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Chin J Integr Med. 2020 Jan 22. doi: 10.1007/s11655-020-3085-8. [Epub ahead of print]

Yogurt Intake Reduces All-Cause and Cardiovascular Disease Mortality: A Meta-Analysis of Eight Prospective Cohort Studies.

Author information

1
Research Institute of Health Development Strategies, Fudan University, Shanghai, 200032, China.
2
School of Public Health, Xuzhou Medical University, Xuzhou, 221004, China.
3
School of Public Health and Management, Weifang Medical University, Weifang, Shandong Province, 261053, China.
4
Department of Epidemiologyand Population Health, Albert Einstein College of Medicine, The Bronx, NY, 10461, USA.
5
Research Institute of Health Development Strategies, Fudan University, Shanghai, 200032, China. haomo03@aliyun.com.

Abstract

OBJECTIVE:

To assess the relationship between yogurt intake and mortality risk from prospective cohort studies.

METHODS:

The PubMed, EMBASE, and Web of Science databases were searched for all records related to yogurt intake and mortality risk [all-cause or cardiovascular disease (CVD) or cancer mortality] before October 1, 2018. The Newcastle-Ottawa Quality Scale was used to estimate the quality of all eligible articles. The results of the highest and lowest categories of yogurt intake in each study were collected and the effect size was pooled using a random effects model. The dose-response analysis was calculated using the generalized least squares trend estimation model.

RESULTS:

Eight eligible cohort studies were included in this meta-analysis. There were 235,676 participants in the 8 studies, and the number of deaths was 14,831. Compared with the lowest category, the highest category of yogurt intake was not significantly related with all-cause mortality [hazard ratio (HR)=0.93; 95% confidence interval (CI): 0.85, 1.01], CVD mortality (HR=0.92; 95% CI: 0.81, 1.03) and cancer mortality (HR=0.97; 95% CI: 0.83, 1.12). These studies were homogenous, since the homogeneity test showed that I2 was 28.7%, 15.1% and 11.8%, respectively. However, yogurt intake ⩾200 g/d was significantly associated with a lower all-cause mortality (HR=0.88; 95% CI: 0.80, 0.96) and CVD mortality (HR=0.87; 95% CI: 0.77, 0.99) in the subgroup analysis. The dose-response analysis showed that yogurt intake of 200 g/d was inversely associated with all-cause mortality (P=0.041, HR=0.95, 95% CI: 0.92, 1.00) and CVD mortality (P=0.009, HR=0.92, 95% CI: 0.86, 0.98), and all of which were linear relationship (P>0.05).

CONCLUSIONS:

This review provided the evidence regarding yogurt intake can reduce all-cause and CVD mortality. Although some positive findings were identified, more high-quality cohort studies and randomized controlled trials are warranted on a possible protective effect of yoghurt on health.

KEYWORDS:

cancer; cardiovascular disease; meta-analysis; mortality; yogurt

PMID:
31970674
DOI:
10.1007/s11655-020-3085-8

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