More Protein Associated With Moderate Increase in Heart Failure in Men (except for fish and eggs) Interview with:
“mmmm Meat” by Glen MacLarty is licensed under CC BY 2.0
Jyrki Virtanen, PhD
Adjunct professor of nutritional epidemiology
Heli Virtanen, MSc

University of Eastern Finland
Institute of Public Health and Clinical Nutrition
Kuopio, Finland What is the background for this study? What are the main findings?

Response: Previous studies have found that animal sources of protein may have an adverse impact on the risk of cardiovascular diseases, like myocardial infarct, whereas plant sources of protein have had an opposite impact.

In this study we investigated that how protein intake from different dietary sources is associated with developing heart failure in men during the study’s follow-up. During the mean follow-up time of about 22 years, 334 men developed heart failure.

The main finding of the study was that higher protein intake was associated with a moderately higher risk of heart failure and the findings were similar with protein from most dietary sources, although the association was stronger with protein from animal sources. Only protein from fish and eggs were not associated with the risk in our study. Continue reading

Smoked, Charred Meat Raises Increases Carcinogens, Risk of Kidney Cancer Interview with:
Xifeng Wu, M.D., Ph.D
, Professor, Epidemiology
Stephanie Melkonian, Ph.D
University of Texas M. D. Anderson Cancer Center

Medical Research: What is the background for this study? What are the main findings?

Response: This study examines dietary intake of meat-cooking mutagens and genetic risk factors associated with kidney cancer in a population of 659 kidney cancer patients and 699 matched healthy control subjects from the community. We calculated the intake of several cancer-causing carcinogens that are produced when certain types of meat are cooked over an open flame and at high temperatures resulting in the burning, smoking or charring of the meat (for example, during barbequing or pan-frying). We found that kidney cancer patients consumed more red and white meat when compared to the healthy individuals, and also had higher intake of these cancer-causing chemicals created through the meat cooking process. These results suggest that meat intake, and the way we cook our meat, may potentially be linked to risk of kidney cancer. Additionally, we found that individuals with certain genetic variants were more likely to be susceptible to the harmful effects of the cancer-causing mutagens created during the process of cooking meat.

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