What does your gut have to do with blood sugar in menopause?

Have you ever noticed yourself fighting to stay awake after lunch or fighting to stay focused on whatever is in front of you?

You’re still doing the work and getting things done. But it takes far more effort than it should.

Then three o’clock rolls around and you’re looking for something sweet.

By the end of the workday, your stomach feels bloated and the waistband that fit perfectly well that morning is starting to feel like a personal attack.

And lately, you may have noticed that you’re gaining weight.

That part is especially confusing because you haven’t really changed anything. You’re eating much the same way. You’re moving. You’re trying to take care of yourself. Yet your body seems to have changed the rules without letting you know.

It’s easy to treat all these symptoms as separate problems.

The afternoon crash gets treated as a blood sugar problem.

The bloating gets filed under digestion.

The weight gain becomes a metabolism problem.

And the brain fog? Let’s blame that on menopause, stress, poor sleep or the fact that you had four meetings that should have been emails.

But your body doesn’t see these as separate problems.

Your gut, immune system, hormones and metabolism are communicating with each other all day long. What happens in one area can absolutely affect what happens somewhere else.

One connection we don’t talk about enough is the relationship between the gut, inflammation and insulin resistance.

So let’s start with insulin.

What insulin is actually trying to do

When you eat carbohydrates, your body breaks them down into glucose, which enters your bloodstream.

That is a completely normal response. Glucose is not the enemy. Your cells use it for energy.

Your pancreas releases insulin to help move that glucose out of your blood and into your cells.

Think of insulin as someone knocking on the cell’s door with a glucose delivery. The cell hears the knock, opens the door and lets the glucose in.

But when the cells become less responsive to insulin, it is as if they’re sitting inside wearing noise-cancelling headphones.

Insulin keeps knocking, but the message isn’t getting through very well.

The pancreas responds by producing more insulin. It turns up the volume and knocks harder because it still has to get glucose out of the bloodstream.

For a while, this can work.

Your blood glucose may stay within the normal range because your pancreas is working harder behind the scenes. That is one reason a normal glucose result doesn’t always tell us the whole metabolic story.

Eventually, the pancreas won’t be able to keep pace with the increased demand. Blood glucose begins to rise, which can lead to prediabetes and eventually type 2 diabetes.

Prediabetes means blood glucose is already higher than normal, even though it has not yet reached the range used to diagnose diabetes. It is also associated with a higher risk of heart disease and stroke.

Insulin resistance is connected with fatty liver disease, rising triglycerides, unhealthy cholesterol levels, high blood pressure and cardiovascular risk too.

Where menopause fits into this

Now let’s add perimenopause and menopause to the conversation because they don’t happen in a separate body either.

Estrogen is involved in the way our cells respond to insulin. As estrogen fluctuates and eventually declines, insulin sensitivity can change.

At the same time, women often begin storing more fat around the abdomen, lose some muscle mass and burn less energy than they did before, even without making drastic changes to how they eat.

Then sleep starts falling apart because of night sweats, anxiety or waking up at three in the morning for absolutely no useful reason.

Poor sleep can make blood sugar regulation harder the following day. It can also increase hunger and cravings and make exercise feel much less appealing because you are exhausted.

This helps explain why a woman can reach midlife and say, “But I haven’t changed anything. Why is my body suddenly responding differently?”

She may not have changed much.

Her hormonal and metabolic environment has.

Menopause doesn’t cause prediabetes, but the transition can expose metabolic vulnerabilities that were easier for the body to compensate for before.

This is another reason I don’t like filing weight gain under “menopause,” cravings under “lack of willpower” and fatigue under “you need to manage stress better.”

The overlap matters.

But what does any of this have to do with your gut?

Certain bacteria living in the gut contain a substance called lipopolysaccharide, or LPS, in their outer wall.

Having these bacteria in your gut is not automatically a problem. They are part of the microbiome.

LPS is meant to remain inside the digestive tract.

When the intestinal barrier becomes more permeable (or “leaky”) , small amounts of LPS can cross into the bloodstream. Your immune system recognizes that it doesn’t belong there and responds with inflammation.

This low-level movement of bacterial cell-wall components into the circulation is called metabolic endotoxemia.

It sounds like the title of a terrifying medical documentary, but the idea is fairly straightforward: something that belongs inside the gut has crossed into the bloodstream, and the immune system reacts.

That inflammatory response can interfere with insulin signalling.

Remember the cells wearing noise-cancelling headphones?

Inflammation can make insulin’s knock even harder for them to hear. The pancreas responds by turning up the volume again and producing more insulin.

Researchers are still working out how much this pathway contributes in different people. Human studies have found connections between markers of LPS exposure, inflammation and insulin-resistant states. Small human trials have also shown that changing the intestinal microbiota can change insulin sensitivity.

That does not give us one perfect microbiome to aim for or one probiotic that fixes insulin resistance.

It tells us that the gut and metabolic health are not operating independently.

This is where health advice becomes far too simple

If we look only at blood sugar, the advice may be to eat fewer carbohydrates.

That sounds straightforward until nobody asks what you’re eating now, whether you’re eating enough, how well you’re sleeping, how much muscle you have, what medications you take or whether you’re in perimenopause.

If we look only at bloating, you may be told to remove gluten, dairy and half your favourite foods.

If we look only at the microbiome, someone may hand you an expensive stool test followed by a supplement protocol designed to kill everything printed in red.

But none of these approaches tells us why your body changed.

When did the symptoms begin?

Did something shift after an infection, antibiotics, surgery or a medication change?

Are your bowels moving regularly?

Are you sleeping?

Are you eating enough protein and fibre to support your muscles, gut bacteria and blood sugar?

What is happening with your glucose, A1C, triglycerides and liver markers?

What changed around perimenopause?

This is the kind of context that gets missed when each symptom is treated as its own small project.

It is also the work we do in my Digestive Clarity Assessment.

I look at your digestion alongside your eating habits, bowel habits, energy, sleep, cravings, medications, supplements, relevant bloodwork and what was happening when your body began to change.

You leave with two or three clear priorities and a personalized plan for the following three weeks.

No enormous protocol.

No expensive gut test.

No pretending your bloating, blood sugar, changing weight and menopause are happening in four different bodies.

Digestive Clarity is currently available for $175.

You can find the details through the link on my profile.

References

Slopien R, et al. Menopause and diabetes: EMAS clinical guide. Maturitas. 2018.

Vrieze A, et al. Transfer of intestinal microbiota from lean donors increases insulin sensitivity in individuals with metabolic syndrome. Gastroenterology. 2012.

Gomes JMG, et al. Metabolic endotoxemia and diabetes mellitus: A systematic review. Metabolism. 2017.

Centers for Disease Control and Prevention. Prediabetes—Your Chance to Prevent Type 2 Diabetes.