Is This Common Food Item Truly Worthy of Its Negative Image?
Written by Susan Parker | Updated on May 28, 2025
Reviewed by Susan Parker
Key Takeaways
Potatoes are nutrient-rich and can help with weight loss.
Potatoes do not negatively impact blood glucose levels.
Boiled potatoes are not associated with higher risk of diabetes.
Frequently Asked Questions
Key Takeaways
Potatoes are nutrient-rich and can help with weight loss.
Potatoes do not negatively impact blood glucose levels.
Boiled potatoes are not associated with higher risk of diabetes.
Frequently Asked Questions
You may have heard warnings about the potential negative effects of consuming white potatoes, such as weight gain, blood sugar issues, and an increased risk of Type-2 diabetes. But are these claims accurate?
It turns out, not really.
Contrary to popular belief, there is insufficient evidence to support the idea that potatoes are responsible for these health concerns. In reality, potatoes are rich in nutrients, offer numerous health benefits, and can even aid in weight loss. Discover the truth about potatoes that will likely bring a smile to the face of any baked potato enthusiast...
Despite enduring a poor reputation over the years, many experts now believe it's time to reassess the value of potatoes.
Potatoes are a great source of essential micronutrients such as vitamin C, B6, and folate, as well as minerals like iron, magnesium, and potassium. Additionally, they contain various phytonutrients, including carotenoids and phenolic acids.
Affordable, gluten-free, and rich in fiber, potatoes are more satiating than other starchy foods like pasta and rice. With just 110 calories per 5.3 oz serving, potatoes offer a compelling nutritional profile.
The negative reputation of white potatoes is largely attributed to their high glycemic index (GI), a measure of how foods impact blood sugar levels post-consumption. Some studies have associated potatoes with obesity, a heightened risk of Type-2 diabetes, and increased blood pressure based on their GI ranking.
However, experts at the University of Toronto argue that the application of the GI to potatoes is misleading and may lead to misguided dietary recommendations. A review of research from 2016 failed to establish a conclusive link between potatoes and the risk of obesity or Type-2 diabetes.
In terms of blood pressure, the high potassium and low sodium content of potatoes suggest they could be beneficial in preventing or managing hypertension, rather than posing a risk. While a population study suggested a connection between potatoes and high blood pressure, the results varied depending on the demographic studied. On the other hand, an experimental trial demonstrated a positive impact of potatoes on blood pressure.
Recent studies emphasize the importance of incorporating potatoes into a balanced diet rather than avoiding them.
A study conducted at Pennington Biomedical Research Center in Baton Rouge, Louisiana, involved 36 participants who were overweight, obese, or had insulin resistance. These individuals were divided into two groups and placed on controlled diets, with one group consuming beans and peas alongside meat or fish, while the other group replaced beans and peas with potatoes.
Lead author Candida Rebello summarized the findings, stating, "Contrary to common belief, potatoes do not negatively impact blood glucose levels. In fact, participants in our study experienced weight loss.
"People tend to consume a consistent weight of food regardless of its calorie content in order to feel full. By opting for foods that are low in calories but have a higher volume, such as potatoes, individuals can effortlessly reduce their caloric intake.
"Our study highlights that maintaining portion sizes while substituting some meat with potatoes can lead to increased satiety and reduced caloric consumption, facilitating weight loss."
Another study by researchers at Edith Cowan University revealed that the potential health risks associated with potatoes may stem more from the toppings used rather than the potatoes themselves...
An analysis of data from 54,793 adults conducted over a 16.3-year period examined the link between vegetable consumption and the incidence of Type-2 diabetes.
The results indicated that individuals with higher vegetable intake had a 21% lower risk of developing Type-2 diabetes compared to those with lower vegetable consumption. While potatoes did not show a protective effect against diabetes, they were not associated with an increased risk either.
Lead author Pratik Pokharel clarified, stating, "Previous studies have suggested a positive correlation between potato consumption and diabetes risk, regardless of preparation method. However, our research indicates that this may not be accurate.
"When differentiating between boiled potatoes and processed forms like mashed potatoes, fries, or chips, boiled potatoes were no longer linked to an elevated diabetes risk."
Pokharel emphasized that individuals who consumed higher amounts of potatoes also tended to have higher intakes of butter, red meat, and sugary beverages, all of which are known to increase the risk of Type-2 diabetes. He recommended preparing potatoes in a healthy manner, such as boiling them, to maximize their nutritional benefits and minimize potential health risks.
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