High-Fiber, Low-Carb: 18 Foods and Meals That Do Both

Low-carb eating has one famous side effect nobody puts on the brochure: the moment you cut grains and beans, your fiber intake falls off a cliff — and your digestion notices within the week. But “low-carb” and “high-fiber” aren’t opposites. Fiber is the carb that doesn’t act like one: it isn’t digested into sugar, which is exactly why keto counts net carbs (total minus fiber) in the first place.

These 18 high-fiber, low-carb foods and meal ideas solve both sides of the equation — every item is genuinely low in net carbs while carrying serious fiber.

The high-fiber, low-carb hall of fame

1. Chia seeds — 10g fiber, ~1g net carbs per 2 tbsp. The single best fiber-to-carb ratio in any food.
2. Flaxseed (ground) — 4g fiber, ~0.5g net carbs per 2 tbsp. Invisible in everything.
3. Avocado — 10g fiber, ~3g net carbs per fruit. The low-carb fiber MVP.
4. Raspberries & blackberries — 8g fiber, ~7g net carbs per cup. The lowest-carb fruits are also the highest-fiber ones. Convenient.
5. Almonds — 3.5g fiber per handful, ~2.5g net carbs.
6. Almond flour — ~3g fiber per quarter cup, which is why keto baked goods can quietly be fiber foods.
7. Broccoli & cauliflower — ~2.5g fiber per cup, minimal net carbs, infinitely roastable.
8. Brussels sprouts — 4g fiber per cup, and they’ve been good since 2015; you can come back now.
9. Artichokes — 7g fiber each, one of the highest-fiber vegetables that exists.
10. Coconut flour — 10g fiber per quarter cup; thirsty in recipes but unbeatable on paper.
11. Pumpkin seeds — 2g fiber per handful plus magnesium.
12. Chicory-based low-carb tortillas — check labels; the good ones carry 15g+ fiber per wrap (introduce slowly — chicory fiber bloats some people).

Meal ideas that hit both targets

13. Chia “oatmeal” — chia + almond milk + cinnamon, warmed. Porridge feel, 12g fiber, ~3g net carbs.
14. Big avocado-berry smoothie — avocado, raspberries, spinach, almond butter. 13g fiber, under 10g net carbs.
15. Roasted Brussels & salmon traybake — 8g fiber, dinner in 25 minutes.
16. Cauliflower-walnut taco bowls — spiced roasted cauliflower and walnuts over shredded cabbage. 9g fiber.
17. Almond flour pancakes with blackberries — 7g fiber, weekend-approved.
18. Stuffed artichoke with garlic butter — an event, not a side dish. 7g fiber.

Three notes worth knowing

• Net carbs = total carbs − fiber. High-fiber foods are the ones the math was invented for.
• Digestion on low-carb lives and dies by fiber. If things have… slowed… since going keto, this list is the fix — plus water. Our fibermaxxing guide covers how to ramp up comfortably.
• Seeds are your densest tool: a tablespoon of chia in anything is 5g of fiber for a rounding error of carbs.

Not doing low-carb at dinner? Then raid the full 25 high-fiber dinner ideas — beans and all. And for the sweet tooth, several of our high-fiber desserts (the chia mousse, the almond-flour thumbprints) fit low-carb macros too.

Emma Hartwell

Emma Hartwell is the home cook and recipe developer behind Fiber & Fork. After years of dealing with sluggish digestion and endless afternoon energy crashes, she rebuilt her kitchen around one simple idea: hit 30 grams of fiber a day without eating a single boring meal. Every recipe on this site is cooked, photographed, and taste-tested in her own kitchen — beans, lentils, whole grains, and vegetables turned into food you'll actually crave. When she's not stirring a pot of something cozy, Emma is testing new ways to sneak fiber into desserts her family can't tell apart from the 'real thing'.