Diabetes: Looking Beyond Blood Sugar

Diabetes is on the rise. With nearly one in three Americans estimated to have insulin resistance or prediabetes, this has become an epidemic. Diabetes is a serious condition with multiple potential complications, yet in many cases it can be prevented, controlled, and sometimes even reversed.

So Where Do We Begin?

Is elevated glucose simply your genetics catching up with you, or is something else going on? The answer is often more complex than we once believed. As our understanding of health evolves, we are learning that many factors can influence blood sugar regulation.

Possible Causes of Elevated Blood Sugar

1. Lifestyle Factors

The most straightforward answer is that your lifestyle may need some adjustment. You may be consuming more carbohydrates or sugars than your body can effectively handle. Perhaps your ratio of carbohydrates, protein, and fat needs to be rebalanced. Eating too frequently may also contribute to persistently elevated glucose and insulin levels, since it can take several hours for the body to return to baseline after a meal.

Physical activity is another key factor. Simply moving more and improving your eating patterns are often effective first steps.

2. Environmental Influences

The longer I practice, the more I recognize the impact our environment can have on health. We are exposed daily to heavy metals, endocrine-disrupting chemicals, and pesticides. These compounds may place additional stress on the body’s detoxification systems, particularly the liver.

When the body is burdened by environmental toxins, metabolic processes may be affected. In some individuals, these exposures may contribute to changes in cholesterol or glucose regulation, even when diet and lifestyle are relatively healthy.

3. Gut Health and Dysbiosis

Another possible contributor is dysbiosis, meaning an imbalance within the gut microbiome. Certain bacterial overgrowths or other pathogens may influence blood sugar regulation.

I have seen this many times in practice. After identifying imbalances through advanced stool testing and developing a targeted treatment plan, some patients have experienced improvements in glucose levels.

Genetics Are Not Destiny

Remember, genetics may load the gun, but lifestyle and environment pull the trigger. Although family history increases risk, having a parent or relative with diabetes does not mean the diagnosis has to become your reality.

Start with the Basics

Begin with lifestyle changes and monitor your progress over the next several months. A continuous glucose monitor (CGM) can provide valuable information about how your body responds to different foods and meal patterns. Since everyone’s metabolism is unique, the ideal balance of carbohydrates, protein, and fat may differ from person to person.

In addition to a CGM, several laboratory tests can provide helpful information, including:

• Hemoglobin A1c
• Fasting glucose
• Fasting insulin
• C-peptide

Understanding Your Lab Markers

Hemoglobin A1c

Hemoglobin A1c reflects your average blood glucose over the previous three months. Because it is an average, it can sometimes mask significant highs and lows.

Many functional medicine practitioners aim for an A1c below 5.5%. Monitoring fasting glucose is also important. A fasting glucose above 95 mg/dL may suggest that the body is not clearing glucose efficiently overnight. Ideally, fasting glucose is in the 70–90 mg/dL range.

Fasting Insulin

Fasting insulin can provide insight into metabolism and inflammation. Optimal levels are often considered below 5 µIU/mL, while levels above 10 may warrant further investigation.

C-Peptide

C-peptide reflects how much insulin the pancreas is producing. Levels between 2 and 3 are generally considered ideal. Levels above 4 may indicate that the pancreas is working harder to maintain blood sugar control.

When Lifestyle Changes Are Not Enough

If you see little improvement after two to three months of lifestyle modifications, it may be time to dig deeper. Advanced stool testing or environmental toxin panels may help identify underlying factors contributing to elevated glucose levels.

When bacterial overgrowth or toxin burden is present, the liver and other metabolic systems may become stressed, potentially affecting both glucose and cholesterol metabolism.

Take an Active Role in Your Health

Taking control of your health may require monitoring these markers yourself. Results that fall within the laboratory’s “normal” range may still represent early metabolic dysfunction and may not always raise concern during routine medical visits.

For example, standard laboratory reports do not distinguish between fasting and non-fasting glucose values, making it important to keep track of your own numbers.

An elevated fasting glucose or A1c can be a wake-up call, but it is also an opportunity. Today, there are more tools and strategies available than ever before to improve metabolic health. Diabetes does not have to define your future.