Nearly every fruit contains some fiber, but the amounts vary widely. A cup of raspberries packs close to 8 grams, while a cup of watermelon delivers less than 1 gram. Knowing which fruits sit at the top of the list can help you close a common gap: more than 90 percent of women and 97 percent of men fall short of the recommended daily fiber intake, which works out to about 25 grams for most women and 34 grams for most men.
The Highest-Fiber Fruits
Berries consistently top the list. One cup of raspberries or blackberries contains almost 8 grams of fiber, which is more than most high-fiber cereals. Their tiny seeds are packed with insoluble fiber, and the flesh adds soluble fiber on top of that. If you’re looking for the single best fruit to boost your fiber intake, either of these two is a strong choice.
Pears are another standout, with a medium pear providing about 5.5 grams of fiber. A medium apple with the skin on comes in at roughly 4.4 grams. Bananas, oranges, and mangoes each land in the 3 to 4 gram range per serving. Even fruits people think of as lower-fiber, like strawberries and peaches, still contribute 2 to 3 grams per cup.
Here’s a rough ranking of common fruits by fiber per typical serving:
- Raspberries (1 cup): ~8 grams
- Blackberries (1 cup): ~8 grams
- Pear (1 medium): ~5.5 grams
- Apple with skin (1 medium): ~4.4 grams
- Banana (1 medium): ~3 grams
- Orange (1 medium): ~3 grams
- Strawberries (1 cup): ~3 grams
Why the Skin Matters
A medium apple with the skin on contains about 4.4 grams of fiber. Peel it, and you lose a significant portion of that. The skin of most fruits is where insoluble fiber concentrates, the type that adds bulk and helps keep digestion moving. Pears follow the same pattern: per 100 grams, a pear with the skin has over 3 grams of total fiber, most of it insoluble and sitting right in the peel.
This applies broadly. Peaches, plums, nectarines, and grapes all carry a meaningful share of their fiber in the skin. If you’re eating fruit for the fiber benefit, leaving the peel on whenever it’s edible makes a real difference.
Two Types of Fiber in Fruit
Fruits contain both soluble and insoluble fiber, but the ratio shifts depending on the fruit. Soluble fiber dissolves in water and forms a gel-like substance in your stomach that slows digestion. Insoluble fiber stays intact and helps move things through your digestive system.
Oranges lean toward soluble fiber. Per 100 grams, a navel orange has about 1.4 grams of soluble fiber and 1.0 gram of insoluble fiber. That makes oranges particularly useful for slowing sugar absorption and supporting healthy cholesterol levels. Apples and pears tilt the other way. A red delicious apple has roughly 0.7 grams of soluble fiber and 1.5 grams of insoluble fiber per 100 grams. Pears are even more skewed, with about 0.9 grams of soluble fiber and 2.3 grams of insoluble fiber per 100 grams.
You don’t need to track these ratios precisely. Eating a variety of fruits gives you a natural mix of both types.
How Fruit Fiber Affects Blood Sugar
One reason whole fruit doesn’t spike blood sugar the way juice or candy does is its fiber content. Your body doesn’t break down fiber into sugar, so the fiber grams in a piece of fruit effectively dilute its sugar impact. Soluble fiber in particular slows the rate at which sugar enters your bloodstream by forming that gel in your stomach, giving your body more time to respond.
Insoluble fiber plays a role too. It helps increase insulin sensitivity, meaning your cells do a better job of pulling sugar out of the blood. This is part of why whole fruit is consistently linked to better blood sugar control, while fruit juice (which has had most of its fiber removed) is not. A whole orange and a glass of orange juice may contain similar amounts of sugar, but the 3 grams of fiber in the whole fruit change how your body processes it.
Dried Fruit: Concentrated but Calorie-Dense
Drying fruit removes water, which concentrates everything, including fiber, sugar, and calories. A serving of prunes (4 to 5 prunes) has about 3 grams of fiber in just 100 calories. Dried figs, dates, and apricots are similarly fiber-rich per serving. The tradeoff is that it’s easy to eat several servings of dried fruit without realizing it, which adds up in calories quickly. A handful of dried mango might have as much sugar as a candy bar.
If you’re using dried fruit specifically for fiber, prunes and dried figs give you the best return. Pair them with nuts or cheese to slow digestion further.
Getting More Fiber From Fruit
A few practical habits can help you get more fiber from the fruit you’re already eating. Leave skins on apples, pears, peaches, and plums. Choose whole fruit over juice or smoothies, since blending breaks down some of the fiber structure. Swap lower-fiber fruits like grapes or watermelon for raspberries or blackberries when you can. Frozen berries are just as high in fiber as fresh ones and tend to cost less.
Adding two cups of high-fiber fruit to your daily diet can cover roughly half of the gap most people have between what they eat and what they need. Two cups of raspberries alone would deliver about 16 grams of fiber, nearly half the daily recommendation for most adults. Even a single pear and a cup of strawberries gets you to about 8.5 grams, a solid contribution alongside vegetables, whole grains, and legumes.