Why a Healthy Gut May be Your Secret Weapon to Much Easier Blood Sugar Control

Article Highlights

Gut Microbiome’s Role in Insulin Sensitivity: A balanced gut microbiome supports insulin sensitivity, aiding in efficient glucose uptake by your body’s cells. Disruptions in gut health can impair this process, leading to insulin resistance and unstable blood glucose levels.

Short-Chain Fatty Acids (SCFAs) Enhance Blood Sugar Control: Beneficial gut bacteria produce SCFAs, which play a crucial role in regulating blood glucose levels. SCFAs help reduce inflammation and improve insulin function, contributing to more stable blood sugar management.

Dietary Choices Influence Gut Health and Glucose Regulation: Consuming a diet rich in fiber and fermented foods promotes a healthy gut microbiome. These dietary habits support the growth of beneficial bacteria, enhancing insulin sensitivity and aiding in blood sugar control.

Lifestyle Factors Affect Gut Health and Blood Sugar Stability: Stress, poor sleep, and lack of physical activity can negatively impact gut health, leading to dysbiosis. Addressing these lifestyle factors is essential for maintaining a healthy gut and achieving optimal blood glucose levels.

Imagine having a secret weapon for managing your blood sugar—one that goes beyond insulin, beyond carbs, and straight to the root.

That hidden tool?

Your gut health.

Emerging research now highlights how your gut health plays a critical role in insulin sensitivity, blood sugar improvements, and even the prevention or progression of type 1 diabetes (1, 2).

By supporting your gut with the right foods, lifestyle habits, and supplements, you may be able to manage your blood glucose with more ease, fewer roller coaster blood sugars, and greater long-term stability.

In this article, you’ll discover:

How gut health affects insulin sensitivity
The role of short-chain fatty acids
What to eat (and supplement with) and
Some of the powerful daily habits that support both your gut and your blood sugar levels.

Let’s dig in.

Understanding Blood Sugar Control

Blood sugar (glucose) is your body’s main source of energy.

It fuels cells and organs, and when balanced, supports energy, mood, and long-term health.

Chronic blood glucose roller coasters can lead to a range of health issues, including fatigue, mood swings, and more severe conditions like organ failure or being diagnosed with other autoimmune conditions.

Most of us with blood sugar disorders already know that insulin helps move glucose from the blood into our cells to be used as energy immediately or stored for later use.

Managing blood sugar levels is much more complex than simply “taking enough insulin”.

It’s a daily balancing act that includes:

Timing of meals
Physical activity
Lowering stress
Sleep quality
Hormonal fluctuations
Nutritional choices
Gut health (yes, really!)

When any of these are “off,” it can lead to insulin resistance or impaired insulin production, which make blood sugars harder to calm down (6).

Why Reducing Insulin Resistance Matters for Better Blood Sugars

Insulin resistance means your cells aren’t responding well to insulin, requiring more and more of it to manage blood glucose.

Over time, this can lead to type 2 diabetes or complicate existing type 1 diabetes management.

I think it’s important to note that cardiovascular disease is the #1 leading cause of death not only in the United States, but globally (4).

If you talk to any cardiologist, you’ll likely hear them tell you any A1c above 5.0% is a risk factor for cardiovascular disease risk (5).

This fact should emphasize vital blood sugar management needs to be taken.

There are numerous studies showing that healthy, non-diabetics have a fasting blood glucose range between 72 – 85 mg/dL, which is equal to a 4.1 – 4.6% A1Cs (3).

It shouldn’t surprise you that those within this A1c range typically have longer life expectancies.

So, how can you aim for those numbers without burning out?

Enter: Your gut.

The Gut-Blood Sugar Connection

The gut microbiome is a collection of trillions of microbes living in your digestive tract. And they do way more than just digest food.

Recent studies suggest the critical role gut health plays in blood sugar control and type 1 diabetes development (7).

These tiny gut microbes play a pivotal role in various bodily functions, including (8):

Digestion
Proper immune response
Blood sugar control
Hormonal balance
Nutrition absorption
And more!

Studies show that a healthy gut microbiome can influence how the body processes glucose and responds to insulin (9).

All of this commonly leads to more insulin sensitivity and healthier blood sugars, not to mention the effort is commonly easier, too!

On the flip side, an unhealthy gut (aka dysbiosis) can lead to increased inflammation, insulin resistance, and even trigger or worsen autoimmune conditions like type 1 diabetes.

Beneficial gut bacteria help break down and ferment dietary fibers into short-chain fatty acids (SCFAs), which have been found to improve insulin sensitivity, blood glucose levels, and reduce inflammation (10).

How Gut Health Affects Insulin Sensitivity (and Improves Blood Sugars)

One way gut health affects insulin sensitivity is through the production of SCFAs by the beneficial gut bacteria (11).

SCFAs, such as butyrate, acetate, and propionate, are produced during the fermentation of dietary fibers that cannot be digested.

These SCFAs end up in the colon where most of the gut microbes should be hanging out, which can improve insulin sensitivity through various mechanisms:

Enhanced Glucose Uptake

SCFAs can increase glucose intake by the muscle cells, improving their responsiveness to insulin (12).

