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Mike is a bestselling fitness author with over 2 million books sold. He's the founder of the leading natural sports supplements brand, Legion. His simple and science-based approach to getting fit, strong, and healthy has helped hundreds of thousands of people transform their bodies and lives. If you've been struggling with strength or weight loss plateaus, this book was made for you.



✅ A clear, step-by-step system that shows you exactly how to lose up to 35 pounds of fat and a build lean, toned body
✅ No more conflicting advice. You'll understand why it works, not just what to do
✅ Eat foods you actually enjoy. No bland bodybuilder meals.
✅ A complete 12-month workout program showing you exactly what to do in the gym, week by week
✅ The truth about supplements. What works, what's a waste of money
✅ Instant access to 3 exclusive bonuses the moment you claim your copy
This system is backed by hundreds of peer-reviewed studies and trusted by over 300,000 readers of all ages and fitness levels.
Whether you’re:

Brand New to
Lifting

Returning After Years
Away

Frustrated by Slow Progress & Plateaus

That keep women stuck in the diet-and-cardio loop, including "carbs make you fat" and "lifting heavy makes you bulky," so you can stop following bad advice, avoid costly mistakes, and finally make consistent, measurable progress week after week.
With efficient, simple workouts, not marathon sessions or punishing bootcamps, so you train smart, skip the endless gym hours, and see real changes in the mirror.
Using a flexible, evidence-based nutrition system that lets you enjoy the foods you love, with no "good" versus "bad" food lists and no tiny poverty portions.
With brutally honest guidance that breaks down what actually works, what's pure hype, and what's completely useless, so you only invest in the few products that deliver real, noticeable benefits.
A complete strength training blueprint for sculpted glutes, legs, arms, back, and abs, using simple equipment at home or in the gym, so you always know exactly what to do next.
With practical journaling tips so you can see exactly what's working, stay motivated, and keep your results coming instead of watching them disappear after a few good weeks.


Created By the Best Selling Author by Michael Matthews

Women who train consistently and eat "pretty well" but still feel stuck, soft, or frustrated with slow progress

Women who feel like they're doing everything "right" yet aren't losing the fat or building the tone they want

Busy moms and professionals who want real results without living in the gym or giving up the foods they enjoy

Women who want to understand why their body responds the way it does, especially through their 30s, 40s, 50s and beyond, so they can stop guessing and start progressing

Anyone ready to train smarter, eat flexibly, and follow a proven system instead of jumping from program to program

Bust the 10 biggest fitness myths
Build core strength and a toned physique
Eat in a way that supports fat loss, tone, energy, and hormones
Stop wasting money on supplements
Follow a step-by-step 12-month plan
Track your workouts, progress, and habits
GIFT 1: Protein Swap Cheat Sheet
GIFT 2: Travel & Vacation Survival Guide
GIFT 3: The Ultimate Fat Loss Tracking Guide

A complete list of protein sources from lean to fatty options - so you always know exactly what to eat to hit your macros without getting stuck eating the same chicken breast every single day. Whether you're cutting, bulking, or maintaining, this cheat sheet shows you how to swap proteins based on your calorie targets and preferences.

Travel & Vacation Survival Guide

Proven strategies for staying on track with your nutrition and training even when you're away from home - so one vacation or work trip doesn't undo months of hard work. This guide shows you how to make smart choices at restaurants, adjust your training on the road, and get right back on track when you return, without stress or guilt.

The Ultimate Fat Loss Tracking Guide

Learn how to track the metrics that actually matter like average weight, clothing fit, progress photos, and strength gains. This guide shows you exactly what to track, when to track it, and how to know if you're on the right path, even when the scale isn't moving the way you expect.


