Early Signs of Insulin Resistance: What to Watch For and What Helps
Updated: Oct 24
Quick answer:
Early signs of insulin resistance include belly weight that won't budge, sugar and carb cravings, energy crashes after meals, getting hungry soon after eating, trouble losing weight, skin tags, and dark, velvety patches of skin on the neck or armpits. Insulin resistance often shows up years before prediabetes or diabetes, and the good news is that it can often be improved when it's caught early.
You're doing your best to eat right, but the weight keeps settling around your middle. You crash every afternoon, you're hungry again an hour after eating, and the sugar cravings won't let up. Your blood work might even look fine on paper. If that sounds familiar, insulin resistance may be part of the picture.
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What is insulin resistance?
Insulin is the hormone that moves sugar out of your blood and into your cells for energy. With insulin resistance, your cells stop responding well to it, so your body has to make more and more insulin to keep your blood sugar in range. For a while, that works. But high insulin makes it easier to store fat, especially around the middle, and harder to burn it. Over time, it can lead to prediabetes and type 2 diabetes.
What are the early signs of insulin resistance?
Insulin resistance can build quietly for years. These are some of the most common early signs.
1. Belly weight that won't budge
Weight that settles around your middle, even when the rest of you is fairly lean, is one of the most common signs.
2. Sugar and carb cravings
Strong cravings, especially in the afternoon or after meals, can be a sign your blood sugar and insulin are swinging.
3. Energy crashes after meals
Feeling sleepy, foggy, or drained after eating, especially after carb-heavy meals, is a common early clue.
4. Getting hungry soon after eating
High insulin can leave you hungry again quickly, even after a full meal.
5. Trouble losing weight
When insulin stays high, your body holds onto fat more easily, which can make weight loss feel nearly impossible.
6. Skin tags and dark skin patches
Small skin tags and dark, velvety patches of skin on the back of the neck, armpits, or groin can be linked to high insulin levels.
7. Other warning signs
High blood pressure, high triglycerides, low HDL ("good") cholesterol, fatty liver, and irregular periods or PCOS in women are also linked to insulin resistance.
What causes insulin resistance?
Common contributors include carrying extra weight around the middle, not moving much, a diet heavy in sugar and refined carbs, poor sleep, ongoing stress, family history, hormone changes like menopause, and some medications.
Can insulin resistance be reversed?
In many cases, yes, especially when it's caught early. Moving more, building muscle, eating balanced meals with protein and fiber, sleeping well, and managing stress can all help your cells respond better to insulin. Research has shown that losing even 5 to 7 percent of body weight, along with regular activity, can greatly lower the risk of developing type 2 diabetes.
One thing you can try today
Take a 10-minute walk after your biggest meal. Moving your muscles after eating helps pull sugar out of your blood without needing as much insulin. And start that meal with protein and vegetables before you eat the starchy carbs.
When it's time to dig deeper
Standard blood sugar tests can look normal for years while insulin is quietly climbing. Testing like fasting insulin, fasting glucose, HbA1c, and a lipid panel (especially triglycerides and HDL) can give a much clearer picture of what's going on, so you can catch it early and work on the real cause.
FAQs
What are the first signs of insulin resistance?
Common early signs include belly weight, sugar cravings, energy crashes after meals, getting hungry soon after eating, trouble losing weight, skin tags, and dark skin patches on the neck or armpits.
Can you have insulin resistance and normal blood sugar?
Yes. In the early stages, your body makes extra insulin to keep blood sugar normal, so fasting glucose and HbA1c can look fine for years.
What test shows insulin resistance?
Fasting insulin, fasting glucose, HbA1c, and a lipid panel can help. HOMA-IR, which uses fasting insulin and glucose together, is another helpful way to spot it early.
Can thin people have insulin resistance?
Yes. Insulin resistance can happen at a normal weight, especially with belly fat, inactivity, poor sleep, or a family history of diabetes.
Is insulin resistance the same as prediabetes?
No. Insulin resistance usually comes first. Prediabetes is when blood sugar has started to rise above normal. Catching insulin resistance early gives you more time to turn it around.
When should I see a doctor?
See a doctor if you have extreme thirst, frequent urination, blurry vision, slow-healing cuts, numbness or tingling in your feet, or unexplained weight loss. These can be signs of high blood sugar that need to be checked.
Ready to find out what's really going on?
You don't have to keep fighting cravings, crashes, and belly weight on your own. I work with people online, anywhere in the country, to find the root cause through deeper testing and a personal plan built around their results.
Executive Functional Healing LLC provides health education and wellness coaching. Justin Kempf is a Certified Health Coach, not a licensed physician or medical provider. "Functional medicine practitioner" describes his coaching approach and is not a medical title or license. Services are educational in nature and are not intended to diagnose, treat, cure, or prevent disease, and any discussion of supplements is educational. Medical concerns, diagnoses, medications, and treatment decisions should be discussed with a qualified healthcare professional.
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