Can People With Diabetes Eat Potatoes?
Short Answer
Yes. Potatoes can be included in a diabetes-friendly eating pattern — but they are among the more impactful starches, so preparation and portion do the work. A medium boiled potato has a published GI around 78 and a GL of about 25; baking and roasting test higher, boiling and cooling test lower. Sweet potato is generally the gentler choice of the two.
Potato (boiled) — 1 medium potato, boiled (173 g)
| Nutrient | Per serving |
|---|---|
| Carbohydrate | 34.8 g |
| Fiber | 3.1 g |
| Sugars | 1.6 g |
| Protein | 3.3 g |
| GI (published) | 78 (range 62-111, evidence: Strong) |
| Estimated GL | 24.7 — High impact |
What Changes the Impact
- Cooking method: boiled tests lower (GI ~78); baked and roasted test considerably higher (published values up to ~111).
- Cooling: letting boiled potatoes cool — then reheating — creates resistant starch that lowers the response.
- Portion: a medium potato is a full starch serving; a plate of roast potatoes is several.
- The plate: potatoes with protein and vegetables are a different meal than potatoes with bread.
Practical Tips
- Boil rather than bake, roast, or fry.
- Choose small-to-medium potatoes and count them as the meal’s starch.
- Pair with protein and plenty of non-starchy vegetables.
- If you want the gentler root vegetable, see sweet potato.
Diabetes Guidance
The American Diabetes Association does not ban any single food for people with diabetes. It focuses on overall eating patterns, carbohydrate quality, and portion control. See the ADA Food & Nutrition guidance.
Related
Frequently asked questions
Do potatoes spike blood sugar? Potatoes are one of the more impactful starches — a medium boiled potato has a GL of about 25 and a GI near 78. Boiling instead of baking, cooling, and moderate portions reduce the response.
Are sweet potatoes better than potatoes for diabetes? Generally yes, prepared the same way: boiled sweet potato has a lower GI (~63 vs ~78) and more fiber. Cooking method can outweigh the difference — roasted versions of both test much higher.
Can I eat potato salad with diabetes? Yes — boiled-then-cooled potatoes (as in potato salad) develop resistant starch, which lowers the glycemic response. Keep the dressing moderate and the portion sensible.