The Potato Plot Twist: How You Cook Your Spuds Affects Diabetes Risk
Potatoes are a nutritious food that provide vitamin C, potassium, and fiber, particularly when eaten with the skin. However, scientists have uncovered a surprising finding: the way potatoes are prepared may play a much bigger role in diabetes risk than previously thought.
The latest research suggests that frying potatoes, rather than boiling or baking them, is linked to a higher risk of developing Type 2 diabetes, a chronic condition that affects how the body uses insulin, the hormone that helps regulate blood sugar.
A Surprising Discovery About French Fries
A large study published in The British Medical Journal found that eating French fries was often associated with a 20 percent increase in the risk of Type 2 diabetes. Researchers followed more than 205,000 U.S. adults for nearly four decades, examining how their dietary habits impacted diabetes risk. At the end of the study, 22,299 participants had developed Type 2 diabetes. The researchers found that people who consumed French fries three times a week had a significantly higher risk of developing Type 2 diabetes compared to those who ate potatoes prepared by other methods.
Cooking Methods Matter
Scientists believe deep-frying increases the calorie content and glycemic impact of potatoes. The findings highlight that the problem is not the potato itself but the frying process, which transforms a wholesome vegetable into an ultra-processed, calorie-dense food high in fat and rapidly digestible starch. French fries are high in sodium and unhealthy fats, as well, while boiled or baked potatoes offer a more nutritious alternative.
Making Different Choices for Better Health
The study delivers an important message: potatoes themselves are not the enemy. When prepared by boiling, baking, or steaming, they remain nutritious and can fit into a balanced diet. Opting for a non-fried side dish can go a long way toward protecting long-term metabolic health.
Joisey Thekkumpuram Jojan is a Thermo Scientific staff writer.
Discussion Questions
- Why do you think the cooking method changes the health effects of potatoes?
- What alternatives could you choose instead of French fries?