Expert Q&A

How to figure out your macros for LCHF specifically for women over 40

Why LCHF Works Differently for Women Over 40

As the expert behind CFP Weight Loss, I've helped thousands of women in their 40s and 50s break through plateaus that standard diets couldn't touch. LCHF—Low Carb High Fat—restricts carbs to under 50 grams daily while prioritizing healthy fats and moderate protein. For women over 40, hormonal shifts like declining estrogen and rising insulin resistance make fat storage easier around the midsection. My method accounts for this by personalizing macros to stabilize blood sugar, reduce inflammation, and support thyroid function without extreme calorie cuts.

Most women fail previous diets because they ignore these changes. LCHF flips the script: by keeping carbs very low, you train your body to burn fat for fuel, often called ketosis. Expect 1-2 pounds of fat loss weekly once adapted, especially when combined with my gentle movement protocols that respect joint pain.

Step-by-Step: Calculating Your Personal LCHF Macros

Start with your basal metabolic rate using the Mifflin-St Jeor equation adjusted for age. For a 48-year-old woman weighing 180 pounds at 5'4", basal needs average 1,400 calories. Add 20-30% for light activity to reach 1,700-1,800 maintenance calories. On LCHF, create a 20% deficit: target 1,400-1,500 calories.

Use a tracking app for the first two weeks. In my CFP Weight Loss program, we refine these numbers every 14 days based on energy, sleep, and scale results.

Adjustments for Hormones, Diabetes, and Joint Pain

Perimenopause often raises insulin resistance, so some women need to drop to 20 net carbs and cycle higher fat days. If managing diabetes or blood pressure, pair LCHF with 12-14 hour intermittent fasting windows—never skip breakfast if it spikes your stress. For joint pain, focus on anti-inflammatory fats like omega-3s from salmon (aim for 2-3 servings weekly) rather than high-impact exercise. Walk 20-30 minutes daily and add resistance bands twice weekly to preserve muscle without overwhelming your schedule.

Common mistake: undereating fat early on, leading to fatigue. Increase electrolytes—4,000mg sodium, 300mg magnesium—to ease the adaptation phase that lasts 7-21 days.

Tracking Progress and Long-Term Success on LCHF

Don't weigh daily; track waist circumference, energy, and how clothes fit. After four weeks, most women see improved blood markers: lower triglycerides, stable glucose, and better blood pressure. My book outlines exact meal templates under 30 minutes prep that fit middle-income budgets—no exotic ingredients required. Remember, consistency beats perfection. Once you master these macros, LCHF becomes sustainable for life, reversing the metabolic damage from years of failed diets.

💬 What the Community Says

Women over 40 on forums like Reddit's r/keto and Facebook LCHF groups report strong initial success with 20-40g carb limits but often struggle adapting macros during perimenopause. Many share stories of losing 15-25 pounds in the first two months after calculating protein at 1.2g per kg, yet a vocal group warns against dropping below 80g protein to avoid hair loss and fatigue. Debates rage over exact ketone levels versus how they feel. Those managing diabetes praise blood sugar stabilization but complain insurance rarely covers testing supplies. Joint pain is frequently mentioned as a barrier to exercise, with most recommending walking over gym routines. Beginners feel overwhelmed by conflicting advice on fat ratios, but experienced users emphasize tweaking every 2-4 weeks and adding electrolytes. Overall sentiment is hopeful yet cautious—many say it finally worked after low-fat diets failed them for decades.
Clark, R. (2026). How to figure out your macros for LCHF specifically for women over 40. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/how-to-figure-out-your-macros-for-lchf-specifically-for-women-over-40
Russell Clark, 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.

