The relationship between high-fat dairy consumption and obesity, cardiovascular, and metabolic disease.
OBJECTIVE
To comprehensively review the data on the relationship between the consumption of dairy fat and high-fat dairy foods, obesity, and cardiometabolic disease.


METHODS
We have conducted a systematic literature review of observational studies on the relationship between dairy fat and high-fat dairy foods, obesity, and cardiometabolic disease. We have integrated these findings with data from controlled studies showing effects of several minor dairy fatty acids on adiposity and cardiometabolic risk factors, and data on how bovine feeding practices influence the composition of dairy fat.


RESULTS
In 11 of 16 studies, high-fat dairy intake was inversely associated with measures of adiposity. Studies examining the relationship between high-fat dairy consumption and metabolic health reported either an inverse or no association. Studies investigating the connection between high-fat dairy intake and diabetes or cardiovascular disease incidence were inconsistent. We discuss factors that may have contributed to the variability between studies, including differences in (1) the potential for residual confounding; (2) the types of high-fat dairy foods consumed; and (3) bovine feeding practices (pasture- vs. grain-based) known to influence the composition of dairy fat.


CONCLUSIONS
The observational evidence does not support the hypothesis that dairy fat or high-fat dairy foods contribute to obesity or cardiometabolic risk, and suggests that high-fat dairy consumption within typical dietary patterns is inversely associated with obesity risk. Although not conclusive, these findings may provide a rationale for future research into the bioactive properties of dairy fat and the impact of bovine feeding practices on the health effects of dairy fat.
Division of Public Health Sciences, Cancer Prevention Program, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N, Mail Stop M4-B402, Seattle, WA, 98109, USA. mkratz@fhcrc.org
Mario
M
Kratz
Ton
T
Baars
Stephan
S
Guyenet
D050154:Adiposity / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects; D002318:Cardiovascular Diseases / Q000453:epidemiology* / Q000209:etiology; D002784:Cholesterol / Q000097:blood; D003611:Dairy Products / Q000032:analysis*; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology / Q000209:etiology; D004041:Dietary Fats / Q000008:administration & dosage* / Q000009:adverse effects; D005951:Glucose Tolerance Test; D006801:Humans; D007249:Inflammation / Q000453:epidemiology / Q000209:etiology; D007333:Insulin Resistance; D024821:Metabolic Syndrome / Q000453:epidemiology* / Q000209:etiology; D009765:Obesity / Q000453:epidemiology* / Q000209:etiology; D012307:Risk Factors
D004041:Dietary Fats; D002784:Cholesterol