The "bulking" program for women. We'll teach you how to build muscle, gain strength, and move the scale up every week.
Our workout routines are programmed by Marco Walker-Ng, BHSc, PTS, PN, a certified strength coach with a health science degree who's helped college, professional, and Olympic athletes bulk up.
As a general rule of thumb, the thinner you are starting out, the more quickly you'll build muscle. Just remember that we're all different. Our testimonials are just examples. You won't look like them, you'll look like a stronger version of you.
Don't mistake that for a cop-out, though. We have an unconditional refund policy. Your results are fully guaranteed. Everyone can build muscle.
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Gain 10–15 pounds of solid muscle
We'll help you build muscle from head to foot by getting stronger at the big compound movements.
Stand taller, straighter, and stronger.
We'll help you improve your posture, allowing you to stand in a stronger and more confident position.
Become Bigger. Yes, Bigger.
The world needs more of you, not less. We'll help you build a stronger, healthier, and bigger physique.
“I gained 8 pounds in 3 months. I saw results after one week! I'm thankful that I took a leap of faith and gave b2Bomb a try!”
Melissa B., Yoga Teacher, 27 years old
Why is it so hard to gain weight!?
Despite what our overweight friends tell us, truth is, it's actually pretty hard for us to gain weight! We're naturally skinny ourselves, and we have a dozen failed weight-gain attempts between us, ranging from hiring personal trainers to buying online bulking programs. No matter how much exercise we did, no matter how much food we force-fed ourselves, we still couldn't gain weight.
We thought we were doomed to stay skinny forever, and we were going through our lives with all of these failures looming over us, everyone constantly reminding us by telling us to "just eat a burger," saying "I wish I had that 'problem.'" Our "problem." In quotation marks. Gah.
We felt like we were trapped in the bodies of little kids. Like puberty skipped us.
The good news is that our genetics are perfectly fine. We've just got a rarer body type. Some people call us ectomorphs, others call us hardgainers, but we normally just call ourselves "naturally thin." Not that we're stuck that way, just that if we neglect ourselves, that's the default we revert to.
There are a few reasons why we're naturally thinner:
- We have higher metabolisms, often because we move more, fidget more, and adopt less efficient postures (non-exercise activity thermogenesis). Having a thinner body also means that we lose our body heat more easily, burning even more calories (Allen's rule).
- We have smaller stomachs, and it's easy to see why—our torsos are thinner! Plus, we haven't stretched our stomachs out from years of overeating. In fact, our stomachs can be up to six times smaller than other people's.
- We have great insulin sensitivity, meaning that when we eat an appropriate amount of food, we get full. This is super healthy, of course, but it makes overeating difficult.
Now, lest this turn into a sob story, we'd argue that we've got the best body type. None of these traits are bad. In fact, most of them are good! It's just unusual to have trouble gaining weight.
What's neat about being teamed up with other naturally skinny people is that we can gripe about our woes and have people actually understand what we're talking about. Yeah, I felt too full to have the delicious banana bread that my wife made me last night. That's why I didn't eat gain any weight yesterday. Sounds weird to most people, but you probably know what I mean. We get anti-cravings.
Now, not everything changes. If we want to be strong, healthy, and look great, we still need to get most of our calories from whole foods, we still need to lift weights, we should still do some cardio, we still need plenty of good sleep. The fundamentals are still the same.
But we do need to flip some fitness advice on its head.
- We need to eat a good diet that helps us gain weight. We shouldn't be focusing on low-calorie foods like salads and broccoli, we should be focusing on hearty foods like trail mix and chocolate nut-butter smoothies—foods that make it easier to gain weight. That way we can gain weight even with the skinniest of stomachs, even with the most meagre of appetites, and even with the wildest of metabolisms.
- We need a workout routine that helps us gain size and strength. We need to focus on getting strong at the big compound lifts, adding weight to the bar every week. But not necessarily "strength training," which is often rooted in powerlifting. We're not trying to squat, bench, and deadlift as much as possible for a single rep, we're trying to get bigger, stronger, healthier, and better looking.
- We need to live a healthy lifestyle. And for us, a healthy lifestyle means choosing foods that are rich in calories, saying yes to dessert more often, remembering to eat when stressed, and making sure that we keep our muscles, bones, and tendons strong.
