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Written by Tou Calo Nutrition Team · Vulcan Labs · Calorie data from USDA FoodData Central. Updated July 2026.

Choosing the best low calorie fruits for weight loss is simpler than most nutrition guides suggest — all fruit is relatively low in calories compared to processed food, but the range between the lowest and highest-calorie options is meaningful. Watermelon at 30 kcal per 100g and dates at 282 kcal per 100g are both “fruit” — but they behave very differently in a calorie deficit. This guide ranks 20 of the best low calorie fruits by exact calories, explains which nutrients matter alongside calories, and shows you which fruits to eat freely and which to limit when you are trying to lose weight.

Context first: No fruit causes weight gain on its own. The question is how much a given fruit costs in calorie terms relative to how full it makes you. Low calorie fruits with high water and fibre content — like berries, watermelon and citrus — deliver the most satiety per calorie, making them the best choices for a calorie deficit. Use our free BMR calculator to find your daily calorie target before adjusting your diet around any specific food group.

In this guide

1. 20 low calorie fruits ranked — exact calories per 100g
2. Full nutrition data — fibre, sugar and protein
3. Best low calorie fruits for weight loss — and why
4. High calorie fruits to limit on a deficit
5. How much fruit should you eat per day?
6. FAQ

20 best low calorie fruits — ranked by calories per 100g (2026)

Data from USDA FoodData Central. All values per 100g raw, unprepared unless noted. Ranked lowest to highest calorie.

Full nutrition data — fibre, sugar and protein per 100g

Calories alone do not tell the full story for low calorie fruits. Fibre slows digestion and increases satiety — a fruit with 60 calories and 6g fibre keeps you fuller than one with 40 calories and 1g fibre. Sugar content matters too, not because fruit sugar is harmful, but because high-sugar fruits are easier to overeat in large quantities.

Key insight: Raspberries and blackberries deliver the best fibre-to-calorie ratio of any low calorie fruits — over 6g of fibre per 100g at under 55 calories. Fibre is the most important dietary factor for appetite control. A cup of raspberries (64 kcal, 8g fibre) keeps you significantly fuller than the same calories from grapes (1.2g fibre).

Best low calorie fruits for weight loss — and why

Not all low calorie fruits are equally effective for weight loss. The best choices combine low calories with high fibre, high water content and reasonable sugar — the combination that produces the most satiety per calorie.

Berries — the best low calorie fruits overall

Strawberries, raspberries and blackberries sit at 33–52 calories per 100g with the highest fibre content of any fruit category. Their deep colour reflects high anthocyanin content — antioxidants linked to reduced inflammation and improved insulin sensitivity. Eat freely as snacks, add to yogurt, oats or smoothies without materially affecting your calorie budget.

Watermelon and melon — highest volume, lowest calories

At 30–36 calories per 100g and 91–92% water content, watermelon and cantaloupe are the best low calorie fruits for eating large volumes. A generous 300g serving of watermelon costs only 90 calories — the same as a small handful of dried fruit. The high water content triggers stretch receptors in the stomach, contributing to satiety even though the fibre content is modest.

Citrus fruits — satiety and Vitamin C

Grapefruit at 42 calories per 100g has been the subject of several weight loss studies. A 2006 study in the Journal of Medicinal Food found that people who ate half a grapefruit before each meal lost more weight than controls — likely due to the combined effect of fibre, water content and the time required to eat citrus. Oranges and clementines provide similar benefits at 47–62 calories per medium fruit.

Apples and pears — fibre and portability

A medium apple at approximately 95 calories is one of the most satiating snacks relative to its calorie cost — partly due to 4.4g of fibre (2.4g per 100g) and partly due to the time required to eat it. Research published in Appetite found that whole fruit produced greater satiety than equivalent calories in juice or purée form — the physical act of chewing matters for appetite regulation.

