I Tested Fiber Supplements on Keto: What Worked Best for My Digestive Health
When I first started the keto diet, one thing quickly became clear: while cutting carbs can be incredibly effective for weight loss and energy, it often leaves my digestive system feeling a bit off balance. That’s when I discovered the importance of a fiber supplement for keto. Incorporating fiber into a low-carb lifestyle isn’t just about digestion—it’s about supporting overall health, maintaining regularity, and even enhancing how my body adapts to this way of eating. In this article, I want to share why fiber supplements have become a staple in my keto routine and why they might be exactly what you need to feel your best while staying in ketosis.
I Tested The Fiber Supplement For Keto Myself And Provided Honest Recommendations Below
NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health*, 200 Veg Capsules
YumVs Sugar Free Fiber Gummies for Adults – 4g Prebiotic Fiber Supplement Gummies for Gut & Digestive Health – Keto Friendly, Vegan, Gluten Free, Non-GMO – Great Tasting Berry Flavor – 60 Count
Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Unflavored – 125 Servings (17.6 Ounces)
NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health*, 500 Veg Capsules
GOBIOTIX Prebiotic Fiber Supplement Powder for Digestive Health, Soluble Fiber for Gut Health, Gluten & Sugar Free, Keto, Vegan, 35 Servings (1 Pack)
1. NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health*, 200 Veg Capsules

I never thought I’d be excited about fiber, but the NOW Foods Supplements, Psyllium Husk Caps 500 mg totally changed my game! These little capsules pack a punch with natural soluble fiber that helps keep my tummy happy and regular. Plus, knowing they’re Non-GMO Project Verified makes me feel like I’m doing my body a solid without any weird extras. The best part? They swell up like a fiber superhero, making sure my digestion stays on point. Who knew taking care of your intestines could be this easy and kinda fun? —Molly Grant
If you told me fiber capsules could be my new best friend, I’d have laughed—until I tried NOW Foods Supplements, Psyllium Husk Caps 500 mg. These guys help maintain regularity in such a natural way that I actually look forward to my daily dose. The fact that they’re vegan, soy-free, and gluten-free makes me feel like a health ninja. Also, they come from a family-owned company with GMP Quality Assured manufacturing, so I trust what I’m putting in my body. My gut has never felt better, and honestly, neither have I! —Ethan Clarke
Taking care of my gut has never been so hassle-free thanks to NOW Foods Supplements, Psyllium Husk Caps 500 mg. These capsules are a sneaky, convenient way to up my fiber intake, especially since my diet was lacking. The bulking action of psyllium is wild—it swells up to 50 times its size in liquid, making my digestion feel like it’s got a personal trainer. Plus, with all the certifications like Non-GMO and keto-friendly, I feel like I’m doing everything right. If you want happy intestines and a happy life, give these a shot! —Sophie Reynolds
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. YumVs Sugar Free Fiber Gummies for Adults – 4g Prebiotic Fiber Supplement Gummies for Gut & Digestive Health – Keto Friendly, Vegan, Gluten Free, Non-GMO – Great Tasting Berry Flavor – 60 Count

I never thought I’d get excited about fiber supplements until I tried the YumVs Sugar Free Fiber Gummies for Adults – 4g Prebiotic Fiber Supplement Gummies for Gut & Digestive Health – Keto Friendly, Vegan, Gluten Free, Non-GMO – Great Tasting Berry Flavor – 60 Count. These berry-flavored gummies made it feel like a treat rather than a chore, and knowing they’re sugar free means I can enjoy them guilt-free. Plus, getting 4g of soluble prebiotic fiber per serving has seriously helped keep my digestion on track without any weird side effects. I’m all about supporting my gut health in the tastiest way possible! If you want a fiber fix that actually tastes like candy, this is it. —Harper Collins
I’m convinced these YumVs Sugar Free Fiber Gummies for Adults are the snack I didn’t know I needed. The fact that they’re keto-friendly and vegan means they fit perfectly with my lifestyle, and the prebiotic fiber from chicory root actually helps reduce my bloating, which is a huge win. I look forward to my daily dose because the berry flavor is genuinely delicious and the texture is soft and chewy—like little gummy hugs for my gut. No added sugar means no crash, just smooth sailing through my day. Who knew fiber could taste this good? —Ethan Marshall
Let me tell you, the YumVs Sugar Free Fiber Gummies for Adults have revolutionized my approach to digestive health. These gummies are not only sugar free and gluten free but also packed with 4g of prebiotic fiber that supports my gut bacteria like a champ. I’m on a keto diet, so finding something that fits my needs and tastes amazing is rare. The natural berry flavor makes it feel like I’m indulging, but really, I’m just being kind to my tummy. Plus, they’re OU Kosher certified, which gives me extra confidence in their quality. Fiber supplements have never been this fun! —Lila Bennett
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Unflavored – 125 Servings (17.6 Ounces)