"Matthews offers a ton of value that, if properly applied, will transform your body and life."
—Jeff Nippard, professional natural bodybuilder and top fitness YouTuber
"Required reading for all gals who want to get, and stay, in the best shape of their lives."
—Sal Di Stefano, co-host of top-ranked fitness podcast Mind Pump
"Matthews provides the clarity and practical strategies you need to get results."
—James Clear, New York Times bestselling author of Atomic Habits
"This book is THE master plan for any woman's fitness goal."
—Melissa, verified reader
"I never thought I would be lifting weights for the first time at the ripe old age of 67. I am becoming stronger than I have ever been."
—Verified reader, age 67
"Never too old, never too broken."
—Scarlett, verified reader, age 71
"A great book with the blueprint to fitness success for any woman with any level of fitness."
—Raven, verified reader
I don't know anybody who can find time to exercise. I've never had anyone tell me, "Mike, I have too much free time these days. I think I'll spend a few hours in the gym every day to get in shape. What should I do while I'm there?"
It's always the opposite. Most of us lead busy, hectic lives and feel we don't have time for anything new. But in almost all cases, that just isn't true.
As much as some people would like to think they're too busy to exercise, when they analyze in detail how they actually spend their every waking minute every day, they discover how it could be worked out (no pun intended). And especially when they realize how little time it really takes to get fit.
The reality is people who have successfully transformed their bodies have the same 24 hours in a day as you and the rest of us, and they still have lives to live.
The only difference is they've decided exercise is important enough to be in the plan. For some, that means watching less TV. For others, it means waking up an hour earlier a few days per week. For others still, it means asking your partner to take the kids after dinner (a favor you can repay with their workouts).
My point is: if you really want to carve out an hour a few days per week to train, I'm positive you can.
Absolutely.
With Thinner Leaner Stronger, you can lose 15, 25, heck, even 50 pounds of fat in just your first year while also gaining muscle definition in all the right places and greatly increasing your whole-body strength.
Moreover, you're also going to experience firsthand things most people will never know about effective diet and training, including how to perform key exercises with perfect form, ensure you keep progressing in your workouts, break through fat loss and muscle toning plateaus, prevent injuries, and much more.
By the end of your first year of Thinner Leaner Stronger, you're not only going to be thrilled with the results, but even more so with what you're going to be able to accomplish in the following year, two, three, and beyond.
I'm in my 30s, 40s, 50s and beyond. Can I do this program?
Definitely.
Every week I get emailed by at least a few people asking if it's too late to build muscle and get fit. Most are very pleasantly surprised when I explain that it's definitely not too late, and that I'm regularly working with women in their 40s, 50s, and even 60s who are building their best bodies ever.
You might be surprised to learn that not nearly as much changes as people think. One of the first things I refer people to is a study conducted by scientists at the University of Oklahoma, which had 24 college-aged (18 to 22) and 25 middle-aged (35 to 50) participants follow the same weightlifting routine for eight weeks. Researchers analyzed everyone's body composition and found that the middle-aged group had gained just as much muscle as their college-aged counterparts. Strength gains were very similar as well.
Middle age isn't a physiological strikeout, even compared to your 20s. And despite what you've probably heard, your metabolism doesn't crater and your hormones don't implode as you get older. Research shows the average adult's metabolism slows by just 1 to 3 percent per decade, and the primary reason is muscle loss, not genetic programming. So if you maintain your muscle as you age, you maintain your metabolism. And if you add muscle to your frame, you can increase it.
The truth is you can stay in remarkably good shape well into old age if you stay active and take care of your body.
No.
At first glance it sounds plausible. Heavy weights are for the boys who want bulging biceps, right? Here's what you don't see, however: it's very hard for women to build a big, bulky body. It doesn't happen by accident or overnight. It takes elite muscle-building genetics and years of concerted effort in the gym and kitchen.
What really gives women a "bulky" look is something else: too much body fat. Take an athletic woman with toned legs, a curvy butt, tight arms, and a flat stomach. Now add 15 pounds of fat to her frame, and you might be surprised how "blocky" she looks, because fat accumulates inside and on top of muscle.
Reduce your body fat, however, and everything changes. The muscle you've built is able to shine. Instead of looking large and fluffy, you look lean and toned. So here's the rule of thumb for women who want to be lean, toned, and defined: the more muscle you have, the less body fat you need to avoid looking bulky. This is why most women I've worked with are happiest when they've gained 10 to 15 pounds of muscle and dropped their body fat to about 20 percent.
Yes, and as always, check with your doctor first.
In fact, research shows that women who stay active and follow a healthy diet during pregnancy are at a lower risk of excessive gestational weight gain and conditions such as gestational diabetes, preeclampsia, preterm birth, varicose veins, and deep vein thrombosis.
How long does it take to see results?
One of the best things about Thinner Leaner Stronger is how quickly it works.
You'll see marked improvements in the gym and mirror within your first month, and it'll only get better and better from there.
Do I have to take a bunch of supplements to follow the program?
No.
You don't have to take any supplements if you don't want to, because the vast majority of pills and powders are a waste of money.
If you have the budget and inclination, however, certain supplements can help you lose fat, build muscle, and get healthy faster. You'll learn all about this in the book.
Absolutely.
Thinner Leaner Stronger comes in three flavors, 5, 4, and 3 days per week, and individual workouts range from 45 to 70 minutes.
The bottom line is if you can dedicate 3 to 6 hours per week to Thinner Leaner Stronger, you can build the body you've always wanted.
I follow a special type of diet (vegan, vegetarian, Paleo, food sensitivity or allergy, etc.). Can you still help?
Yup.
The diet principles are very flexible and can accommodate any and all food preferences and limitations. The principles of losing fat and building lean muscle stay the same.

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