And, of course, all of this needs to be efficient because, realistically, some of us are doing this while juggling three children, working full time, and getting a degree.
Your results won't be mysterious. There's no hope involved. No guesswork. Just step on the scale once per week to see exactly how much weight you're gaining. Watch your measurements grow every month. Plus, the cool thing about gaining weight is that it's easy to see, and it looks awesome:
You'll see steady results every week. And if you don't, we'll fix it. Fast. The only way to guarantee that you gain ten pounds in the next ten weeks is to make sure that you're gaining a steady pound every week. That means that we'll know after the first week exactly how things are going, exactly what we need to adjust.
There's no hoping and praying week after week. We just follow the plan, measure the outcome, adjust accordingly. That's how we can absolutely guarantee your results.
That's not to say it will be easy. You'll need to do your three workouts every week. You'll need to adjust what you're eating. You'll need to make sure that you're sleeping enough. And even if you want to get supplements, they'll barely do anything. It all boils down to exercise, diet, and lifestyle.
And did we mention that you'll feel full sometimes? We'll give you every single trick in the book to help you eat more calories more easily, but gaining weight always means fighting against at least a little bit of fullness. It's best to be prepared for that ahead of time.
But if you put in the work, you'll get the results we promise. That's our guarantee.
The Complete Bony to Bombshell Program
Version 2.5, Refined Over 8 Years
The complete female ectomorph bulking system.
No fads or angles, tricks or pills. Just raw, rugged science.
The Bony to Bombshell eBook
This 225-page eBook covers the fundamentals of building a strong, sexy, and feminine physique with weights and nutrition.
And it's a bulking program for female ectomorphs, so it's designed to help you leap over ecto-hurdles like:
- A small stomach capacity
- A meagre appetite
- A fast metabolism
- Lanky arms
- Flat butt
- Crumbling posture
We know you don’t have the bottomless, eager stomach. We’ll teach you all about appetite, energy density, digestion, and how to eat a proper ectomorph bulking diet for women.
Take advantage of your body type. We’ll teach you how to leverage your genetic advantages. For example, ectomorphs tend to have higher insulin sensitivity and metabolisms, allowing us to build muscle and stay leaner compared to other body types.
Overcome setbacks. Many skinny women have poor posture, nagging aches, and digestion issues. We’ll help you work around any problems you have. And in the process, you'll strengthen your digestive system and increase your bone density, tendon strength, joint health, stabilizer muscle strength, posture, and general health.
The Bombshell Workouts & Guide
We know you're in a hurry to curve up. This isn’t one of those programs where the results are so slow, you wonder if it's working. No, we go after muscle gain mercilessly.
To do this, we take the best that bodybuilding, strength training, callisthenics and athletics training have to offer. All of it designed to help naturally skinny female ectomorphs & hardgainers gain weight as quickly as possible.
Ideal (sexy) aesthetics. One of the reasons our clients have such impressive transformations isn't because they gain a lot of weight, it's because they gain a lot of weight in the right places.
Building a physique with a healthy amount of muscle and bodyfat levels with will be the biggest visual impact on your physique, but you also could build a bigger butt while keeping your waist toned (waist-to-hip ratio). This will give you a sexy hourglass physique that naturally holds your body with great posture. (One Bombshell member called it the Coke bottle curves.)
Research shows that developing your waist-to-hip ratio will get your body rated as the most attractive by men. (It also looks the raddest to other women, too.)
No more flat butt. If you have a naturally narrow structure, your hips may not be that wide and you might have a flat button. A squat movement is one of the best movements you can do, but there are ways to maximize butt size by doing some extra glute work.
Our workouts take into account all of the bulking research published up until 2020. Our only bias is towards helping you build muscle, and we're totally obsessed with bulking research.
Marco graduated with a degree in health sciences. Since then he's been flying around the world going to conferences, interning under strength & conditioning legends, getting new certifications, and training clients ranging from everyday skinny guys, to professional and Olympic athletes, to doctors and dieticians.
Marco uses his education and experience combined with the best available scientific evidence to meticulously optimize exercise selection, rep ranges, weekly lifting volume, tempo—everything. Even the rest times between exercises are geared towards giving you an impressive physique.
