Peaches and nectarines are closely related fruits, and often mistaken for one another at first glance. The main visible difference is the skin—peaches are fuzzy, while nectarines are smooth—but nutritionally, the comparison is more nuanced. Looking closely at calorie and macronutrient data reveals small but meaningful differences that may matter depending on your dietary goals.
This analysis is based on data from Nutracheck, with both fruits weighed with stone, ensuring a fair, like-for-like comparison.
Calorie Content: Nectarines Are Slightly Higher
When comparing calories across similar serving sizes, nectarines consistently contain more calories than peaches.
- A medium peach (120 g) provides 36 calories
- A medium nectarine (140 g) provides 56 calories
Even at smaller sizes, the trend holds:
- A small peach (77 g) contains just 23 calories
- A small nectarine (115 g) contains 46 calories
This difference is largely explained by higher carbohydrate content in nectarines. Since carbohydrates provide 4 calories per gram, even a small increase adds up quickly.
If calorie minimization is your goal, peaches have a slight edge.
Carbohydrates: The Main Driver of Calories
Carbohydrates are the primary source of calories in both fruits.
- Peaches: 5.2–11.4 g carbs (small to large)
- Nectarines: 9.0–12.6 g carbs (standard to medium)
Nectarines contain more carbs per serving, which explains their higher calorie count. This also means nectarines may taste slightly sweeter and have a marginally higher impact on blood sugar compared to peaches.
For people monitoring carbohydrate intake—such as those managing blood sugar levels—portion size matters more with nectarines.
Protein and Fat: Minor Differences, Minimal Impact
Both fruits are naturally low in protein and fat.
- Protein:
- Peaches: 0.7–1.5 g
- Nectarines: 0.9–1.3 g
- Fat:
- Peaches: 0.1–0.2 g
- Nectarines: 0.3–0.4 g
Fat contributes more calories per gram than carbs or protein, but the amounts here are so small that they have very little impact on total energy intake.
In short, neither fruit is a meaningful source of fat or protein, and neither will significantly affect calorie intake through these macronutrients.
Calories in Context: Are These Amounts High or Low?
A typical fruit serving contains 50–100 calories, and both peaches and nectarines fall well within or below this range.
- A large peach (50 calories) and a medium nectarine (56 calories) each count as one light fruit serving
- Eating 2–3 servings per day of either fruit fits comfortably within the commonly recommended 200–300 calories per day from fruit
Calories only become a concern when fruit intake rises above 400 calories per day, which would require eating multiple large fruits or consuming fruit in more concentrated forms like juice or dried fruit.
Which One Should You Choose?
The choice between peaches and nectarines comes down to preference and purpose, not health concerns.
- Choose peaches if:
- You want the lowest calories possible
- You’re reducing carbohydrate intake
- You prefer a milder sweetness
- Choose nectarines if:
- You enjoy a sweeter, richer flavor
- You don’t mind slightly higher calories
- You want a smooth-skinned fruit with a bit more bite
Final Verdict
From a calorie perspective, both peaches and nectarines are excellent low-energy fruits. Nectarines are modestly higher in calories and carbs, while peaches offer a slightly lighter option per serving. However, the difference is small enough that either fruit can be enjoyed regularly as part of a balanced diet.
In practical terms, choosing peaches or nectarines is less about calories—and more about taste, texture, and portion size.