Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review

Some specific dietary patterns improve glycaemic levels and cardiovascular risk factors better than others. We aimed to identify the most effective dietary patterns using a food-focused approach to improve blood glucose management (primary outcome) and cardiovascular risk factors (secondary outcome)...

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Main Authors: Cathryn Whiteley, Fiona Benton, Louisa Matwiejczyk, Natalie Luscombe-Marsh
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/15/4/861
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author Cathryn Whiteley
Fiona Benton
Louisa Matwiejczyk
Natalie Luscombe-Marsh
author_facet Cathryn Whiteley
Fiona Benton
Louisa Matwiejczyk
Natalie Luscombe-Marsh
author_sort Cathryn Whiteley
collection DOAJ
description Some specific dietary patterns improve glycaemic levels and cardiovascular risk factors better than others. We aimed to identify the most effective dietary patterns using a food-focused approach to improve blood glucose management (primary outcome) and cardiovascular risk factors (secondary outcome) in people with type 2 diabetes. An umbrella review was conducted comparing dietary patterns for the management of these outcomes. Studies published between 2012 and 2022 were identified using PubMed Central, ProQuest, Web of Science, and the Cochrane Database of Systematic Reviews. Thirty systematic reviews met the inclusion criteria. Twenty-two of thirty reviews quantitated (via meta-analyses of over 212 randomised control trials) the effect size of different dietary patterns. Twelve reviews found Low-carbohydrate (LC), Mediterranean (M), Plant-based (PB), and/or Low-glycaemic Index (LGI) diets reduced HbA1c moderately more than control diets (typically a high-carbohydrate, low-fat diet) (i.e., LC: −0.1 to −0.5%; M: −0.3 to −0.5%; PB: −0.2 to −0.4%; LGI −0.2 to −0.5%; all <i>p</i>-value < 0.01). We conclude that Low-carbohydrate, Mediterranean, Plant-based, and Low-glycaemic Index dietary patterns are all clinically effective for people with type 2 diabetes as alternatives to high-carbohydrate, low-fat diets typically used for managing glycaemic levels and CVD risk. However, quality evidence about the sustainability of effects and safety remains limited, warranting future research.
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spelling doaj.art-e5377996f9aa4c43bd006f5ec7ad11922023-11-16T22:29:58ZengMDPI AGNutrients2072-66432023-02-0115486110.3390/nu15040861Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella ReviewCathryn Whiteley0Fiona Benton1Louisa Matwiejczyk2Natalie Luscombe-Marsh3Research and Program Development, Diabetes SA, Hilton, SA 5033, AustraliaResearch and Program Development, Diabetes SA, Hilton, SA 5033, AustraliaCollege of Nursing and Health Sciences, Flinders University, Adelaide, SA 5042, AustraliaResearch and Program Development, Diabetes SA, Hilton, SA 5033, AustraliaSome specific dietary patterns improve glycaemic levels and cardiovascular risk factors better than others. We aimed to identify the most effective dietary patterns using a food-focused approach to improve blood glucose management (primary outcome) and cardiovascular risk factors (secondary outcome) in people with type 2 diabetes. An umbrella review was conducted comparing dietary patterns for the management of these outcomes. Studies published between 2012 and 2022 were identified using PubMed Central, ProQuest, Web of Science, and the Cochrane Database of Systematic Reviews. Thirty systematic reviews met the inclusion criteria. Twenty-two of thirty reviews quantitated (via meta-analyses of over 212 randomised control trials) the effect size of different dietary patterns. Twelve reviews found Low-carbohydrate (LC), Mediterranean (M), Plant-based (PB), and/or Low-glycaemic Index (LGI) diets reduced HbA1c moderately more than control diets (typically a high-carbohydrate, low-fat diet) (i.e., LC: −0.1 to −0.5%; M: −0.3 to −0.5%; PB: −0.2 to −0.4%; LGI −0.2 to −0.5%; all <i>p</i>-value < 0.01). We conclude that Low-carbohydrate, Mediterranean, Plant-based, and Low-glycaemic Index dietary patterns are all clinically effective for people with type 2 diabetes as alternatives to high-carbohydrate, low-fat diets typically used for managing glycaemic levels and CVD risk. However, quality evidence about the sustainability of effects and safety remains limited, warranting future research.https://www.mdpi.com/2072-6643/15/4/861dietary patternstype 2 diabetesumbrella reviewglycaemiaadults
spellingShingle Cathryn Whiteley
Fiona Benton
Louisa Matwiejczyk
Natalie Luscombe-Marsh
Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review
Nutrients
dietary patterns
type 2 diabetes
umbrella review
glycaemia
adults
title Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review
title_full Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review
title_fullStr Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review
title_full_unstemmed Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review
title_short Determining Dietary Patterns to Recommend for Type 2 Diabetes: An Umbrella Review
title_sort determining dietary patterns to recommend for type 2 diabetes an umbrella review
topic dietary patterns
type 2 diabetes
umbrella review
glycaemia
adults
url https://www.mdpi.com/2072-6643/15/4/861
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