All of this is clearly organized workout by workout, phase by phase. No guesswork involved. Record your results, track your strength improvements, and collect your muscle gains.
The "Easy-Curves Recipes" eBook
What good is understanding nutrition if you still don't know what foods to eat or how to prepare them?
Jared and I had a lot of trouble figuring out what to eat when we first started, and not surprisingly, considering most recipe books don't care what effect their recipes have on your physique. Worse, the recipes that do take your health into consideration are usually targeted at people trying to lose weight.
So we made an Easy-Curves Recipe book with 14 recipes.
We'll show you how to cook a week's worth of dinner in one pot by making a big pot of delicious stew or chili. We'll show you how to make two weeks worth of homemade protein bars that you can bring on the go with you. And how to blend up a perfect smoothie in 2 minutes. We've even got muscle-building desserts.
We're pretty normal. We like to eat real, fresh, and healthy food. We know you probably have a boyfriend, family or social life. These are delicious recipes that are healthy, easy to prepare, and will help you build muscle more easily in the right places.
To make things even easier on you, we also calculated out the calories, protein/carb/fat breakdown and explain the main muscle-building and health benefits of the meals.
Online Training Video Course
I remember one of the first conversations I had with Marco about strength training went something like this:
Me: Well we're skinny, so I figure we're not lifting that much weight, so our chances of injury are small, right? I mean if a powerlifter can bench 500 pounds with shoddy form, I shouldn't be too worried about mine, right?
Marco: What?! No! Ah! You're an ectomorph with long limbs, a small bone structure, and low levels of musculature—you're an injury waiting to happen!!! Ectomorphs need to pay attention to form more than anyone until they've built some muscle mass! ... wait, why aren't you lifting much weight?
Besides, there are a dozen ways to do each lift with a variety of different outcomes: general fitness, injury rehab, sports performance, cardiovascular health, muscular endurance, getting stronger with gaining size (for strength athletes), and gaining size without any regard for strength (some bodybuilders).
Many women asked a friend or youtubed someone doing the exercise, having no idea what that person's goals were, or even if that person had any idea what they were doing to begin with.
We make it simple: lift like this, grow like a Bombshell.
We also provide access to our complete online video library which includes 125+ videos, and is continually being updated.
A Year of Coaching in the Community
We're all ectomorphs and we're all here to build muscle, but that doesn't mean we're all identical. We all have different situations and we all have different goals. Some women may already have broad shoulders and mainly want to work on their waist-to-hip ratio. Other women may be more pear-shaped and while they want a bigger butt, may want to work on their shoulders a bit for a more hourglass physique.
Nothing ruins trying to build muscle like running into a problem and not having a clear solution. We're here to coach you through it. This is the members-only coaching community where all the before/after photos you’ve seen on this site come from. (With their explicit permission.)
This is also where we can put you on a specialized protocol to further develop a lagging muscle group (e.g your shoulders) or a target area (e.g. your butt).
We'll teach you how to track your progress so that we can see exactly what is and isn't growing. This lets us give feedback to keep you on track, and it’s also motivating for everyone else in the community when someone finishes a 5-week phase and posts a new round of progress photos (usually having gained 2–5 pounds).
The forum is also a great place to discuss current issues when it comes to strength training and nutrition. There are advancements and interesting studies being published all the time. This is what we do for fun—it keeps us on our toes.
Most of all, we take your success with this program seriously. We leave no bony behind.
This is how we can guarantee results.
Our 100% Money-Back Guarantee
We have a full 100% money-back guarantee. No fine print, no hassle. Come into the program as skeptical as you like. Try it out, see if you like it. If you don't, shoot us an email within 30 days and we'll refund every penny.
Join over 3,001+ naturally skinny women who are using Bony to Bombshell to gain lean weight fast
Aomi gained 11 pounds in 3 months, adding 3 inches to her hips. By the end of the program she was glute-bridging 300 pounds.
Cecile gained 13 pounds, adding 2.5" to her hips, 3" to her shoulders, and 3" to her thighs, finishing with a 315lbs glute-bridge.
Joanna gained 10 pounds, adding 1.5 inches to her hips while simultaneously shrinking her waist down by 1 inch.
