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Host
You know, had all these ups and downs. It led you on a fitness journey, and now you're very passionate about it because you saw the impact it had.
Jack Mumford
I was obese as a kid, and then just one of the health issues I had is I was diagnosed with a brain tumor actually freshman year. Then some of the procedures and all that. I was very skinny. And then senior year came around. I played for a national prep school. My coach told me, if you don't get the 160, you don't stand a chance. So I would say that was kind of the turning point when I realized everyone says it changes your life, but I mean, I've seen it like just the way people treat you just based off how you look is incredible. Jack Mumford is a fitness model, influencer, and founder of Jacked Fitness Coaching, where he turns personal transformation into powerful results for others. I take pride in the things that most people don't do, and that's what I think overall is what separates the fitness brands because I implement the mental health component into it, which I honestly don't know another person that combined it like I have.
Host
If someone's listening, maybe their kid wants to get into entrepreneurship or they're young themselves. What would advice would you give to, you know, a young entrepreneur?
Jack Mumford
Yeah, I would say.
Host
It spans the.
Jack Mumford
Globe like a super high cold Internet Elvis.
Podcast Intro/Outro Voice
Ready for me.
Jack Mumford
Today, Apple is going to reinvent the phone.
Podcast Intro/Outro Voice
It's not over until I win. The Living youg Legacy podcast. For those who live to leave a legacy that's extraordinary. The impossible has happened. Oh, that is sensational. Jordan, Open Chicago with the lead. You said Paul is the fastest man on the planet. You can live your dream.
Host
What's up, guys? Welcome back to another episode of Legacy Makers. Joining me today is Jack, one of our youngest legacy makers. And really we're going to talk about young entrepreneurship, how to start young, how to get into this, how to define the odds. You know, he's built a successful fitness coaching business in just a few months. Something that most fitness trainers, personal trainers, would spend many years wanting to do. So really excited to dive in. Welcome to the show.
Jack Mumford
Thank you. I appreciate it.
Host
So let's talk about it. You, you know, you got started young, you're doing an incredible job, already changing, you know, people's lives from obviously all around America with your online business. Do you want to tell everyone just a little about what you do?
Jack Mumford
Long story short, I played basketball all my life, but actually I saw God got me in another direction. So August of last year, I came Back home from basically your chasing your whole life on this one dream, and you finally get it. But what I found out is instead of it being my passion, my whole life, and they'll make a lot more sense later, but I've always been doubted. So I was doing it more to prove a point to the people that doubted me than to do it for myself.
Host
In basketball.
Jack Mumford
Yes.
Host
Okay.
Jack Mumford
And that, then, that wasn't good. But during those times growing up, I dealt with some health issues. I was a very, I was, I was obese as a kid. And then later down the line, one, just one of the health issues I had is I was diagnosed with a brain tumor actually freshman year. Then some of the procedures and all that. I was very skinny. And then senior year came around. I played for a national prep school. My coach told me, if you don't get the 160, you don't stand a chance. So I would say that was kind of the turning point when I realized everyone says it changes your life, but I mean, I've seen it like just the way people treat you just based off how you look is incredible. I mean, I dealt with bullying too. So I remember junior year is one of the worst years, bullying wise. I faced next year, senior year, like nothing happened. And that's, and that's count. That's exactly why I went into it, just because of everything I dealt with. I'm like, I want to say it's small, but it's like a ripple effect. That small thing impacts every other area of your life. And that's why I want to help people with that.
Host
Yeah, I mean, there's a lot to unpack there already. So, you know, had all these ups and downs. It led you on a fitness journey and now you're very passionate about it because you saw the impact it had. So what? Just anyone listening? What, what do you do now?
Jack Mumford
Yeah, so I'm an online fitness coach. And the reason I chose the online route was because I can charge my clients for less while giving them better results. And the reason it's better results is because you, your classic in person trainer, they don't use, come in, work out for an hour, you're gone. They don't track your diet, they don't hold you accountable. Me personally, my clients send a screenshot of their workout if they had it that day, and then their macros, calories, depending on the person. Some other people, as you know, as a fitness guy, it doesn't sit right with their head to get a little too OCD about it. So I also have another thing I do where it's more of a habit based thing. Did you eat this many vegetables? This many? That sort of thing. But yeah. And the reason that works is because everyone knows diet's the most important part of getting results in person. Trainers don't even. I, I mean, I've yet to actually see someone that sits down with a client because I've worked at gyms and not as a trainer, but just as a receptionist and, but I was. Had relationships with people that work there and they don't care about the diet at all. And I'm like, I feel bad for these people paying their hard earned money and they're not, they're literally doing 10 of what's gonna get them.
Host
Yeah, yeah. I mean, you can't work much magic in a. I mean, when I was a personal trainer in the gym, I'd tell my clients, you can't work much magic in an hour. You know, there's only certain amount of calories you can burn in one hour. It's, it's everything outside the gym. And, you know, I think that's what made me more unique. You know, 15 years ago when I did it is I would give all my in person clients a workout plan for the rest of the week and a nutrition plan for the week.
Jack Mumford
Yeah. So you're ahead of your time.
Host
Yeah, yeah, very much so, yeah. Because I knew KN how important it was and eventually it led me to going more online and helping thousands or tens of thousands of people. So. And I know that's your goal too, you know, to scale, grow and impact people. Let's talk a little bit about your health journey though. What, what were some of the defining moments and what did you learn during that process around your health?
