The 6 Most Common Signs of Insulin Resistance in Women (And What You Can Do About It)

Have you ever felt like you’re doing everything “right”—eating well, exercising regularly, getting enough sleep—yet you’re still struggling with low energy, intense cravings, stubborn weight changes, or irregular periods?

If so, insulin resistance could be part of the picture.

Insulin resistance is one of the most common metabolic concerns affecting women today. It’s closely linked to conditions like PCOS/PMOS, prediabetes, metabolic syndrome, and type 2 diabetes, but it often develops before any diagnosis is made.¹

The challenge? Many of the symptoms are subtle and easy to dismiss as stress, aging, or simply being busy.

Understanding the early signs of insulin resistance can help you take action sooner and support your long-term health.

What Is Insulin Resistance?

Insulin is a hormone produced by the pancreas that helps move glucose (sugar) from the bloodstream into cells, where it can be used for energy.⁵

When insulin resistance develops, cells become less responsive to insulin’s signal. To compensate, the pancreas produces more insulin to maintain normal blood glucose levels.⁵ Over time, this compensatory increase in insulin production (hyperinsulinemia) may contribute to changes in appetite regulation, energy metabolism, inflammation, cardiovascular risk, and reproductive hormone function.¹˒²˒⁵

Insulin resistance is considered a key feature of polycystic metabolic ovary syndrome (PMOS/PCOS) and can occur across a range of body sizes. Current evidence suggests that many individuals with PMOS/PCOS experience insulin resistance, even in the absence of overweight or obesity.¹˒²

Because insulin resistance can develop gradually and may be present before blood glucose levels become abnormal, assessment often extends beyond standard diabetes screening. Healthcare practitioners may evaluate markers such as hemoglobin A1C (HbA1c), fasting glucose, fasting insulin, and calculated indices such as the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) to gain a more complete picture of metabolic health and insulin function.¹˒² While no single test definitively diagnoses insulin resistance, evaluating multiple markers together can help identify early metabolic changes and guide individualized treatment strategies.¹˒²

1. You’re Constantly Craving Sugar or Carbohydrates

Do you feel like you’re always thinking about your next snack?

Frequent cravings—especially for sweets, baked goods, chips, or refined carbohydrates—may be a sign that your body is struggling to regulate blood sugar efficiently.³

When blood sugar rises and falls rapidly, it can trigger hunger signals that make you reach for quick sources of energy. Elevated insulin levels may further contribute to this cycle by influencing appetite regulation and food cravings.³

What You Can Do

Focus on building balanced meals that include:

• 20-30 g of protein (e.g., eggs, Greek yogurt, chicken, fish, tofu, edamame)
• Fibre-rich carbohydrates (e.g., berries, lentils, oats, quinoa, sweet potatoes)
• Healthy fats (e.g., avocado, nuts, seeds, olive oil)

This combination helps slow digestion, support satiety, and promote more stable blood sugar levels throughout the day.¹

A simple example might be Greek yogurt with berries and walnuts for breakfast, or a grain bowl with chicken, quinoa, roasted vegetables, and olive oil for lunch.

2. You Feel Tired After Eating

Feeling sleepy after a large meal is normal occasionally.

Feeling exhausted after most meals is not.

Many women with insulin resistance experience significant fatigue, brain fog, or energy crashes after eating, particularly after meals high in refined carbohydrates.²

This occurs because the body is working harder to manage glucose and insulin fluctuations. Over time, these swings can leave you feeling drained rather than energized.²

What You Can Do

Similarly to the food cravings mentioned above, strategies can include trying:

• Starting your day with a protein-rich breakfast such as eggs with vegetables or Greek yogurt with nuts and seeds
• Limiting meals that rely heavily on refined carbohydrates alone, such as pastries, sugary cereals, or white toast
• Going for a 10-15 minute walk after meals

Even brief walks after eating have been shown to improve post-meal glucose control and support insulin sensitivity.⁴

3. You’re Gaining Weight Around Your Midsection

While weight gain can occur for many reasons, increased abdominal fat is commonly associated with insulin resistance.⁵

Excess insulin promotes energy storage and can make it more difficult for the body to access stored fat for fuel. Elevated insulin levels are also associated with increased visceral fat, the type of fat stored around internal organs that contributes to metabolic risk.⁵

Importantly, insulin resistance can occur in women of all body sizes. Not everyone with insulin resistance lives in a larger body, and body weight alone is not a reliable indicator of metabolic health.¹

What You Can Do

Instead of focusing solely on weight loss, prioritize:

• Strength training
• Blood sugar balance
• Sleep quality
• Stress management
• Consistent movement

Research shows improvements in insulin sensitivity can occur even without significant changes in body weight.¹

4. You Struggle With Brain Fog or Difficulty Concentrating

If you often feel mentally sluggish, forgetful, or unable to focus, blood sugar fluctuations may be contributing.

