A study examined the relationship between potato consumption and heart diseases.

An article about a new study was published in the journal Nutrients. In search of possible correlations, American researchers analyzed the results of seven previous prospective cohort studies, with a total of over 110,000 participants. During the observations, they monitored the dietary habits of individuals, including potato consumption in various cooking methods, along with instances of cardiovascular diseases and hypertension.

The amount of potato consumed (baked, boiled, fried, and mashed) was assessed using validated questionnaires that accounted for portion sizes and frequency of consumption. Data on potato chips were excluded. Participants also provided information about their age, gender, ethnicity, body mass index, lifestyle, and overall diet.

After evaluating risks using Cox regression and adjusting for demographic variables and health factors, the results underwent a meta-analysis using statistical models. Ultimately, the researchers found no significant correlation between overall potato consumption and an increased risk of heart disease, even after considering various factors—demographic, lifestyle, and others.

Consumption of boiled, baked potatoes or mashed potatoes was not associated with hypertension, but a relationship was established in the case of fried potatoes. It turned out that those who consumed a serving of this dish once a week had a 10% higher risk of blood pressure spikes compared to those who did not eat fried potatoes.

This is not the first time researchers have rehabilitated potatoes. Norwegian specialists previously demonstrated on a large sample of compatriots that the consumption of boiled potatoes correlated with a reduced likelihood of death from all causes and cardiovascular diseases. An article on this was published in 2024 by The Journal of Nutrition.

However, in the case of type 2 diabetes, dietitians and doctors still recommend limiting potato intake due to its starch content, which can lead to increased blood glucose levels. Medical professionals advise opting for boiled or stewed potatoes and consuming them no more than a couple of times a week.