The Team Behind Bony to Bombshell
We're the three skinny guys behind Bony to Bombshell. We had doctors tell us we were dangerously underweight, we had parents worried we were too skinny, and we had strangers telling us we should "eat a burger." So we decided to make a change.
Marco (left) has gained 65 pounds, Shane (middle) has gained 55 pounds, and Jared (right) has gained 45 pounds.
First, we made The Bony to Beastly Program and helped nearly 10,000 skinny guys bulk up. Thing was, a lot of our readers were women, and they were asking us to make a women's weight gain program. They told us there were even fewer resources out there for women. And they had a point.
That's why we built Bony to Bombshell, and so far we've helped over 3,001+ women accomplish their weight gain goals.
What about credentials? Marco programs all of the workouts and teaches all of the exercises.
- He's a Certified Personal Trainer with a bachelor's degree in Health Sciences from the University of Ottawa (BHSc).
- He made a living helping professional and Olympic athletes build muscle to improve their sports performance, including members of the Canadian Women's Sevens (Olympic rugby players).
- He continues to learn through his certifications such as Postural Respiration (PRI), Myokinematic Restoration (PRI), Pelvis Restoration (PRI), Olympic Lifting with John Broz, and Precision Nutrition L1.
Here's what members had to say about Bony to Bombshell:
Feeling stronger than I've ever felt
The B2B program has been an education for me. Now, every time I see a TV commercial, magazine ad, or infomercial for some diet, gadget, or pill that'll promote weight loss and tone one's body from head to toe, I just cringe thinking about how many people are getting scammed.
So here I am, seeing results, feeling stronger than I've ever felt, and it's fun and so doable!
46 years old
Making it easier to stick to
This plan really helped get me going on a new lifestyle that I have stuck to for longer than I've stuck to anything fitness related (1+ year!).
It truly has helped set me up for a new lifestyle which has become pretty automatic at this point.
29 years old
An Example For My Daughters
In 5 months I gained 10 lbs in all the right places I've never felt better or more energetic and the best part is that I'm setting the example I want my daughters to follow, eat for energy and performance, train for fun.
We live in our bodies. It's nice to have a nice one.
If this were just some sort of makeup transformation, I'd feel hesitant to push it this hard, but this is your health and physique we're talking about. This is what's going to keep you looking and feeling young as you age. This is how you feel powerful in your body. This is how you build a strong heart, strong bones, strong tendons, and strong curves.
And speaking of which, having bigger legs is associated with better brain health. And having strong hips is the number one way to prevent lower back pain. These are amazing, deep improvements. This is how you transform from the inside out.
We personally know the cost of ignoring our bodies
At 23, Jared required prescription painkillers for his tendonosis and was having trouble sitting at his desk for more than a couple hours at a time. By the time Marco finished university, his posture had collapsed, leaving him with low energy levels and nagging pains. And Shane was not only considered too fragile to spar with the other guys in his martial arts classes, he was also at high risk of having a heart attack due to his low bodyweight and poor lifestyle.
Taking care of your body is important. We learned that the hard way. Whether or not you choose to follow this program, you have to get this issue handled somehow. You need strong bones, strong muscles, and a strong posture.
With an exercise and diet routine that suits your body type and your goals, we know that you can become your best self. That's why we made this program. That's why we want to help you. That's why we promise you that we'll help you.
These members had this to say:
Hesitant to confident
I felt hesitant about joining an online program, but what other program is out there to help women gain weight?
They back everything with research and are very educated. They really put the work in for this lifestyle! I felt confident in what I was getting into.
I wish I had known sooner and been able to pull the trigger faster.
No more back pain!
My posture improved in an amazing way, and my back pain has by now completely disappeared.
On a more aesthetic point of view, I gained firm curves in the right places. I am still pretty slender but I look athletic and healthy, not anorexic anymore.
Gained 13 pounds, Age: 28
Works—even from home
My biggest concern with purchasing the program was that I wouldn't see results, as I hadn't seen results from other workout programs. But I was wrong about that.
I have also done this program solely at home. It has required that I invest in some equipment but having the convenience of working out at home has made this program work for me.
I would definitely recommend the program if your goal is to gain weight/muscle and get stronger.
Policy Analyst, gained 11 pounds