610.1186/s41043-025-00764-yThe global diet quality score (GDQS) of foods consumed by Nigerian adultsGalya Bigman0Sally N. Adebamowo1Nutrition Epidemiology Research of Nigeria (NERON) Group2Clement A. Adebamowo3Department of Epidemiology and Public Health, University of Maryland School of MedicineDepartment of Epidemiology and Public Health, University of Maryland School of MedicineDepartment of Research, Center for Bioethics and ResearchDepartment of Epidemiology and Public Health, University of Maryland School of MedicineAbstract Background Poor diet quality is a significant and modifiable risk factor associated with numerous non-communicable diseases. Despite its critical importance, there is a paucity of comprehensive data concerning diet quality in Nigeria. In this study, we evaluated the healthiness of food intake among Nigerian adults to identify the factors associated with them and seasonal variations in food consumption patterns. Methods We used a validated semi-quantitative Food Frequency Questionnaire (FFQ). to collect dietary data from adults in Ibadan, Nigeria, on four occasions over two years. We assessed food intake healthiness using the Global Diet Quality Score (GDQS), which ranges from 0 to 49 based on 25 food groups, and its sub-metrics GDQS + (0–32, 16 food groups) and GDQS − (0–17, 9 food groups). We used Generalized Linear Models (GLMs) to examine the relationships between GDQS, demographic factors, and participants’ dietary habits. Results There were 205 participants (110 women, 95 men) with mean(SD) age of 45.0(13.4) years and mean(SD) GDQS of 29.0(4.0). Some 91.7% of the participants had a GDQS ≥ 23, signifying a low risk of poor diet quality. The multivariable analysis showed that the GDQS of those who frequently consumed home-cooked meal was higher than those who did not by 2.04 (95%CI: 0.11 to 4.07). The GDQS + of men was higher than women by 1.64 (95%CI: 0.11 to 3.03). The GDQS − of men was 0.88 lower than that of women (95%CI: − 1.53 to − 0.24), while younger participants (< 40 years) had lower GDQS − compared to older (60 + years) participants (2.51, 95%CI: − 1.58 to − 3.43) indicating a higher intake of unhealthy foods by these groups. Most participants (~ 95%) reported low intake of cruciferous vegetable. Conclusions Despite the overall healthiness of foods consumed by Nigerian adults and low risk of poor diet quality across seasons, men and younger adults tend to consume more unhealthy foods and fewer home cooked meals. Both genders, irrespective of age, had low intakes of cruciferous vegetables. These findings highlight opportunities for targeted interventions to improve the overall healthiness of dietary intakes among Nigerian adults.https://doi.org/10.1186/s41043-025-00764-yGlobal diet quality scoreNigeriaSeasonsHealthy foodsUnhealthy foods
spellingShingle Galya Bigman
Sally N. Adebamowo
Nutrition Epidemiology Research of Nigeria (NERON) Group
Clement A. Adebamowo
The global diet quality score (GDQS) of foods consumed by Nigerian adults
Journal of Health, Population and Nutrition
Global diet quality score
Nigeria
Seasons
Healthy foods
Unhealthy foods
title The global diet quality score (GDQS) of foods consumed by Nigerian adults
title_full The global diet quality score (GDQS) of foods consumed by Nigerian adults
title_fullStr The global diet quality score (GDQS) of foods consumed by Nigerian adults
title_full_unstemmed The global diet quality score (GDQS) of foods consumed by Nigerian adults
title_short The global diet quality score (GDQS) of foods consumed by Nigerian adults
title_sort global diet quality score gdqs of foods consumed by nigerian adults
topic Global diet quality score
Nigeria
Seasons
Healthy foods
Unhealthy foods
url https://doi.org/10.1186/s41043-025-00764-y
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