The One Thing Missing From Your Fast That's Keeping the Weight On

Extended Fasting Raises Cortisol

Going too long without nourishment signals stress to your body, raising cortisol. In women over 40, elevated cortisol promotes belly fat storage. Bone broth during your fasting window provides nourishment that calms this stress response — without breaking your fast.

Fasting Without Protein Slows Your Metabolism

When your body doesn't get enough protein during a fast, it downregulates your metabolic rate to conserve energy — a process called adaptive thermogenesis. Adding 16g of protein from bone broth keeps your metabolism active and fat-burning throughout your fasting window.

Without Protein, You Lose Muscle — Not Fat

Without adequate protein, fasting causes your body to break down muscle tissue for energy. Less muscle means a slower metabolism — creating a cycle that's very hard to break after 40.

“I'd been doing 16:8 for months and barely lost anything. My friend suggested I add bone broth to my fasting window instead of just black coffee. I was skeptical but within two weeks the bloat was gone and the scale was finally moving. It was the missing piece I didn't know I needed.”

“I was so tired of white-knuckling through my fasting window. The hunger was making me miserable. Dr. Kellyann's bone broth completely changed that — it keeps me satisfied for hours and the cravings just stopped. I'm still fasting but now it actually feels sustainable.”

“I was fasting religiously but my results had completely stalled. A friend recommended adding bone broth and within a week I could feel the difference — less bloating, more energy, and the scale started moving again. My fast is finally working the way I always hoped it would.”

500K+

Women helped

50M+

Cups sold

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5-star reviews

21 days

Average first results

Add Bone Broth to Your Fasting Window

During your fasting window, swap plain black coffee or water for one warm cup of Dr. Kellyann's Bone Broth. It takes 2 minutes and gives your body the protein it needs to protect muscle and burn fat — without breaking your fast.

Drink Daily for 21 Days

Each cup delivers 16g of protein and collagen peptides that protect lean muscle, quiet hunger, and keep your metabolism active throughout your fasting window. Consistency is what creates results.

Watch Your Fast Start Working

Less bloating in week one. Quieter hunger in week two. Visible weight loss by day 21 — because your body finally has what it needs to make fasting work the way it was meant to.

Dr. Kellyann's 21-Day Bone Broth Bundle

6 boxes. 42 protein-packed servings. 6 delicious flavors. Everything you need to supercharge your fasting results for 21 days — formulated specifically to protect muscle, quiet hunger, and keep your metabolism burning during every fasting window.

Meet Your Guide

Dr. Kellyann Petrucci, MS, ND

I'm a board-certified naturopathic physician, certified hormone health coach, and New York Times bestselling author. I've spent my career studying why women over 40 struggle with weight — and what actually works.

You may have seen me on Good Morning America, Good Day LA, or The Doctors. I've helped hundreds of thousands of women break free from the restrict-regain cycle and finally achieve sustainable, lasting results.

The truth I share with every patient: fasting works — but only when your body has the protein and collagen it needs to protect muscle and burn fat. This 21-Day Bundle is the exact protocol I use in my practice to make fasting more effective. I'm confident it will work for you too.

GMP Certified & Made in the USA

Every batch is manufactured in a Good Manufacturing Practice certified facility right here in the USA. Nearly 50 million cups sold — and counting. Quality you can trust, from a doctor you can trust.