Expert Q&A

Is this discoloration a sign of insulin resistance for people with insulin resistance

Understanding Skin Discoloration and Insulin Resistance

As the founder of CFP Weight Loss, I've worked with thousands of adults in their late 40s and 50s struggling with insulin resistance. One common question I receive is whether skin discoloration, particularly dark velvety patches around the neck, armpits, or groin, indicates insulin resistance. The answer is yes— this condition is called acanthosis nigricans and serves as a visible marker of elevated insulin levels.

Acanthosis nigricans develops when high insulin stimulates skin cell growth, leading to hyperpigmentation. In my experience with clients managing diabetes and blood pressure alongside weight challenges, roughly 40-60% with moderate to severe insulin resistance show these signs. It's especially prevalent during hormonal shifts in perimenopause and menopause, which exacerbate metabolic slowdown.

Why This Matters for Your Weight Loss Journey

If you've failed every diet before, this discoloration isn't just cosmetic—it's a red flag that your body isn't processing carbohydrates efficiently. Standard calorie-restriction plans fail because they don't address underlying insulin resistance. In my book, I explain how chronic high insulin promotes fat storage, particularly around the midsection, making joint pain worse and exercise feel impossible.

Most of my middle-income clients can't afford fancy programs their insurance won't cover. That's why I focus on sustainable changes: reducing refined carbs to under 100 grams daily, incorporating 20-minute walks despite joint discomfort, and using targeted supplements like berberine (500mg twice daily with meals) shown in studies to improve insulin sensitivity by up to 25%.

Actionable Steps to Reverse the Signs

Start by tracking your fasting insulin levels—aim for under 10 μU/mL. Combine this with my CFP Method: three balanced meals without snacking to stabilize blood sugar. Prioritize protein (25-30g per meal) and fiber-rich vegetables while limiting sugars that spike insulin. Many clients see acanthosis nigricans fade within 3-6 months as their metabolic health improves.

For those embarrassed about their obesity or overwhelmed by conflicting nutrition advice, remember small consistent steps work best. Swap evening carbs for protein and non-starchy veggies. Add resistance bands for joint-friendly strength training twice weekly. These changes not only lighten skin discoloration but also help manage blood pressure and diabetes markers.

Long-Term Metabolic Health Improvements

Reversing insulin resistance requires addressing root causes like sleep disruption and stress, which elevate cortisol and worsen hormonal weight gain. My clients who follow the CFP approach report losing 1-2 pounds weekly without extreme measures. The fading of dark patches becomes a motivating visual sign of progress, rebuilding confidence to ask for help and stay consistent.

Focus on real foods, gentle movement, and patience. Your body can heal when given the right signals consistently.

💬 What the Community Says

In online forums and support groups, many adults aged 45-55 describe discovering dark neck or underarm patches during routine check-ups, often leading to their first insulin resistance diagnosis. Most practitioners report relief upon learning acanthosis nigricans is reversible with lifestyle changes, though a vocal minority feels frustrated that doctors dismissed it as purely cosmetic for years. Lived experiences frequently mention embarrassment about visible signs combined with joint pain preventing exercise, while others celebrate gradual fading after cutting sugars and adding walks. Debates center on whether supplements truly help versus dietary shifts alone, with the community split between those overwhelmed by advice and those finding success through simple meal timing. Insurance limitations surface often, pushing many toward affordable self-guided approaches that emphasize sustainable habits over quick fixes.
Cite this answer
Clark, R. (2026). Is this discoloration a sign of insulin resistance for people with insulin resis. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/is-this-discoloration-a-sign-of-insulin-resistance-for-people-with-insulin-resistance
Russell Clark, FNP-C, APRN, FNP-C, APRN
About the Author

Russell Clark, FNP-C, APRN, is the founder of CFP Weight Loss in Nashville and CFP Fit Now telehealth. Over 35 years in healthcare — Army Nurse Reserves, Level 1 trauma ER, hospitalist — he developed a 30-week protocol integrating real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 30–90 pounds. He and his wife Anne-Marie lost a combined 275 pounds using the same protocol.