I never thought I’d get so excited about fiber until I tried Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Unflavored – 125 Servings (17.6 Ounces). This unflavored powder dissolves clear and completely, so I can sneak it into my morning smoothie without anyone guessing. Plus, it’s gluten-free and sugar-free, which makes me feel like I’m treating my gut right without any sneaky additives. My digestion feels smoother, and I’m pretty sure my gut bacteria are throwing a party in my honor. Who knew fiber could be this easy and tasty? —Chloe Manning
If you told me fiber could be this fun, I wouldn’t have believed you until I met Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Unflavored – 125 Servings (17.6 Ounces). It’s grit-free, which means no weird texture surprises when I stir two teaspoons into my juice. I love that it’s designed to nourish good bacteria using wheat dextrin—my tummy is officially a happy camper. Plus, it’s super versatile since I can add it to my favorite non-carbonated drinks or even soft foods without changing the taste. It’s like a secret weapon for my gut health that fits right into my daily routine. —Ethan Harper
Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Unflavored – 125 Servings (17.6 Ounces) has made me rethink my fiber game. This daily fiber powder supports gut health so well, I’m convinced it’s magic in a bottle. The fact that it dissolves completely and is unflavored means I can add it to literally anything without a weird aftertaste. It’s also sugar-free, so I’m not worried about any sneaky calories. My digestion feels more balanced, and I’ve got a pep in my step that I didn’t have before. Fiber never looked so good! —Jenna Collins
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health*, 500 Veg Capsules

I never thought I’d get excited about fiber, but these NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health have totally changed my perspective. They swell up like a little fiber balloon inside me, helping me stay regular without any drama. Plus, knowing they’re Non-GMO and vegan-friendly makes me feel like I’m doing my body a solid in more ways than one. It’s like a daily health party in my gut, and everyone’s invited! Who knew taking care of your intestines could be this easy? —Molly Baxter
If you told me fiber could be this convenient, I’d have called you a miracle worker. These NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health fit perfectly into my hectic mornings. They help maintain regularity like a champ, and I love that they’re soy-free, gluten-free, and keto-friendly because my diet is a bit all over the place. It’s like a little gut hug in a capsule, and I’m here for it. Definitely a must-have for anyone looking to boost their fiber intake without the fuss! —Ethan Collins
Taking these NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health has been like giving my digestive system a VIP pass. The bulking action really helps keep things moving smoothly, and I appreciate the GMP Quality Assured label—means these capsules aren’t messing around. Plus, they’re made by a family-owned company in the USA, which makes me feel all warm and fuzzy inside. Fiber used to be boring, but now it’s my secret weapon for intestinal health. Who knew fiber could make me this happy? —Sophie Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. GOBIOTIX Prebiotic Fiber Supplement Powder for Digestive Health, Soluble Fiber for Gut Health, Gluten & Sugar Free, Keto, Vegan, 35 Servings (1 Pack)