The brain relies heavily on glucose for energy. When glucose regulation becomes less stable, cognitive symptoms such as difficulty concentrating, fatigue, and reduced mental clarity may become more noticeable.⁶

What You Can Do

Support steady energy by:

• Eating balanced meals regularly
• Staying hydrated
• Managing stress
• Prioritizing sleep

Small lifestyle changes can have a significant impact on both metabolic health and cognitive function.

5. You Have Irregular Periods

Insulin doesn’t only affect blood sugar—it also influences reproductive hormones.

Elevated insulin levels can stimulate ovarian androgen production, contributing to hormonal imbalances that affect ovulation and menstrual cycle regularity.¹

For many women, irregular periods may be one of the earliest signs that metabolic and hormonal health are interconnected.

What You Can Do

If you’re experiencing:

• Irregular cycles
• Missed periods
• Difficulty conceiving
• New symptoms of acne or excess hair growth

it’s important to speak with a healthcare provider for a comprehensive assessment.

6. You’re Developing Skin Tags or Darkened Skin Patches

Certain skin changes are strongly associated with insulin resistance.

Acanthosis nigricans—a condition characterized by darker, velvety patches of skin commonly found around the neck, underarms, or groin—is often linked to elevated insulin levels.²

Skin tags may also occur more frequently in individuals with insulin resistance.⁷

What You Can Do

These symptoms warrant a conversation with your healthcare provider, particularly if they occur alongside other signs of blood sugar dysregulation.

Early intervention can help prevent progression toward prediabetes or type 2 diabetes.²

How to Improve Insulin Sensitivity Naturally

The good news is that insulin resistance is highly responsive to lifestyle interventions.¹

Current evidence supports several key strategies:

Prioritize Resistance Training

Strength training is one of the most effective tools for improving insulin sensitivity because muscle tissue acts as a major site for glucose uptake.⁸

Move More Throughout the Day

Regular movement—including walking—helps muscles use glucose more efficiently and improves metabolic health.⁴

Focus on Fibre

Fibre slows glucose absorption and supports healthy blood sugar regulation.¹

Aim to include:

• Vegetables
• Fruit
• Legumes
• Whole grains
• Nuts and seeds

Support Sleep

Poor sleep is associated with reduced insulin sensitivity and impaired glucose metabolism.⁹

Aim for 7-9 hours of quality sleep each night.

Manage Stress

Chronic stress can contribute to elevated cortisol levels, which may negatively affect insulin sensitivity and metabolic health.¹

Practices such as mindfulness, yoga, breathwork, and time outdoors can help support stress resilience.

The Bottom Line

Insulin resistance doesn’t happen overnight, and neither does improving it.

The first step is recognizing the signs.

If you’ve been experiencing persistent cravings, fatigue, brain fog, irregular periods, increased abdominal weight gain, skin changes, or constant hunger, it may be worth exploring your metabolic health with a qualified healthcare provider.

Remember: insulin resistance is not a personal failure. It’s a complex physiological process influenced by genetics, hormones, lifestyle factors, and overall health.

The goal isn’t perfection. It’s creating sustainable habits that support your body, your hormones, and your long-term wellbeing.

References

1. Teede HJ, Tay CT, Laven JJE, et al. Recommendations From the 2023 International Evidence-Based Guideline for the Assessment and Management of Polycystic Ovary Syndrome. J Clin Endocrinol Metab. 2023;108(10):2447-2469.
2. Sung N, Amir J, Alwahab UA, Falcone T. Polycystic ovary syndrome: An update on diagnosis and management. Cleve Clin J Med. 2026;93(3):176-183.
3. Ludwig DS. The glycemic index: physiological mechanisms relating to obesity, diabetes, and cardiovascular disease. JAMA. 2002;287(18):2414-2423.
4. DiPietro L, Gribok A, Stevens MS, Hamm LF, Rumpler W. Three 15-minute bouts of moderate postmeal walking significantly improve 24-hour glycemic control in older people at risk for impaired glucose tolerance. Diabetes Care. 2013;36(10):3262-3268.
5. Kahn SE, Hull RL, Utzschneider KM. Mechanisms linking obesity to insulin resistance and type 2 diabetes. Nature. 2006;444(7121):840-846.
6. Arnold SE, Arvanitakis Z, Macauley-Rambach SL, et al. Brain insulin resistance in type 2 diabetes and Alzheimer disease: concepts and conundrums. Nat Rev Neurol. 2018;14(3):168-181.
7. Sinha S, Schwartz RA. Juvenile acanthosis nigricans. J Am Acad Dermatol. 2007;57(3):502-508.
8. Bird SR, Hawley JA. Update on the effects of physical activity on insulin sensitivity in humans. BMJ Open Sport Exerc Med. 2017;2:e000143.
9. Reutrakul S, Van Cauter E. Sleep influences on obesity, insulin resistance, and risk of type 2 diabetes. Metabolism. 2018;84:56-66.