Dairy foods and health: an umbrella review of observational studies

Justyna Godos; Maria Tieri; Francesca Ghelfi; Lucilla Titta; Stefano Marventano; Alessandra Lafranconi; Angelo Gambera; Elena Alonzo; Salvatore Sciacca; Silvio Buscemi; Sumantra Ray; Daniele Del Rio; Fabio Galvano; Giuseppe Grosso

doi:10.1080/09637486.2019.1625035

Dairy foods and health: an umbrella review of observational studies

Justyna Godos, Maria Tieri, Francesca Ghelfi, Lucilla Titta, Stefano Marventano, Alessandra Lafranconi, Angelo Gambera, Elena Alonzo, Salvatore Sciacca, Silvio Buscemi, Sumantra Ray, Daniele Del Rio, Fabio Galvano, Giuseppe Grosso

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Abstract

Evidence on consumption of dairy foods and human health is contradictory. This study aimed to summarize the level of evidence of dairy consumption on various health outcomes. A systematic search for meta-analyses was performed: study design, dose–response relationship, heterogeneity and agreement of results over time, and identification of potential confounding factors were considered to assess the level of evidence. Convincing and probable evidence of decreased risk of colorectal cancer, hypertension and cardiovascular disease, elevated blood pressure and fatal stroke, respectively, was found for total dairy consumption; possible decreased risk of breast cancer, metabolic syndrome, stroke and type-2 diabetes, and increased risk of prostate cancer and Parkinson’s disease was also found. Similar, yet not entirely consistent evidence for individual dairy products was reported. Among potential confounding factors, geographical localisation and fat content of dairy have been detected. In conclusions, dairy may be part of a healthy diet; however, additional studies exploring confounding factors are needed to ascertain the potential detrimental effects.

Original language	English
Pages (from-to)	138-151
Number of pages	14
Journal	International Journal of Food Sciences and Nutrition
Volume	71
Issue number	2
Early online date	14 Jun 2019
DOIs	https://doi.org/10.1080/09637486.2019.1625035
Publication status	Published (in print/issue) - 17 Feb 2020

Bibliographical note

Funding Information:
Author contributions: study conceive and design (J.G., G.G.), data search and selection (J.G., G.G.), data extraction and management (M.T., F.G., S.M., A.L., A.G.), data evaluation and results (J.G., M.T., F.G., L.T., F.G., G.G.), manuscript drafting (J.G., G.G.), critical review of the manuscript (E.A., S.S., S.B., S.R., D.D.R.). All authors revised and approved the final version of the manuscript.

Publisher Copyright:
© 2019, © 2019 Taylor & Francis Group, LLC.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Dairy products
butter
cheese
cohort
evidence
meta-analysis
milk
prospective
umbrella review
yogurt

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/09637486.2019.1625035

2020 Dairy umbrellaAuthor Accepted Manuscript, 1.29 MB

Cite this

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title = "Dairy foods and health: an umbrella review of observational studies",

abstract = "Evidence on consumption of dairy foods and human health is contradictory. This study aimed to summarize the level of evidence of dairy consumption on various health outcomes. A systematic search for meta-analyses was performed: study design, dose–response relationship, heterogeneity and agreement of results over time, and identification of potential confounding factors were considered to assess the level of evidence. Convincing and probable evidence of decreased risk of colorectal cancer, hypertension and cardiovascular disease, elevated blood pressure and fatal stroke, respectively, was found for total dairy consumption; possible decreased risk of breast cancer, metabolic syndrome, stroke and type-2 diabetes, and increased risk of prostate cancer and Parkinson{\textquoteright}s disease was also found. Similar, yet not entirely consistent evidence for individual dairy products was reported. Among potential confounding factors, geographical localisation and fat content of dairy have been detected. In conclusions, dairy may be part of a healthy diet; however, additional studies exploring confounding factors are needed to ascertain the potential detrimental effects.",

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author = "Justyna Godos and Maria Tieri and Francesca Ghelfi and Lucilla Titta and Stefano Marventano and Alessandra Lafranconi and Angelo Gambera and Elena Alonzo and Salvatore Sciacca and Silvio Buscemi and Sumantra Ray and {Del Rio}, Daniele and Fabio Galvano and Giuseppe Grosso",

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Dairy foods and health: an umbrella review of observational studies

Abstract

Bibliographical note

Keywords

UN SDGs

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