Diabetes and Your Immune System: Why Infections Raise Blood Sugar

When flu season arrives, colds and infections spread quickly. For most people, these are just minor annoyances. But for people with diabetes or insulin resistance, infections can be dangerous.

During an infection, your immune system fights off viruses and bacteria. This process releases stress hormones (like adrenaline and cortisol), which raise your blood sugar levels. Fever, a common symptom during infections, also increases the need for insulin.

In people with diabetes, high blood sugar weakens the immune system. The body’s defense cells move more slowly, and skin and mucous membranes become drier and weaker. This makes it easier for germs to enter and spread.

While most infections raise blood sugar, stomach infections (with vomiting or diarrhea) can cause sudden drops. If you take insulin but can’t keep food down, hypoglycemia (dangerously low blood sugar) can occur.

You can’t fully prevent a cold, but you can make your immune system stronger:

• Eat a nutrient-rich diet high in vegetables, herbs, legumes, and nuts.

• Get vitamins A, C, D, E, zinc, iron, and selenium.

• Include immune-boosting spices like ginger, turmeric, and chili.

• Choose whole, natural carbs with fiber to keep blood sugar stable.

The Metabolic Balance nutrition plan helps provide balanced, alkaline meals that support both blood sugar control and immunity.

• • Exercise regularly to improve circulation and support your immune system.

  • Get enough sleep — during sleep, your immune cells work better and stress hormones drop, which helps stabilize blood sugar.

  • Avoid smoking and reduce alcohol intake.

Diabetes is a serious metabolic disease, but diet and lifestyle changes can help. Many people have “pre-diabetes” without knowing it. A personalized plan like Metabolic Balance can help keep insulin levels steady and strengthen immunity — all without giving up enjoyable meals.

Infections and high blood sugar can form a dangerous cycle for people with diabetes. By focusing on the right diet, regular movement, and good sleep, you can support your immune system and keep your metabolism in balance.