top of page
  • Writer's picture Emma Mukasa | Registered Nutritionist

Healing Your Gut: The Vital Connection Between Blood Sugar and Digestive Health

When it comes to optimising your health and wellbeing, you might think that your gut and blood sugar levels are two separate concerns.

However, in the world of nutrition and overall wellness, these two aspects are intimately connected.

Through my experience working with IBS clients, I have learnt that you cannot truly fix your gut without first addressing blood sugar dysregulation.

... you cannot truly fix your gut without addressing blood sugar dysregulation.

In this blog post, we'll explore the critical link between blood sugar imbalance and digestive health, shedding light on why this connection is so important.

Understanding Blood Sugar Dysregulation

Before we delve into how blood sugar affects your digestive system, let's first clarify what blood sugar dysregulation means. Your blood sugar, or blood glucose, levels need to be maintained within a relatively narrow range for optimal health. This is achieved through the actions of insulin, a hormone produced by your pancreas.

When you consume carbohydrates, your body breaks them down into glucose, causing a temporary increase in blood sugar levels. Insulin helps transport this glucose into your cells for energy or storage, regulating blood sugar levels. However, when this system becomes imbalanced, you experience blood sugar dysregulation.

Additionally, it's important to note that some clients, particularly those with conditions like Polycystic Ovarian Syndrome (PCOS), can exhibit heightened sensitivity to sugar as a result of insulin resistance.

How Blood Sugar Imbalance Affects Digestive Health

#1 Gut Microbiome Disruption

Your gut is home to trillions of bacteria, viruses, and fungi that make up your gut microbiome. This ecosystem plays a vital role in digestion, nutrient absorption, and overall health. When your blood sugar levels are consistently high, it can disrupt the balance of your gut microbiome. High blood sugar levels promote the growth of harmful bacteria, leading to an overgrowth of harmful pathogens and a decrease in beneficial probiotics. This imbalance, also known as dysbiosis, can result in digestive issues such as gas, bloating, and diarrhoea.

#2 Inflammation

Chronically high blood sugar levels trigger a state of low-grade inflammation throughout your body. This inflammation can extend to your digestive system, leading to a condition known as "leaky gut". In leaky gut syndrome, the lining of your intestines becomes more permeable than it should be, allowing harmful substances to enter the bloodstream. This can lead to a host of digestive issues, autoimmune conditions, and food sensitivities.

#3 Sluggish Digestion

Blood sugar spikes and crashes can also affect the motility of your gastrointestinal tract, which is the coordinated movement of food and other substances through the digestive tract. Rapid blood sugar fluctuations can disrupt this coordinated movement of your digestive organs, leading to symptoms such as constipation or diarrhoea. Additionally, it can impair the secretion of digestive enzymes and bile, which are essential for breaking down and absorbing nutrients from food.

Looking for a tailored solution to address your IBS symptoms? Book a Free 30 Minute Consultation with a registered Nutritional Therapist and discover how it is possible to live a life, free from symptoms of discomfort and pain, and full of energy.

#4 Nutrient Absorption

A well-regulated blood sugar level is crucial for proper nutrient absorption. Elevated blood sugar levels can interfere with the absorption of essential nutrients like vitamins and minerals. Over time, this can result in nutrient deficiencies that impact overall health, including the health of your gut.

#5 Weight Gain and Obesity

Blood sugar dysregulation is closely linked to weight gain and obesity. Excess body fat, particularly around the abdomen, is a significant risk factor for digestive disorders such as acid reflux, gallbladder issues, and fatty liver disease. Maintaining a healthy weight through blood sugar control can mitigate these risks.

#6 Stress and Emotional Wellbeing

Uncontrolled blood sugar levels can also contribute to mood swings, anxiety, and stress. These emotional factors are known to exacerbate IBS symptoms, creating a vicious cycle. Stress management is essential for both blood sugar regulation and IBS management.

A note on Polycystic Ovarian Syndrome (PCOS)

Due to a complex interplay of hormones and metabolic factors, many women with Polycystic Ovarian Syndrome (PCOS), can exhibit heightened sensitivity to sugar . This increased sensitivity can manifest not only in hormonal imbalances but also in digestive symptoms such as bloating and constipation.

In these cases, it is important to address both blood sugar regulation as well as the unique challenges associated with the condition.


The connection between blood sugar and digestive health cannot be overstated. To effectively heal your gut and ensure its optimal functioning, it is essential to address blood sugar dysregulation. A balanced, nutrient-rich diet, regular physical activity, and stress management are key factors in stabilising blood sugar levels.

To effectively heal your gut and ensure its optimal functioning, it is essential to address blood sugar dysregulation.

If you're struggling with digestive issues, consult with a registered nutritionist who can help you create a personalised plan to regulate your blood sugar and support your gut health. Remember that the journey to a healthy gut begins with the proper management of your blood sugar levels.


How a Nutritional Therapist Can Help Your IBS and Blood Sugar Imbalance

Nutritional therapists are experts in assessing and optimising your dietary choices to improve your overall health. They can also play a crucial role in identifying and addressing blood sugar imbalances and their connection to IBS. Here's how:

#1 Functional Testing

Nutritional therapists can order functional tests to evaluate your blood sugar levels and identify any imbalances or insulin resistance. These tests can provide valuable insights into your unique physiology and guide personalised dietary and lifestyle recommendations. They also have access to to wealth of other functional tests, such as comprehensive stool testing.

#2 Personalised Diet Plans

A nutritional therapist will create for you a customised nutrition plan to stabilise your blood sugar levels. This plan typically includes balanced macronutrient ratios, low-glycemic index foods, and regular meal timing. By achieving better blood sugar control, you can mitigate IBS symptoms and improve overall gut health.

#3 Lifestyle Modifications

In addition to dietary recommendations, nutritional therapists can help you implement lifestyle changes to manage stress and improve your emotional wellbeing. These changes can positively impact both blood sugar regulation and IBS symptom management.


Other articles that may interest you

136 views0 comments


bottom of page