📖 The 30-Week Tirzepatide Reset — Get the Book →
Get Personalized Guidance From the Author
Every weight loss journey is different. Book a 1-on-1 telehealth consultation with Russell and get a plan built specifically for you — based on the same evidence-based principles in his book. Available to patients in all 50 states.
Book Your Consultation →
Have a follow-up question?
More Questions 200 answered
▸ What is the connection between Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better and how it connects to gut health and inflammation? ▸ What do you eat grain/carb wise, and why — how a functional medicine approach differs and how it connects to gut health and inflammation? ▸ If a random dance partner app existed .. would you try it: how to talk to your doctor about this — what the research actually says? ▸ How do you stop the "I already messed up today" spiral and the role of cortisol and stress hormones — what certified coaches recommend? ▸ Is it normal to lose weight then gain again when you have PCOS or hormonal imbalances for long-term maintenance (not just short-term)? 📖 Cellular Detox — The process of clearing out metabolic waste and reducing cellular stress to allow for more efficient energy production a… ▸ How to handle calories vs carbs/fat/sugar and how it connects to gut health and inflammation on a low-carb or ketogenic diet? ▸ Sugar free 2020, who's with me — what most people get wrong about this: what to track and how to measure progress? ▸ Were any of you guys fans of Journey? How big were they — what the research actually says? ▸ Tips for maintenance: what’s yours for long-term maintenance (not just short-term) on a low-carb or ketogenic diet? ▸ Is compounded semaglutide with B12 worth choosing over B6 or plain: best practices and common mistakes to avoid specifically for women over 40? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Do yall ever daydream of who you were before your diagnosis when you have PCOS or hormonal imbalances if you're on a GLP-1 like semaglutide or tirzepatide? 📖 High-Dose Dependency — The pharmaceutical trap of staying on maximum medication doses indefinitely, which we avoid through our smart cycling me… ▸ Can you really Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better specifically for women over 40? ▸ Probiotics worked for a month then stopped. Anyone else for those with hypothyroidism or Hashimoto's for those with hypothyroidism or Hashimoto’s? ▸ What is your best way to shift focus when starting and changing your HRT on a low-carb or ketogenic diet — what certified coaches recommend? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say specifically for women over 40? ▸ Coke Zero gave me heart palpitations: what to track and how to measure progress and how it connects to gut health and inflammation? 📖 Strategic Fat Loading — A critical 48-hour phase at the start of the reset where we prime the body with healthy fats to trigger the transition f… ▸ What’s your favorite toothpaste for people with insulin resistance for long-term maintenance (not just short-term)? ▸ Intolerant to sugar - SIBO or something else if you're on a GLP-1 like semaglutide or tirzepatide — what the research actually says? ▸ Low TSH, Low T4, and Low T3 simultaneously on Levothyroxine — anyone experienced this and the role of cortisol and stress hormones — what certified coaches recommend? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Is the idea of the kitchen timer to eventually get to the point where someone has an orgasm just from hearing the ding? Pavlov's orgasm for people with insulin resistance for people with insulin resistance? ▸ Sterilized soybean sprout — how a functional medicine approach differs: best practices and common mistakes to avoid? 📖 Maintenance Phase — The final 28 days of our 70-day cycle where we stabilize the new weight and solidify the metabolic habits that prevent f… ▸ Sugar free pudding with greek yogurt — evidence-based answer for CFP patients for long-term maintenance (not just short-term)? ▸ Should I be worried yet, been sitting for 5 days no movement while doing intermittent fasting: best practices and common mistakes to avoid? ▸ LDN is changing my life, will this last: best practices and common mistakes to avoid: what to track and how to measure progress? ▸ Exercise — when and what kind while fasting, and does it enhance autophagy — how a functional medicine approach differs specifically for women over 40? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients while doing intermittent fasting? 📖 Phase 1: Priming — The first 48 hours of a 70-day cycle focused on high-fat intake to prevent the brain from triggering a starvation respon… ▸ What to do if you have to eat late dinners?? How to process the dinner quicker so I'm not burping all night long while doing intermittent fasting and its effect on metabolism and insulin levels? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Low TSH, Low T4, and Low T3 simultaneously on Levothyroxine — anyone experienced this and the role of cortisol and stress hormones for those with hypothyroidism or Hashimoto’s? ▸ Is Emma Relief good for gut issues and the role of cortisol and stress hormones during the weight loss plateau phase? ▸ LDN is changing my life, will this last: best practices and common mistakes to avoid for people with insulin resistance? ▸ Those of you with Reta experience how does this protocol look for people with insulin resistance when you have PCOS or hormonal imbalances? ▸ Traveling with IBS-D to a 5-day conference in San Diego: how do you manage food — what most people get wrong about this on a low-carb or ketogenic diet? ▸ Does okra water actually help gut issues: what to track and how to measure progress — what certified coaches recommend? 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. ▸ Is it normal to lose 6 kg in one week during the weight loss plateau phase for long-term maintenance (not just short-term)? ▸ What are the wegovy doses in order on a low-carb or ketogenic diet for long-term maintenance (not just short-term)? ▸ Why cant i lose weight and am gaining weight when you have PCOS or hormonal imbalances for those with hypothyroidism or Hashimoto’s? ▸ Good calorie amount? Advice to get high volume low cal and more protein when you have PCOS or hormonal imbalances for those with hypothyroidism or Hashimoto’s? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Traveling with IBS-D to a 5-day conference in San Diego: how do you manage food — what most people get wrong about this during the weight loss plateau phase? 📖 Lectin-Free Living — Eliminating inflammatory plant proteins that damage the gut lining and trigger the autoimmune responses that often stall… ▸ Are people who get no effect just using bad product for people with insulin resistance when you have PCOS or hormonal imbalances? ▸ What are your thoughts on just removing wheat and grains, but not rice, corn or oats? Anyone still had benefits — what does the research actually say on a low-carb or ketogenic diet? ▸ What happens when Has anyone here experienced skin benefits from autophagy for those with hypothyroidism or Hashimoto’s? ▸ I am on my second week of mounjaro (2.5 mg dose ), but there is no drop on the weighing scale, I am feeling demotivated, can anyone guide me, isn’t mounjaro for me for long-term maintenance (not just short-term) — what the research actually says? 📖 Hidden Hunger — A state where the body is overfed but undernourished, leading to constant cravings because the brain isn't receiving the… ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say and its effect on metabolism and insulin levels? ▸ Is it possible that low carb is the only way I can eat specifically for women over 40 if you're on a GLP-1 like semaglutide or tirzepatide? ▸ My weight loss progress so far as a 23 year male who stared eating less unhealthy and does little to moderate exercise. Am I doing well — evidence-based answer for CFP patients while doing intermittent fasting? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ When you want something sweet but still try to keep things somewhat low-carb and how it connects to gut health and inflammation if you're on a GLP-1 like semaglutide or tirzepatide? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients specifically for women over 40? ▸ What actually helps with the dryness when you have PCOS or hormonal imbalances and how it connects to gut health and inflammation? ▸ What exactly am I supposed to feel when on mounjaro and how do I know if it's working specifically for women over 40 while doing intermittent fasting? 📖 Gut Microbiome Repair — The restoration of healthy intestinal bacteria through the removal of lectins and grains, essential for long-term weight… ▸ I have an iodine deficiency. Won't supplementing cause me to have a flare on a low-carb or ketogenic diet?