New Study Finds French Fries May Increase Diabetes Risk by 20%
A new long-term study has found that regularly eating French fries may significantly increase the risk of developing type 2 diabetes, raising fresh concerns about one of the world’s most popular fast foods.
The research followed more than 205,000 health professionals for nearly 40 years and examined the relationship between potato consumption and diabetes risk. At the start of the study, all participants were free from diabetes, heart disease, and cancer. Over the years, more than 22,000 participants developed type 2 diabetes.
Researchers discovered that the way potatoes are prepared plays a major role in their impact on health. While French fries were linked to a higher risk of diabetes, boiled, baked, and mashed potatoes did not show the same effect.
According to the study, people who ate three servings of French fries per week had a 20% higher risk of developing type 2 diabetes compared to those who consumed them less frequently. In contrast, no significant increase in diabetes risk was found among people who mainly ate boiled or baked potatoes.
Health experts say the difference comes from how French fries are made. Unlike boiled potatoes, fries absorb large amounts of cooking oil during frying and are often served with high levels of salt. They are also commonly part of fast-food meals that may include sugary drinks, processed meats, and other unhealthy foods.
Researchers believe that high-temperature frying can cause chemical changes in food that may affect the body’s ability to regulate blood sugar. Frequent consumption of fried foods has already been linked to obesity, heart disease, and other metabolic disorders.
The study also examined what happens when people replace certain foods in their diets. Researchers found that replacing French fries with whole grains reduced the risk of type 2 diabetes by 19%. Whole grains such as oats, brown rice, barley, and whole wheat provide more fiber and nutrients that help maintain healthy blood sugar levels.
Interestingly, the study found that replacing potatoes with white rice could actually increase diabetes risk, showing that food choices should be evaluated carefully rather than simply removing one item from the diet.
Although the findings show a strong connection between French fries and diabetes risk, researchers stressed that the study does not prove French fries directly cause diabetes. People who eat large amounts of fried foods may also have other lifestyle habits that contribute to the disease, such as lower physical activity levels, smoking, or poor overall diet quality.
However, experts say the results are biologically plausible and consistent with previous research linking fried foods to metabolic health problems. The findings highlight the importance of paying attention not only to what we eat but also how our food is prepared.
Type 2 diabetes is one of the fastest-growing health challenges worldwide. The condition affects millions of people and can lead to serious complications, including heart disease, kidney damage, vision problems, and nerve disorders if left unmanaged.
Doctors recommend maintaining a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats to reduce diabetes risk. Limiting processed and fried foods, staying physically active, and maintaining a healthy weight remain some of the most effective ways to prevent the disease.
While enjoying French fries occasionally is unlikely to cause major health problems, experts advise moderation. Choosing healthier cooking methods such as baking, boiling, or air frying may help reduce potential risks while still allowing people to enjoy their favorite foods.
The study serves as another reminder that small dietary choices made over many years can have a significant impact on long-term health. For people concerned about diabetes prevention, reducing frequent consumption of French fries and choosing healthier alternatives may be a simple but effective step.
