Insulin Resistance Symptoms in Women: What to Eat Next

Insulin resistance usually has no symptoms. Most women find out from a blood test, not from anything they feel. The signs you can see, when there are any, are darker, velvety skin on the back of the neck or underarms, skin tags, and a waist of 35 inches or more. If you have those signs or a risk factor like PCOS, get tested. If the test comes back high, food is where I would start: protein and fiber at every meal, smarter carbohydrate portions and a steady meal rhythm.

Many of the lists of "warning signs" online include almost everything: fatigue, cravings, brain fog, hair loss, mood swings. Those can happen, but they have dozens of causes, and chasing them can leave you anxious without an answer. I would rather help you look at the signs that mean something and the tests that settle the question.

A quick note on the name: in 2026, an international group of experts renamed PCOS to polyendocrine metabolic ovarian syndrome, or PMOS. I use PCOS here because it is still the name most people search for, but everything in this article applies to PMOS.

Key takeaways

• Insulin resistance and prediabetes usually cause no symptoms, so testing matters more than guessing.
• Visible clues include dark, velvety skin patches, skin tags and a waist of 35 inches or more.
• PCOS, a history of gestational diabetes, family history and age all raise your risk.
• An A1C or fasting glucose test can show prediabetes. Ask your doctor which test is right for you.
• Protein, fiber, regular meals and more movement are the first tools, and they work.

What is insulin resistance?

Insulin is the hormone that moves sugar from your blood into your cells for energy. With insulin resistance, your cells stop responding to it as well as they should. Your pancreas makes more insulin to compensate, and for a while that keeps your blood sugar in a normal range.

Over time, the pancreas can fall behind. Blood sugar starts to rise, first into the prediabetes range and, for some people, into type 2 diabetes. That slow drift is why insulin resistance is easy to miss and worth catching early.

It is also very common. The NIH estimates that about 97.6 million American adults had prediabetes in 2021, and the CDC puts it at more than 2 in 5 adults.

Does insulin resistance have symptoms?

Usually not. The NIH says plainly that people with insulin resistance and prediabetes usually have no symptoms. Cleveland Clinic notes that many people go years without any. As long as your pancreas keeps up, your body hides the problem well.

That is the main reason I do not want you diagnosing yourself from a symptom list. Feeling tired after lunch does not mean you have insulin resistance, and feeling fine does not mean you do not.

What signs of insulin resistance can women actually see?

A few signs are worth noticing, because they point to higher insulin levels:

• Darker, velvety skin. Patches on the back or sides of the neck, in the armpits or in skin folds are called acanthosis nigricans. They are one of the clearer outward signs.
• Skin tags. Small, soft growths, often on the neck, underarms or eyelids, can show up with prediabetes.
• A larger waist. A waist of 35 inches or more is one of the markers doctors use for metabolic syndrome, which is also called insulin resistance syndrome. Extra fat around your belly is a risk factor in its own right, whatever the scale says.
• Irregular periods with PCOS. PCOS is closely tied to insulin resistance and is listed as a risk factor by both the NIH and the CDC. If you have PCOS, it is worth asking about testing even if you feel well.

To measure your waist, wrap a tape measure around your middle just above your hip bones, standing up, after you breathe out.

What about lab results?

Some of the most useful clues are already in your chart. These are the numbers doctors use:

• A1C: 5.7 to 6.4 percent is the prediabetes range.
• Fasting glucose: 100 to 125 mg/dL is the prediabetes range.
• Oral glucose tolerance test: 140 to 199 mg/dL after two hours is the prediabetes range.
• Triglycerides: above 150 mg/dL is one marker of metabolic syndrome.
• HDL cholesterol: below 50 mg/dL for women is another.
• Blood pressure: 130/85 or higher is another.

Having three or more of the metabolic syndrome markers (waist, triglycerides, HDL, blood pressure and blood sugar) points to metabolic syndrome. There is no single routine test for insulin resistance itself, so your doctor reads these together.

Who is more likely to have insulin resistance?

The CDC and NIH list these risk factors for prediabetes:

• Having overweight or a large waist
• Being 35 or older, with risk climbing after 45
• A parent, brother or sister with type 2 diabetes
• PCOS
• A history of gestational diabetes, or having had a baby who weighed more than 9 pounds
• Being physically active fewer than 3 times a week
• Being African American, Hispanic or Latino, American Indian, Alaska Native, Pacific Islander or of some Asian American backgrounds

Several of these are specific to women. If you had gestational diabetes or have PCOS, make sure your doctor knows, since both raise your risk even if you feel fine.

What should I eat if I think I have insulin resistance?

Get tested first so you know where you stand. Whatever the result, these habits help, and they are the same ones I use with clients every week.

1. Pair carbohydrates with protein and fiber. Eat the carbohydrate with the meal, not alone. Toast with eggs, fruit with Greek yogurt and rice with chicken and vegetables all slow how quickly sugar reaches your blood.
2. Build a balanced plate. Fill about half with vegetables, a quarter with protein and a quarter with a whole-food carbohydrate like beans, lentils, brown rice, quinoa or potatoes with the skin on.
3. Make fiber a daily habit. Beans, lentils, oats, berries, vegetables and nuts all count. My guide to high-fiber foods for PCOS has an easy plan for building up slowly.
4. Eat at regular times. Long gaps often end in a large, fast meal. Three meals and a planned snack keep things steadier.
5. Rethink your drinks. Soda, sweet tea, juice and sweetened coffee drinks deliver sugar fast with nothing to slow it down. Water, sparkling water and unsweetened tea or coffee are easy swaps.

You do not have to give up carbohydrates. In my experience, the women who do best keep foods they enjoy and change the portions and pairings. I walk through this in more detail in the PCOS diet for insulin resistance.

Does exercise help insulin resistance?

Yes. Working muscles pull sugar out of your blood, and regular activity helps your cells respond to insulin better. The CDC recommends at least 150 minutes a week of brisk walking or similar activity, about 30 minutes, 5 days a week. The federal Physical Activity Guidelines also recommend muscle-strengthening activity at least 2 days a week, and I push this one hard, since muscle is where much of your blood sugar goes.

How much difference do these changes make?

A lot. In the Diabetes Prevention Program, a large NIH study, people with prediabetes who lost 5 to 7 percent of their starting weight through food changes and more activity lowered their chance of developing type 2 diabetes. The CDC reports that this kind of lifestyle program can lower type 2 diabetes risk by 58 percent, and by 71 percent for people over 60. For a 200-pound woman, 5 to 7 percent is about 10 to 14 pounds.

And the benefit lasted. Follow-up from the same study found the protection held for at least 15 years.

Putting it together

If you recognize the signs, or you have PCOS, a family history or a history of gestational diabetes, ask your doctor for an A1C or fasting glucose test at your next visit. Bring your waist measurement too. Then start with one change, such as adding a protein to breakfast or a vegetable to lunch, and build from there.

If your results came back in the prediabetes range and you want a plan that fits your life, I would love to help. Book a free intro call and we can talk through your labs and where to start.

Sources

• National Institute of Diabetes and Digestive and Kidney Diseases (NIH). Insulin Resistance & Prediabetes.
• Centers for Disease Control and Prevention. Prediabetes: Your Chance to Prevent Type 2 Diabetes.
• Cleveland Clinic. Insulin Resistance.
• National Heart, Lung, and Blood Institute (NIH). Metabolic Syndrome: Diagnosis.
• U.S. Department of Health and Human Services. Physical Activity Guidelines for Americans.