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Can eating more potatoes lower risk of heart disease? Study sheds light - Video
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Overview
A recent study published in The Journal of Nutrition found that potato consumption moderately reduces the risk of all-cause mortality and cardiovascular disease-specific mortality in adults.
Potatoes are a staple food in many traditional diets, making them one of the most commonly consumed vegetables worldwide. They are a rich source of potassium, vitamin C, dietary fibers, and numerous bioactive compounds, all of which are essential nutrients that offer cardiovascular health benefits.
However, despite these nutritional advantages, potatoes are often not recommended as a vegetable due to their high starch content. Their high glycemic index has been linked to an increased risk of cardiometabolic diseases.
The latest Nordic Nutrition Recommendations suggest including potatoes in regular diets, but they do not provide specific guidelines due to insufficient evidence. Additionally, past studies examining the relationship between potato consumption and cardiovascular disease-specific mortality have yielded inconsistent results.
In the study, a total of 77,297 adults aged 18 to 64 were enrolled. Participants underwent three cardiovascular health screenings. During each screening, semi-quantitative food frequency questionnaires were used to gather dietary information, which helped calculate weekly potato intake and daily cumulative mean intake.
Information on all-cause and cardiovascular disease-specific mortality was obtained from the Norwegian Cause of Death. Appropriate statistical analyses were conducted to determine the association between potato intake and the risk of all-cause and cardiovascular mortality.
The results showed that men consumed more potatoes than women. Those with higher potato intake were often current smokers, more physically active, and less likely to be obese. Lower potato intake was linked to higher diabetes prevalence.
Participants consuming 14 or more potatoes weekly had a lower risk of all-cause mortality compared to those consuming six or fewer. Each 100 grams per day increase in potato intake reduced the risk of all-cause and cardiovascular mortality by 4%. The significant link between potato intake and reduced cardiovascular mortality was seen only in men.
The findings indicated a modest inverse association between long-term habitual potato intake and the risk of all-cause and cardiovascular disease-specific mortality.
Previous studies that reported either an adverse or no impact on all-cause mortality risk often grouped processed potato products with whole potatoes. Notably, specific methods of preparation significantly influence the nutritional profile of potatoes.
Reference: Arnesen, E. K., Laake, I., Carlsen, M. H., et al. (2024). Potato consumption and all-cause and cardiovascular disease mortality – a long-term follow-up of a Norwegian cohort. The Journal of Nutrition. doi:10.1016/j.tjnut.2024.05.011
Speakers
Anshika Mishra is a dedicated scholar pursuing a Masters in Biotechnology, driven by a profound passion for exploring the intersection of science and healthcare. Having embarked on this academic journey with a passion to make meaningful contributions to the medical field, Anshika joined Medical Dialogues in 2023 to further delve into the realms of healthcare journalism.