This improved muscular activity now also leads to:

the reduction of fat build-up and
increases fat breakdown

What if you’re already physically active?

Insulin sensitivity commonly spikes up, in the best way possible, as well!

At this point, you’ll likely need to focus on reducing insulin levels because low blood sugars are a common result high metabolic efficiency.

Reduced Glucose Production in the Liver

SCFAs can inhibit the liver’s production of glucose (aka gluconeogenesis), helping to limit blood glucose spikes (13).

In other words, this is just another mechanism behind less insulin resistance and better insulin sensitivity.

Proper Gut Barrier Function

The gut microbiota influences the integrity of the gut barrier, which prevents harmful substances from entering the bloodstream, like gluten and other foreign invaders.

A healthy gut barrier prevents endotoxins, which are produced by harmful bacteria, from triggering inflammation and either causing insulin resistance or making it worse (14).

When gut dysbiosis (an unhealthy imbalance of gut microbes) is present, it’s common for many health dysfunctions to occur, including gut health and SCFAs to be lacking on varying levels.

In addition, dysbiosis can compromise the gut barrier further, leading to a condition known as leaky gut.

Dysbiosis is one big factor further associated with (15, 16, 17):

insulin resistance
metabolic disorders
other chronic illnesses and diseases
autoimmunity
type 1 diabetes
type 2 diabetes

Better Regulation of Hormones

SCFAs influence the release of hormones that regulate appetite and metabolism (18).

These hormonal changes can indirectly affect insulin sensitivity and glucose metabolism.

But how?

Overeating high-calorie and low-nutrient-dense foods commonly found in highly processed and junk foods, typically leads to higher blood sugars (19).

Higher SCFA intake is associated with reducing this overeating mechanism (20).

Does this mean you can consume SCFAs and still eat crappy food?

You sure can but the results will likely not be in your blood sugar’s favor.

Gif source: https://tenor.com/cZ8qLg0jUjl.gif

Think of it like being a baseball pitcher with a broken arm, yet you’re still trying to throw with it.

Will this arm ever heal and perform optimally as a result?

Cutting corners like this almost never leads to your desired blood sugar results, so be cautious of this.

The Gut-Brain Axis

Lastly, the gut-blood sugar connection also involves the gut-brain axis, a bidirectional communication network between the gut and the central nervous system.

This axis can influence appetite regulation, energy expenditure, and glucose metabolism (21).

All of these gut health results enabled by SCFAs are crucial for type 1 diabetics, where blood sugar management is already a tightrope act.

Foods That Feed a Healthy Gut (and Happy Blood Glucose Levels)

Nourishing your gut is essential for maintaining a balanced microbiome and supporting overall health.

A diet rich in a variety of nutrient-dense foods can promote the growth of beneficial bacteria, enhance gut barrier function, and improve metabolic health.

Incorporating a variety of gut-friendly foods into your diet can have profound effects on blood sugar control and overall wellness (22).

Fiber-rich foods are particularly beneficial for gut health.

Dietary Fibers

Most dietary fibers are largely found in fruits and vegetables.

These fibers are fermented by your gut microbes into SCFAs, which improve insulin sensitivity and reduce inflammation, as mentioned.

The wider the range of fiber-rich foods in your diet, the more support you’ll get in creating a more diverse and thriving gut microbiome.

Fermented Foods

Fermented foods are another excellent addition to a gut-healthy diet.

Foods such as yogurt, kefir, sauerkraut, kimchi, and kombucha contain live beneficial bacteria, known as probiotics, which can help maintain a balanced gut microbiome.

Fermented foods not only introduce beneficial bacteria but also provide enzymes and bioactive compounds that support digestion, better blood sugars, and metabolic health (23).

Probiotics and Their Impact on Blood Sugar Levels

Probiotics are live microorganisms that offer health benefits when consumed in adequate amounts.

These beneficial bacteria can be found in fermented foods and dietary supplements.

Research has shown that probiotics can positively impact gut health by restoring balance to the gut microbiota, enhancing gut barrier function, and strongly influencing immune responses (24).

And that’s not all.

Certain strains of probiotics have been found to improve insulin sensitivity and reduce blood sugar levels in individuals with metabolic disorders.

For example, the Lactobacillus and Bifidobacterium species have been shown to enhance insulin sensitivity by modulating the gut microbiota, reducing inflammation, and producing SCFAs (23).

These probiotics can also influence the secretion of gut hormones that regulate appetite and glucose metabolism, further contributing to more blood sugar control (25).

Probiotic supplementation can be a valuable tool for individuals looking to improve their gut health and manage blood sugar levels.

However, it is important to choose high-quality probiotic products that contain clinically studied strains and adequate colony-forming units (CFUs).

Additionally, combining probiotics with a gut-friendly diet rich in fiber and fermented foods can maximize their benefits and support overall metabolic health.

Examples of these fibers include soluble fibers, resistant starch, and fermentable fibers which are grouped together as prebiotics.

The live forms of beneficial gut microbes, found in either supplements or the diet, are known as probiotics.

