Gut Feeling: Why Fiber is the Unsung Hero of Low Carb Living

In our vast galaxy of complex nutrition, fats, proteins, and general carbohydrates often take center stage—but fiber is the gravity that holds the entire system together.

Often misunderstood as unimportant filler, fiber suits up as a complex, non-digestible carbohydrate (NDC)¹ that provides essential stability for those navigating low carb or ketogenic landscapes.

In addition, fiber plays a pivotal role in the development and retention of good gut bacteria, disease prevention, and longevity.²

Who else is over the moon about the high fiber content in our stellar Carbonaut products?!

Friends, here’s what you need to know prior to your next grocery shop:

The Core: Digestion and Regularity

Because grain-based terrains are often avoided on a low carb diet, maintaining digestive momentum can be a challenge. This is where fiber saves the day, acting as the planetary cleaning crew for your gut.

Fiber works hard to keep your digestive system happy in the following ways:

Cosmic Broom: Fiber adds bulk to stool and reduces transit time to prevent backup or constipation and encourages your digestive tract to stay active and healthy. It’s like a cosmic broom. Your Best Friend Broom.

Your BFB.

Microbiome Orbit: Fiber feeds the trillions of native inhabitants (aka: gut bacteria) in your large intestine. These microbes ferment fiber into short-chain fatty acids (SCFAs) like butyrate, which provide energy to the colon wall and reduce inflammation and even prevent certain cancers.³

You can add fiber easily and efficiently to your daily diet by incorporating Carbonaut products into your meal plans.

The Atmosphere: Satiety and Weight Control

A high-fiber atmosphere creates a natural pressure that curbs hunger signals. By consuming more fiber, you eat less food.

It’s that simple.

Here’s how fiber keeps you feeling satisfied:

Keeping your tank full: Fiber dissolves in water to form a viscous gel that slows gastric emptying. This keeps you feeling full longer, preventing the cravings that often derail weight loss efforts.

Natural GLP-1: The SCFAs produced during fiber fermentation stimulate gut hormones like GLP-1 and peptide YY, which naturally signal the brain that the fuel tanks are full.⁴

By consuming high quality foods that yield good amounts of fiber, you eat less, feel full for longer, and ensure a healthy digestive tract. It’s nature’s weight loss/weight maintenance solution.

It’s natural, it’s healthy, it’s easy. And? It’s affordable.

Find a plethora of fabulous high fiber Carbonaut recipes on our website!

The Magnetosphere: Blood Sugar Balance

For those on low carb missions to manage diabetes or insulin resistance, fiber acts as a protective shield. Captain Fiber slows glucose uptake and smooths sugar spikes.

(Psst: this is where the superhero bit comes in…)

Blunting the Spike: Fiber forms a gelatinous barrier in the small intestine, slowing the absorption of sugar into the bloodstream.⁵

Preventing the Crash: Both types of fiber (soluble and insoluble) have been shown to enhance how cells respond to insulin, ensuring your body processes glucose efficiently without crashing. Research shows that individuals with type 2 diabetes who consume plenty of fiber daily significantly improved their glycemic control compared to lower intakes.⁶

In fact, a recent (2024) study titled Increasing dietary fiber intake for type 2 diabetes mellitus management: A systematic review concludes:

DF (dietary fiber) represents a valuable strategy in the treatment of type 2 diabetes, improving health outcomes. DF intake offers the potential to improve quality of life and reduce complications and mortality associated with diabetes. Likewise, through supplements or enriched foods, DF contributes significantly to the control of several markers such as HbA1c, blood glucose, triglycerides, low-density lipoprotein, and body weight.⁷

The Plan: Learning about Low cARB FibER Sources

You can know everything there is to know about why fiber is so important (especially when living a low carb diet), but without a plan, the knowledge falls flat earth. By meal planning, grocery shopping for specific ingredients, and sticking to your weekly menu schedule, you give yourself the best chance for success when it comes to adequate fiber intake.

To hit your recommended daily target (whatever that may look like for you), consider these low-impact planet-side fiber resources:

• Carbonaut: All Carbonaut products are very high in fiber. That’s what makes them low net carb (total carbohydrate minus total fiber equals net carbs).
• Leafy Greens: Spinach, kale, and chard.
• Cruciferous Stars: Broccoli, cauliflower, and brussel sprouts.
• Seeds & Nuts: Chia seeds, flaxseeds, almonds, and walnuts.
• Berries: Raspberries and blackberries provide high fiber with minimal net carbs.

By prioritizing fiber, you don’t just survive on a low carb diet—you create a thriving, self-sustaining ecosystem, full of energy and adventure.

Friends, we love providing you with science-backed information that really helps! Feel free to reach out via social or email with ideas for future newsletter topics.

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Check out our delicious recipes!

1. Rastall, R. A., Diez-Municio, M., Forssten, S. D., Hamaker, B., Meynier, A., Moreno, F. J., Respondek, F., Stahl, B., Venema, K., & Wiese, M. (2022). Structure and function of non-digestible carbohydrates in the gut microbiome. Beneficial microbes, 13(2), 95–168. https://doi.org/10.3920/BM2021.0090 ↩︎
2. Alahmari L. A. (2024). Dietary fibre influence on overall health, with an emphasis on CVD, diabetes, obesity, colon cancer, and inflammation. Frontiers in nutrition, 11, 1510564. https://doi.org/10.3389/fnut.2024.1510564 ↩︎
3. Karim, M. R., Iqbal, S., Mohammad, S., Morshed, M. N., Haque, M. A., Mathiyalagan, R., Yang, D. C., Kim, Y. J., Song, J. H., & Yang, D. U. (2024). Butyrate’s (a short-chain fatty acid) microbial synthesis, absorption, and preventive roles against colorectal and lung cancer. Archives of microbiology, 206(4), 137. https://doi.org/10.1007/s00203-024-03834-7 ↩︎
4. Akhlaghi M. (2024). The role of dietary fibres in regulating appetite, an overview of mechanisms and weight consequences. Critical reviews in food science and nutrition, 64(10), 3139–3150. https://doi.org/10.1080/10408398.2022.2130160 ↩︎
5. Giuntini, E. B., Sardá, F. A. H., & de Menezes, E. W. (2022). The Effects of Soluble Dietary Fibres on Glycemic Response: An Overview and Futures Perspectives. Foods (Basel, Switzerland), 11(23), 3934. https://doi.org/10.3390/foods11233934 ↩︎
6. Nitzke, D., Czermainski, J., Rosa, C., Coghetto, C., Fernandes, S. A., & Carteri, R. B. (2024). Increasing dietary fibre intake for type 2 diabetes mellitus management: A systematic review. World journal of diabetes, 15(5), 1001–1010. https://doi.org/10.4239/wjd.v15.i5.1001 ↩︎
7. Nitzke, D., Czermainski, J., Rosa, C., Coghetto, C., Fernandes, S. A., & Carteri, R. B. (2024). Increasing dietary fiber intake for type 2 diabetes mellitus management: A systematic review. World journal of diabetes, 15(5), 1001–1010. https://doi.org/10.4239/wjd.v15.i5.1001 ↩︎