Peach Glycemic Index

The glycemic index of a peach ranges from about 28 to 56 depending on ripeness and variety, placing it in the low-GI category. A firmer, less ripe peach is at the lower end; a very ripe, soft peach is at the higher end. Because sources genuinely vary, we report a range rather than a single value. In practical terms, peaches are a low-GI fruit suitable for most blood sugar management plans.

Peaches can be a good choice for people with diabetes when eaten in sensible portions. One medium peach has a glycemic load of about 4, which is very low, and provides fiber, vitamin C, and potassium. Their natural sugar is balanced by water and fiber content. However, portion size matters — eating several peaches at once or consuming canned peaches in syrup will increase the glycemic impact. People with diabetes should discuss serving sizes with their care team.

Peaches and nectarines are very similar nutritionally — both are low-GI stone fruits with nearly identical carb and sugar content per serving. Nectarines have slightly more fiber (about 2.4 g vs. 1.9 g per medium fruit) and a similar GI range. Practically, both are excellent low-GI fruit choices and can be used interchangeably in a diabetes-friendly diet.

A medium peach contains about 12 g of net carbs, which fits easily into moderate low-carb plans (50–100 g net carbs/day). On strict keto (under 20–30 g/day), a whole peach uses a significant portion of the daily budget, but half a peach works as a small treat. Peaches are among the lower-sugar fruits and are a better low-carb choice than bananas, grapes, or mangoes.

No — canned peaches in heavy syrup have added sugar that substantially raises both GI and GL. Even 'light syrup' varieties add sugar. Canned peaches in water or their own juice have a GI closer to fresh, though the canning process itself may soften the fruit and modestly raise GI. For the best blood sugar response, choose fresh or frozen unsweetened peaches.