The Importance of Fiber for Gut and Blood Sugar Health

Dietary fiber is a crucial component of a healthy diet, with profound effects on gut health and blood sugar regulation.

Fiber is a type of carbohydrate that the body cannot digest, meaning it passes through the digestive system relatively intact.

There are two main types of dietary fiber: soluble and insoluble, each offering unique benefits for gut health and blood sugar control.

Soluble fiber dissolves in water to form a gel-like substance, which slows down digestion and the absorption of nutrients, including glucose (26).

Some dietary examples of soluble fiber include:

Carrots
Apples
Sweet potatoes
Citrus fruits
Avocados

Soluble fiber helps regulate blood sugar levels by preventing rapid blood glucose spikes and ensuring a steady release of glucose into the bloodstream.

This result is further enabled when we consume these fibers BEFORE any carbs (27).

Specifically, eating carbs last in your meal will reduce blood sugar spike potential if consuming your fibers and proteins first (28).

Because many fiber-rich foods are also moderately high in carbs, I personally supplement with a handful of fibers that will partially solidify in my mouth before swallowing, as previously mentioned.

This has forced me to create my own system of taking these supplements due to its immediate gel-like formation.

This characteristic allows soluble fibers to coat the digestive track, which explains how the glucose spikes are reduced.

Insoluble fiber, on the other hand, adds bulk to the stool and aids in regular bowel movements.

It helps maintain a healthy gut environment by promoting the growth of beneficial bacteria and preventing constipation (29).

Foods rich in insoluble fiber include:

Nuts and seeds
The stems of vegetables, like broccoli or kale
Many salad greens, i.e. spinach, collard greens, etc.
The skins and peels of some fruits and vegetables, like apples and berries

A diet high in both soluble and insoluble fiber can support overall digestive health and contribute to better blood sugar control.

Supplements for Supporting Gut Health and Blood Sugar Control

While a balanced diet and healthy lifestyle are fundamental for maintaining gut health, certain supplements can provide additional support for the gut microbiome and blood sugar regulation.

These supplements can complement dietary and lifestyle efforts, offering targeted benefits for gut and metabolic health.

Here are some key supplements to consider for supporting gut health and stable blood sugar levels.

Probiotic supplements are among the most popular choices for promoting gut health.

High-quality probiotic supplements contain live beneficial bacteria that can help restore balance to the gut microbiota.

Look for products that contain clinically studied strains, such as Lactobacillus and Bifidobacterium, and provide an adequate number of CFUs.

Probiotic supplements can enhance gut barrier function, reduce inflammation, and improve insulin sensitivity (30).

Prebiotic supplements, which provide nourishment for beneficial gut bacteria and help them multiply, can also support a healthy gut microbiome.

Prebiotics are typically dietary fibers that resist digestion and are fermented by gut bacteria.

Common prebiotic ingredients include inulin, fructooligosaccharides (FOS), and galactooligosaccharides (GOS).

These supplements can enhance the growth of beneficial bacteria, improve gut health, and support blood sugar regulation (31).

Are You Missing Anything on a Low-Carb/High-Protein Diet

If you are successful in better reaching your blood sugar targets on a low-carb/high-protein diet, you’ll likely be missing out on many fibers that are commonly higher in carbs.

As a result, there are a variety of different fiber supplements you can choose from that won’t typically raise your blood glucose levels.

Other Holistic Supplement Options for Blood Sugar Support

Certain herbal supplements and nutraceuticals may also offer benefits for gut and metabolic health.

For example, berberine, a compound found in several plants, has been shown to improve insulin sensitivity and lower blood sugar levels (32).

Other supplements, such as curcumin (found in turmeric) and omega-3 fatty acids, and liposomal glutathione have anti-inflammatory properties that can support gut health and reduce the risk of metabolic disorders (33).

If you’d like more info on these foods and supplements, you can read my post on the Dietary Factors that Connect Gut Health, Type 1 Diabetes, and Better Blood Sugars.

In conclusion, the health of your gut plays a pivotal role in regulating blood sugar levels and maintaining overall metabolic health.

Understanding the cause and effects of these gut-promoting tips may help ease your blood sugar management!

Summary

A thriving gut microbiome can enhance insulin sensitivity, reduce inflammation, and support stable blood sugar levels.
By understanding the gut-blood sugar connection and making informed dietary and lifestyle choices, you can harness the power of your gut to achieve better blood sugar control and overall wellness.
Chronic stress can impair health by compromising brain function
Nourishing your gut with fiber-rich foods, incorporating probiotics, and adopting a balanced diet are fundamental steps towards a healthy gut and stable blood sugar levels.
Lifestyle changes such as regular physical activity and stress management can further support gut health and metabolic function.
Supplements, including probiotics, prebiotics, and herbal nutraceuticals, can provide additional support for gut and blood sugar health.

By taking a holistic approach to your health and focusing on nurturing your gut, you can unlock the secrets to better blood sugar management and overall well-being.

Embrace the journey towards a healthier gut and enjoy the benefits of improved energy, mood, and vitality.

Your path to better blood sugar control starts with the health of your gut—unlock its potential and transform your approach to wellness.