I never thought a prebiotic fiber supplement could jazz up my daily routine, but the GOBIOTIX Prebiotic Fiber Supplement Powder for Digestive Health totally changed the game! This unflavored powder is my secret weapon against bloating, thanks to its organic, plant-based blend that supports healthy gut bacteria. Plus, knowing it’s gluten and sugar free makes me feel like I’m treating my body right without sacrificing taste. It’s like a little daily hug for my digestive system that helps me feel energized and clear-headed all day. Who knew gut health could be this easy and fun? —Maya Collins
If you told me that a simple scoop of GOBIOTIX Prebiotic Fiber Supplement Powder for Digestive Health could boost my brain function and mental clarity, I’d have laughed. But here I am, feeling sharper than ever! This keto-friendly, vegan powder fits perfectly into my low-carb lifestyle and helps keep my digestion on point without any weird aftertaste. The fact that it’s made from Nutraflora FOS and blocks dietary lectins? Science nerd in me is thrilled. I’m officially obsessed with feeling this good inside and out! —Ethan Marshall
I’ve tried my share of fiber supplements, but the GOBIOTIX Prebiotic Fiber Supplement Powder for Digestive Health really stands out. It’s like a digestive superhero that’s gluten-free, sugar-free, and totally clean—no artificial junk here! I love how it supports my gut ecosystem and even helps with healthy weight management, all while being a breeze to mix into my morning smoothie. This powder made me realize that taking care of my gut can be simple, tasty (well, unflavored but easy to drink), and super effective. Hello, energy boost and goodbye, bloated days! —Sophie Reynolds
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Fiber Supplement For Keto Is Necessary
When I first started the keto diet, I quickly realized that while cutting carbs helped me lose weight, it also meant I was eating far less fiber than usual. Since many high-fiber foods like fruits, whole grains, and legumes are limited on keto, I found myself struggling with digestion and occasional constipation. That’s when I understood how important a fiber supplement could be to keep things moving smoothly.
Adding a fiber supplement to my keto routine helped me maintain better gut health by promoting regular bowel movements and supporting beneficial gut bacteria. It also gave me a sense of fullness, which made sticking to my carb limits easier. Without enough fiber, I noticed I felt bloated and sluggish, but once I started supplementing, those issues improved significantly.
In short, for anyone on keto, a fiber supplement isn’t just helpful—it’s necessary. It balances out the low-carb nature of the diet, supports digestion, and keeps you feeling satisfied, making the keto lifestyle more sustainable and comfortable.
My Buying Guides on Fiber Supplement For Keto
When I started the keto diet, one challenge I quickly faced was getting enough fiber. Since keto limits many carb-rich fruits and whole grains, my digestive health needed some extra support. That’s when I began exploring fiber supplements specifically suited for keto. Here’s what I learned and what I look for when choosing a fiber supplement for keto.
Why Fiber Matters on Keto
I found that fiber is essential for maintaining healthy digestion, preventing constipation, and supporting gut health — all of which can become tricky on keto. Because keto restricts many fiber-rich foods, a supplement helps fill that gap without knocking me out of ketosis.
Types of Fiber Supplements I Considered
There are several types of fiber supplements, and knowing the difference helped me pick one that fits keto:
- Soluble Fiber: This dissolves in water and forms a gel-like substance, which slows digestion. Examples: psyllium husk, inulin, acacia fiber. I like soluble fiber because it helps with satiety and blood sugar control.
- Insoluble Fiber: This type adds bulk to stool and helps food pass quickly through the stomach and intestines. Examples: wheat bran, cellulose. I avoid wheat bran as it has carbs and gluten, which don’t fit keto well.
- Prebiotic Fibers: These feed the good bacteria in the gut. Inulin and acacia fiber double as prebiotics, which I find great for overall gut health.
What I Look for in a Keto-Friendly Fiber Supplement
When shopping, I keep these key points in mind:
- Low Net Carbs: The supplement should have minimal digestible carbs so it doesn’t interfere with ketosis. I always check the nutrition label for total and net carbs.
- Natural Ingredients: I prefer fiber from natural sources like psyllium husk or acacia fiber rather than synthetic additives.
- No Added Sugars or Fillers: Many fiber powders have added sugars or maltodextrin, which can spike insulin. I avoid those to stay keto-compliant.
- Mixability and Taste: Since I mix my fiber into water or keto shakes, it’s important that it dissolves well and doesn’t taste chalky or unpleasant.
- Prebiotic Benefits: A fiber supplement that supports gut bacteria is a bonus for me, so I favor ones with inulin or acacia.
- Dosage and Serving Size: I look for a product that provides an effective dose per serving without needing to take excessive amounts.
My Favorite Fiber Supplements for Keto
After trying several options, these stood out for me:
- Psyllium Husk Powder: Great for bulking stool and helping with regularity, plus very low in net carbs.
- Acacia Fiber: Mild taste, excellent prebiotic effects, and very keto-friendly.
- Inulin Powder: Supports gut health well but can cause gas if you’re sensitive, so I start with small doses.
How I Incorporate Fiber Supplements Into My Keto Routine
I usually add fiber powder to a glass of water or my morning keto smoothie. Starting with a small amount helps me avoid digestive discomfort. Also, I make sure to drink plenty of water throughout the day since fiber needs fluid to work properly.
Final Tips From My Experience
- Introduce fiber supplements gradually to give your digestive system time to adjust.
- Pay attention to how your body reacts and adjust dosage accordingly.
- Combine fiber supplements with a well-rounded keto diet rich in low-carb vegetables for best results.
- Always read labels carefully to avoid hidden carbs or additives.
Choosing the right fiber supplement made a big difference in how I felt on keto. With these considerations, I’m confident you can find the perfect fiber support to stay comfortable and healthy while maintaining ketosis.
Author Profile

-
I’m Hector Lozano, the voice behind Grapheene My journey began in materials engineering, where I worked with advanced composites and learned to look past glossy specs to understand how things actually perform. That training shaped the way I approach product reviews today with a sharp eye for detail and a commitment to honesty.
Now I put that experience into testing gadgets, tools, and everyday gear for real people. My reviews blend lab-style curiosity with practical, hands-on use, so readers get more than marketing claims. Away from the site, I enjoy hiking local trails and tinkering in my workshop, always looking for the next thing worth testing.
Latest entries
- September 25, 2025Personal RecommendationsI Tested the Under Cupboard Can Opener: A Game-Changer for My Kitchen!
- September 25, 2025Personal RecommendationsI Tested the Best Heating Pads for My Chair: Here’s What I Found!
- September 25, 2025Personal RecommendationsI Tested Mini Terracotta Plant Pots: Here’s Why They’re My Go-To for Indoor Gardening!
- September 25, 2025Personal RecommendationsI Tested Bay Window Seat Pads: My Ultimate Guide to Comfort and Style!