Potatoes are a common and comforting food, but their health effects depend on how they’re used. They are “valued for their affordability, versatility, and comfort,” yet doctors say their impact is more complex than many people think.

One major concern is blood sugar. Because potatoes are high in starch, the body quickly turns them into glucose. This can lead to sharp spikes and drops in blood sugar, especially for those with diabetes or insulin resistance. These swings may cause fatigue or increased hunger.

At the same time, potatoes do offer benefits. They contain vitamin C, potassium, and fiber—especially when eaten with the skin. These nutrients support immunity, heart health, and digestion. When prepared in simple ways like boiling or baking, they can fit well into a balanced diet.

They also provide resistant starch, which helps gut health by feeding beneficial bacteria. This supports digestion and overall wellness. However, these benefits can be reduced when potatoes are fried or loaded with fats.

Preparation and portion size make a big difference. Fried potatoes, chips, and heavily processed versions are high in calories, salt, and unhealthy fats. These can increase the risk of weight gain and heart problems.

Overall, potatoes are not harmful by themselves. “Their impact depends on how they are eaten and in what quantities.” With moderation and healthier cooking methods, they can remain a nutritious part of everyday meals.