Ads skipped

How Intermittent Fasting Affects Women: Metabolism, Perimenopause & Hormones | Dr. Stacy Sims

496K views · Apr 28, 2025 · Science & Technology

Comments · 676

  • @PinkieJoJo · 11 months ago

    She said for active women. So many in the comments missed that point.  I work a desk job. I absolutely feel terrible if I eat breakfast. I am hungry all day and low energy whereas if I fast to noon, I am so energetic and much less hungry.   So people need to really figure out what works for them individually.

    886

  • @sylviavanbeers4661 · 1 year ago

    I did 10 years intermitted fasting, &nbsp;i had bellyfat what i couldn&apos;t loose. Then i listen to your videos, changed my eating, &nbsp;eat protein, &nbsp;eat in the morning, and less reps with weights.<br><br>After 1 month my belly fat is bizar decreased and lost 2,5 kilo.<br><br>Amazing improvement and i because of the protein. i am &nbsp;also not hungry anymore <br><br>Thank you dr. Stacey sims😊😊

    195

  • @wendybernards2756 · 1 day ago

    I was diagnosed pre diabetic at 49 last year. In perimenopause. Weighed more than I had ever in my life. Weight kept going up no matter what. I’m an active person. Intermittent fasting combined with high protein low carb was a complete game changer for me. Didn’t start eating until 11-1. Worked out fasted. Weight started melting suddenly and now I’m in maintenance and muscle building. Lost between 17-20 lbs depending on the day. I guess every body is different.

  • @amaramurra3282 · 11 months ago (edited)

    I feel WAY WAY WAY SIGNIFICANTLY BETTER WHEN FASTING!! it’s the only thing that’s ever helped me control my hunger and cravings and made me feel so much more energized. I am a very active woman

    104

  • @crystalassam433 · 1 year ago (edited)

    There is so much information on the Internet 🤦‍♀️Dr Mindy says to fast 12 - 16 or even longer it&apos;s hard to know what advice to follow

    165

  • @emilyschauers · 1 year ago (edited)

    “tired, but wired,” yes! that is me intermittent fasting; today I decided to eat my protein breakfast at 8am

    65

  • @denisekrueger8745 · 11 months ago

    Tried intermittent fasting for 2 years and struggled with belly fat and fatigue. Began eating according with circadian rhythm and &nbsp;finally seeing my body slowly begin to release fat. Am lifting heavy 3 days a week and walk outside daily. Feeling great!

    153

  • @Opera447 · 1 year ago

    I was fasting 18 hours sometimes 24 and working out fasted breaking at noon my hair fell out and exhaustion ive changed it to eating protein and fats mornjng then going to gym and skipping dinner huge diff

    29

  • @Manifesting_Generator · 1 year ago

    I started eating protein within 30 minutes of waking up and pre training ( min 30 mins run) My av HRV has increased from around 40 to av 60 in JUST 2 weeks! Totally controls morning cortisol induced stress in women. I’m 63. <br>Thankyou Dr Stacy Simms. 🙏

    90

  • @monicavandeventer5429 · 6 months ago

    As an active woman who struggles with PTSD, fasting has been LIFE SAVING for me. There’s no need for breakfast most days unless I wake up very hungry.

    6

  • @stephanieschieren8181 · 1 year ago (edited)

    I&apos;ve been following some of your advice for the past couple of months now and have personally noticed a huge difference eating nutrient rich foods first thing in the morning before going about my day. I&apos;m a 29 y/o woman and for a long time, my regular weekday consisted of getting up and going to work, only having water/iced coffee, and not eating until 12/1pm. During this time, I felt very mentally foggy, anxious, and had a lot of cravings throughout the morning until lunch time. When I heard you talk about how women have a higher cortisol peak in the morning compared to men and should eat within an hour of waking up to dampen the spike, I decided to try it out for myself. Before leaving the house, I&apos;ve been eating a bowl of Greek Yogurt with chia seeds and some berries, and the difference I&apos;ve been feeling is crazy. My head feels so much clearer, I don&apos;t feel as sensitized to daily stressors as I did before, and my appetite feels way more under control. It feels like my Nervous System has been calmed down a lot, which is pretty cool to experience. I&apos;m also making sure to eat nutrient rich/whole foods during lunch and dinner while also trying to fuel properly before and after workouts, which has also been helping me feel more leveled. Thank you Dr. Sims for all of your helpful information and keep up the good work! 😊

    426

  • @ayze82 · 7 months ago

    Oh my goodness, this makes so much sense! I used to run on an empty stomach all the time when I was younger. However, this changed when I turned 40. I simply can’t work out without having breakfast in the morning, and I get really tired quickly.

