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Yes, a modest amount. One raw leek or a cup of chopped raw leeks has about 1.6 grams of fiber, and a boiled leek has about 1.2 grams. Leeks fiber is moderate, but leeks also bring vitamin K, manganese and folate, plus fructans that count among their carbohydrates.

Only a little. A cup of chopped raw watercress has about 0.2 grams of fiber, and even 100 grams has just 0.5 grams. Watercress fiber is minimal, yet the same cup delivers about 71% of your daily vitamin K for around 4 calories.

No. A cup of raw arugula has only about 0.3 grams of fiber because the leaves weigh so little, and 100 grams holds about 1.6 grams. Arugula fiber is modest, but the same leaves bring generous vitamin K, folate and calcium for almost no calories.

Yes. A cup of boiled beet greens has about 4.2 grams of fiber for only 39 calories, which is more than a cup of cooked beets. Beet greens fiber comes with over a quarter of your daily potassium and nearly six times the Daily Value for vitamin K.

Mustard greens are a moderate source: a cup of boiled fresh mustard greens has about 2.8 grams of fiber for 36 calories. Frozen mustard greens fiber is higher, at about 4.2 grams per cooked cup, with even fewer calories.

Yes. A cup of chopped, boiled Swiss chard has about 3.7 grams of fiber for only 35 calories. Swiss chard fiber comes with a big dose of vitamin K, magnesium and potassium.

A cup of cooked parsnip slices has about 5.6 to 6.2 grams of fiber, and a cup of raw slices has about 6.5 grams. Parsnips fiber beats carrots, potatoes and most other root vegetables cup for cup.

Yes. A cup of boiled turnip cubes has about 3.1 grams of fiber for only 34 calories, and a medium raw turnip has about 2.2 grams. For more turnips fiber, eat the greens too: a cooked cup of turnip greens has 5 grams.

Not especially. A cup of cooked spaghetti squash has about 2.2 grams of fiber for only 42 calories. Spaghetti squash fiber is modest, but the calorie and carb savings over pasta are big.

Yes. A cup of chopped, boiled fresh collard greens has about 7.6 grams of fiber for roughly 63 calories. Collard greens fiber drops to about 4.8 grams per cup when you start with frozen greens.

Yes. A cup of raw sliced jicama has about 5.9 grams of fiber for only 46 calories, which is more than a cup of raw carrots. Jicama fiber also includes inulin, a carbohydrate researchers study for its prebiotic potential.

A cup of baked butternut squash cubes has about 6.6 grams of fiber for around 82 calories. Raw squash has less per cup, so butternut squash fiber is highest once it is roasted or baked.