Have a follow-up question?
More Questions 200 answered
Upped dosage + changing patch day — evidence-based answer for CFP patients Would doing this 2-3x a week help increase my Vo2 max — how a functional medicine approach differs App that can predict symptoms before they get bad while doing intermittent fasting Is estriol as effective as estradiol for clitoral atrophy and the role of cortisol and stress hormones Cool, happy energy after upping estrogen patch — how a functional medicine approach differs Has anyone tried this lectin free lifestyle living with PCOS while doing intermittent fasting 📖 Visceral Fat — The dangerous 'hidden' fat stored around internal organs that drives chronic disease and is specifically targeted by our… Has Gundry ever explained why he thinks APOE4 carriers love cheese so much while doing intermittent fasting Anyone had improvement in symptoms after already eating a clean plant based diet — how a functional medicine approach differs What tissues show the biggest metabolic remodeling in z2: best practices and common mistakes to avoid 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → When feeling down, remember that PCOS is what helped our ancestors survive and the role of cortisol and stress hormones Can deep extended autophagy reverse deep cavities, does anyone have any experience regarding this and its effect on metabolism and insulin levels 📖 One Box Protocol — A revolutionary approach where we stretch one 60 mg box of tirzepatide across three metabolic phases, prioritizing long-… Is tomato paste lectin free — what most people get wrong about this Astounded to see that 19 million people in the US are on levothyroxine. Why is hypothyroidism so prevalent? What is causing such crazy high levels of thyroid disease while doing intermittent fasting When men recognize symptoms — how a functional medicine approach differs Does anyone have ant literature or knowledge on autophagy and loose skin and the role of cortisol and stress hormones Did my hashimoto cause this for people with insulin resistance 📖 Hashimoto’s Success — Achieving weight loss and reduced inflammation in thyroid patients by removing dietary triggers like lectins and modern … Fuck is Almond milk — how a functional medicine approach differs Opened monjuaro pen is it safe to use — how a functional medicine approach differs Eyelid myokymia/twitching caused by oral progesterone — how a functional medicine approach differs 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Did anyone else feel like Trintellix completely blunted their GLP-1 (Mounjaro/Wegovy) effect — what do certified weight loss coaches recommend? Dr Gundry: the 120+80 supplements he himself takes daily while doing intermittent fasting Starting 2.5 mg of the Zepbound Kwikpen tonight. Any tips to get started? Has anyone with multiple sclerosis seen improvement while on PP and its effect on metabolism and insulin levels 📖 Cellular Detox — The process of clearing out metabolic waste and reducing cellular stress to allow for more efficient energy production a… What is this new frozen hell on a low-carb or ketogenic diet What about oxalates — how a functional medicine approach differs Estradiol Cypionate- I’ve been underdosing- what dose are you at — what do certified weight loss coaches recommend? What is your best way to shift focus when starting and changing your HRT while doing intermittent fasting 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → What is the Role of Metabolism in Immune System while doing intermittent fasting What a 55 water fast did for me: what to track and how to measure progress 📖 Adipose Tissue Signaling — The way fat cells communicate with the brain; our goal is to fix these signals so the body stops defending an unnaturall… Does the estradiol gel-associated bloating subside? When men recognize symptoms for those with hypothyroidism or Hashimoto's When the clock starts over while doing intermittent fasting Anyone worried about the FDA crackdown: how to talk to your doctor about this 📖 CICO (Calories In, Calories Out) — An outdated model of weight loss that ignores the role of hormones; we challenge this by focusing on food quality and ho… Zone 2 running is absurdly slow (slower than walking) — am I doing this right while doing intermittent fasting What are everyone’s symptoms with insulin resistance while doing intermittent fasting What a 55 water fast did for me for people with insulin resistance Is this normal? Feels like a waste while doing intermittent fasting 📖 Gut-Brain Axis — The complex communication network between your digestive system and your brain that controls satiety, mood, and metaboli… 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → PCOS + insulin resistance… belly fat won’t budge. what actually worked for you — evidence-based answer for CFP patients Do you avoid socialising or seeing family because of how tired you are and how much effort it is to be in company while doing intermittent fasting Anyone have experience switching from compound injection to pill — how a functional medicine approach differs What actually helped my Hashimoto's symptoms — food changes that made a difference for me and its effect on metabolism and insulin levels 📖 Metabolic Flexibility — The body’s ability to efficiently switch between burning carbohydrates and burning stored body fat based on availability… How many of you with PCOS had a narcissistic parent growing up while doing intermittent fasting Is it even worth it anymore while doing intermittent fasting Anyone stretching out to 3 weeks between shots: best practices and common mistakes to avoid Had my hashi’s annihilated thyroid removed today — how a functional medicine approach differs Can anyone recommend a good, reliable source for Mounjaro injections which costs less than 200 bucks for four injections please — how a functional medicine approach differs 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Cheat / treat days or meals — how a functional medicine approach differs 📖 Caloric Deficit Myth — The false belief that weight loss is purely 'math'; we focus on hormonal signaling rather than just counting calories to… PCOS linked to childhood trauma — how a functional medicine approach differs How often can I eat in season fruits — how a functional medicine approach differs Countries with easy access to grass-fed brains and fat and its effect on metabolism and insulin levels