    3

Up next

LIVE

The Science of Meal Timing in Women | Hormones, Metabolism & Performance

Dr. Stacy Sims Official · 117K views

LIVE

Dr. Stacy Sims Explains What to Eat Before & After Training: Pre/Post Workout Meals for Women & Men

Dr. Stacy Sims Official · 304K views

LIVE

The No.1 Menopause Doctor: They’re Lying To You About Menopause! Mary Claire Haver

The Diary Of A CEO · 6.8M views

LIVE

The 5 Things Every Woman Should Do During Perimenopause | Dr. Stacy Sims

Dr. Stacy Sims Official · 124K views

LIVE

The Body Reset: How Women Should Eat & Exercise for Health, Fat Loss, & Energy | Dr. Stacy Sims

Mel Robbins and Dr. Stacy Sims Official · 3.2M views

LIVE

Does Fasting Work for Women? The Weight & Hormone Science Every Woman Must Know | Dr. Stacy Sims

Dr. Stacy Sims Official · 91K views

LIVE

Intermittent Fasting for Women | Jason Fung ft. Megan Ramos

Jason Fung · 380K views

LIVE

How & Why Women Should Strength Train & Do Less “Cardio” | Dr. Stacy Sims & Dr. Andrew Huberman

Huberman Lab Clips · 238K views

LIVE

3 Keys to Sustainable Weight Loss: Strength, Protein, and Smart Habits

Dr. Stacy Sims Official · 358K views

LIVE

Lift Heavy, Protect Your Brain: Strength, Creatine, and Sauna for Women with Dr. Stacy Sims

Dr. Mary Claire Haver, MD and Dr. Stacy Sims Official · 46K views

LIVE

What most people get wrong about fasting | Prof. Tim Spector & Gin Stephens

ZOE · 645K views

LIVE

Postmenopausal Fitness & Nutrition Hacks: What You Need to Know After 50 | Dr Stacy Sims | The Proof

The Proof with Simon Hill · 753K views

LIVE

The Exact Workout Week for Women at 42 and 62: Strength, Power and What Actually Changes with Age

Dr. Vonda Wright, MD and Dr. Stacy Sims Official · 73K views

LIVE

Intermittent Fasting: Transformational Technique | Cynthia Thurlow | TEDxGreenville

TEDx Talks · 15M views

LIVE

Does Protein Timing Matter for Women? How Fasting Affects Muscle Growth & Metabolism

High Performance Health · 159K views

LIVE

Women's Health Doctor: The Health Industry Is Failing Women (Here’s Why)

Rich Roll and 2 more · 96K views

LIVE

Why You’re Gaining Fat in a Calorie Deficit: Hormones & Timing in Women

Dr. Stacy Sims Official · 61K views

LIVE

Why Women Gain Visceral Fat & Lose Muscle During Perimenopause? The Role of HRT & Exercise

Dr. Stacy Sims Official · 237K views

LIVE

Why Isn't the Belly Fat Coming Off? Women's Weight Loss & Cortisol Explained

Dr. Stacy Sims Official and Liz Moody · 119K views

LIVE

Are Women Undereating Carbs? Why Low Carb Backfires for Muscle, Hormones and Energy

Dr. Stacy Sims Official · 48K views

LIVE

Dr. Stacy Sims on Perimenopause & How to Manage Symptoms | Fitness and Nutrition for WOMEN

Live Well Be Well with Sarah Ann Macklin and Dr. Stacy Sims Official · 131K views

LIVE

Why FASTING For Women is Different & How To Do It CORRECTLY For Insane Benefits | Dr. Mindy Pelz

Dhru Purohit · 1.4M views

LIVE

Female-Specific Exercise & Nutrition for Health, Performance & Longevity | Dr. Stacy Sims

Andrew Huberman · 2.4M views

LIVE

Dr. Stacy Sims: Should women take creatine? A physiology-based masterclass for midlife hormones

Dr. Stacy Sims Official · 196K views

LIVE

Dr. Stacy Sims on How to Lose Weight for Women and Men | Dr. Stacy Sims on The Diary Of A CEO

Dr. Stacy Sims Official · 157K views

LIVE

Dr. Stacy Sims EXPOSES the Myths Hurting Women's Health | Fasting, Protein & Exercise

Live Well Be Well with Sarah Ann Macklin and Dr. Stacy Sims Official · 536K views

YouTube, with the door locked.

Aegis plays a clean stream instead of YouTube's player, so pre-roll ads, trackers, and fingerprinting never ride along. Drop Shields any time if you want the official player back.