(Yes, Your Blood Sugar Matters Even If You Don’t Have Diabetes)
Paying attention to your blood sugar levels sounds like a concern for somebody with diabetes—and if you’re not diabetic, you might think you don’t have to worry. The reality is that even non-diabetics should still be aware of their blood sugar levels.
The human body is constantly regulating glucose, aka blood sugar. It’s what your body breaks your food down into and sends to your cells for energy. Diabetes affects the body’s production of the hormone insulin, which regulates blood sugar. That doesn’t mean that your blood sugar levels will always be steady—and it’s worth paying attention because of the way blood sugar affects your energy levels and mood.
Hyperglycemia (high blood sugar): This is a spike in blood sugar you’ll often experience after eating a large amount of sugar or refined carbohydrates. It’s typical to experience a “crash” after a big meal where your blood sugar spikes and then drops quickly. But it can also be caused by severe stress, illness, or certain medications.
Symptoms of high blood sugar include: Fatigue after a big meal, Brain fog or difficulty focusing, Headaches or irritability, Frequent urination. Frequent spikes in blood sugar can lead to complications such as: Weight gain, Inflammation, Increased risk of developing type 2 diabetes, Cardiovascular problems.
Hypoglycemia (low blood sugar): The other extreme is when your body doesn’t have enough glucose in the bloodstream, frequently because you skipped a meal or engaged in heavy exercise without enough food.
Symptoms of low blood sugar include: Dizziness or lightheadedness, Anxiety or irritability, Brain fog or difficulty focusing, Sweating, shaking, or trembling
Should You Be Concerned?
If you don’t have diabetes, your body can usually maintain steady glucose levels except in unusual situations. An occasional high or low means you won’t be feeling your best, but it’s nothing to worry about. However, if you start to notice…
Frequent energy crashes after meals, Strong sugar cravings, Shakiness when hungry, Brain fog or fatigue
…these could indicate insulin resistance or reactive hypoglycemia. That’s worth discussing with your doctor, because you could have prediabetes or another metabolic syndrome—and your doctor could help guide you in making the proper lifestyle adjustments to prevent any progression.
Learn more about tracking blood sugar levels at home and over-the-counter glucose monitors in the article “Benefits (or Not) of Tracking Blood Sugar” from our March 2026 issues.