High calorie fruits to limit on a calorie deficit

These fruits are nutritious but significantly higher in calories than the low calorie fruits above. They are worth limiting — not eliminating — when you are in a meaningful calorie deficit.

Important note on dried fruit: Dried fruit is not a low calorie fruit alternative — it is the same fruit with the water removed, concentrating all calories into a smaller volume. A cup of fresh grapes is 104 calories. A cup of raisins (the same grapes, dried) is 434 calories. Always choose fresh or frozen fruit over dried when eating for weight loss.

How much fruit should you eat per day on a calorie deficit?

The 2020–2025 Dietary Guidelines for Americans recommend 1.5–2 cups of fruit per day for most adults. For someone on a calorie deficit, 2 cups of mixed low calorie fruits costs approximately 100–180 calories — a reasonable allocation that delivers meaningful fibre, vitamins and antioxidants without a significant calorie impact.

Practical approach:

• Freely: Berries, watermelon, grapefruit, melon — eat as much as you want within reasonable portions
• 1–2 servings: Apples, pears, oranges, kiwi, pineapple — nutritious but add up at 50–100 kcal per serving
• Limit: Bananas (89 kcal), grapes (easy to overeat at 67 kcal/100g), dried fruit (250–350 kcal/100g)

Use our calorie deficit calculator to find your daily target, then track fruit alongside your other meals with Tou Calo to keep an accurate count.

Low calorie fruits — FAQ

What is the lowest calorie fruit?

Watermelon is the lowest calorie fruit at 30 calories per 100g — primarily because it is 92% water. Strawberries follow at 33 kcal per 100g, then cantaloupe at 34 kcal. All three are excellent choices for volume eating on a calorie deficit. Use our free BMR calculator to find your daily calorie budget and understand how these fruits fit into your diet.

Are bananas low calorie fruits?

Bananas are not typically classified as low calorie fruits — a medium banana contains approximately 89 calories per 100g and 105 calories total. They are not a poor food choice, but they are significantly more calorie-dense than berries, melon or citrus. On a calorie deficit, limiting to 1 banana per day and pairing it with protein (Greek yogurt, nut butter) helps manage total intake.

Which fruits are best for weight loss?

The best low calorie fruits for weight loss are berries (strawberries, raspberries, blackberries), watermelon, grapefruit and apples — all under 55 calories per 100g with meaningful fibre content that supports satiety. Grapefruit has been specifically studied for its effect on weight loss outcomes. For a sustainable approach, use our calorie deficit calculator to set your daily target, then build meals around high-fibre, low calorie fruits to make that target easier to hit.

Is fruit good or bad for weight loss?

Fruit is neither good nor bad for weight loss — it depends entirely on total calorie context. Fresh fruit is nutritious, high in fibre and water, and generally supports a healthy calorie deficit. The evidence consistently shows that high fruit intake is associated with healthy body weight in population studies. The exception is dried fruit and fruit juice, where water removal concentrates calories significantly and reduces the satiety benefits of whole fruit.

How do low calorie fruits compare to vegetables in calorie count?

Non-starchy vegetables (spinach, broccoli, cucumber) are generally lower in calories than even the lowest calorie fruits — typically 10–35 kcal per 100g versus 30–60 kcal for low calorie fruits. Fruit tends to be higher in natural sugar than vegetables, which increases the calorie count slightly. Both are excellent inclusions in a calorie deficit — fruit provides more natural sweetness and can satisfy sweet cravings with minimal calorie cost compared to processed alternatives.

Disclaimer: This article provides general nutritional information based on USDA FoodData Central data. Individual dietary needs vary. Consult a registered dietitian for personalised nutrition guidance.

Written by Tou Calo Nutrition Team — Vulcan Labs
The team behind Tou Calo AI Calorie Counter. We write evidence-based nutrition guides grounded in USDA data and peer-reviewed research.

Related tools:
BMR Calculator — your resting calorie baseline
TDEE Calculator — total daily calorie burn
Calorie Deficit Calculator — your exact fat loss target