Jack Mumford
Yeah. So, I mean, even as a kid, I, I was born for like four weeks premature. I just never, I was so I was never, I guess you could say healthy though. You're typical. I was very big as a kid.
Host
And so born small, then grew up big, then got skinny again.
Jack Mumford
Yeah, it's been like journey. One big thing is my whole life I've had anxiety, but I didn't realize this until. And honestly, probably last year coming back, this has been a, it's been a tough year, but the most, I've grown the most. Last year I had a family member. Out of respect, the family, I won't say what happened to him, but he's now no longer a part of the family and he was a father figure to me and just like that, he was gone. Then second grade, you just don't know what happened. So all I know is someone's really important in my life is gone. And later I found out is that's really what started my anxiety, like, bad. I. I do take meds for it now. I'm like, I like to be open about that because I do think for certain people, it does help. Like a few years down the line, we look back and I remember I was acting very weird in school, and it was because this certain person left and it was anxiety. But during this time, also, I was gaining a lot of weight. So what we found out, me, my parents and doctors, is I couldn't decipher between the feeling of hunger and anxiety. Every time I felt anxious, I just wanted to eat. So that's why I. This is actually a fact. I weighed as much as I did. It was fourth grade, as I did in 10th grade, which is pretty interesting to think about, but. But no, I could talk. That was just the beginning of my journey. There's a high school and junior high field, like 10 years of its own, but wow.
Host
And let's talk a little about. I know a big thing you're kind of passionate about is the young entrepreneurship side. And you're obviously a great example of that. How, you know, if someone's listening, maybe their kid wants to get into entrepreneurship or they're young themselves. What would advice would you give to, you know, a young entrepreneur?
Jack Mumford
Yeah, I would say I have a best friend, actually. No joke. This was one. One and a half weeks ago, we were driving to Tempe, I'm in Arizona. And he said he was asking me, what do you plan to scale your business to? And I told him the answer. I go, I mean, I want it over a mill a month. And that's at the very least. And he goes, you are utterly delusional. And that is the exact reason I love you. And, like, I'm literally thinking about making that clothing brand, like, utterly delusional. Like, that is the biggest compliment I could ever get. Because come going back to what I was saying, I've been at rock bottom. I had. I have a brain tumor. Which just to touch on that, that will give you a different perspective on life. Like, that's why I resonate with you so well. And just your mentality and I mean, we're on a yacht 30 minutes ago, and you're already here. Like, I don't waste time. Like, my Google calendar is like this. Because, I mean, life is precious, dude. And it goes by so fast. And everyone that's saying, you got time and all this. Like I feel behind, to be honest. Like I know some kids my age making. There's one kid in my mind from Arizona, he's does a scaling company for brands. He's making 5k a month, living in a Miami high rise. But the reason I say that is because for young entrepreneurs, you need to surround yourself with people that kind of like Alex Ramosi's talked about that have been where you want to go or are headed that way. It doesn't mean like my parents, they're, they aren't where I want to be. It doesn't mean you'd be a douche and tell them, hey, you're wrong. Because I mean, I've had trial and error with that. Not saying that exactly, but like respect them. But no. So everything they say doesn't have to be the truth. And yeah, yeah, that was hard for me.
Host
I mean, I think it's really important to, you know, a lot of people want to give you advice in your journey, but generally, yeah, I agree. You should listen to people that have a track record and have done it because there's a lot of people that will want to give you advice in your entrepreneurial journey where they haven't done it. You know, and even the same in fitness, there's a lot of people that aren't very fit that you think, I tried this diet, it's great, you know, and, and yeah, it's very easy to talk, but it's, it's much harder to walk the walk and get the results from it. And I think entrepreneurship's interesting because most people don't understand it, but they love to still give input.
Jack Mumford
Yeah.
Host
You know, and often, you know, family and parents, they do it because they're trying to protect you because they don't understand it themselves. So it just doesn't comprehend. So I, I do love that. And I also. One thing you mentioned that I think is interesting too is some people say, oh, your 20s to 30s, don't worry about it. Just figure, you know, go have fun, figure out what you want to do. But I do think this, you know, you can have tremendous growth and, and create tremendous things. You know, I became a millionaire in my 20s and you know, created a lot of great connections. And by 30 years old, I was pretty set in life. I knew a lot of amazing people and had a good brand because I work so hard in my 20s, you know, I'd work all day every day. But I still think I had one of the best 20 to 30 year old lives that out of everyone I knew and I worked a lot, I traveled the world and made lots of money, moved to America, I had a great life. So I don't think it has to be an either or. It can be.
Jack Mumford
Exactly.
Host
You can get really far ahead and have an amazing life and work really hard.
Jack Mumford
Exactly. I completely agree.
Host
So what's your plan the next 10 years?
Jack Mumford
Oh, my goodness. Next 10 years. I mean, I'm, I'm attending it in Rudy's mastermind the past few days and we were talking about our 12 month goals. I'm not someone that I don't. Well, I, what I, what I truly want to hit, I'm gonna hit. At least that's what I'm gonna aim for. Even if I fall halfway, that's, I'm, that's how I push myself. I mean, I want to hit right now. 100k a month is not out of reach for me. If I. Especially with the strategies that you've taught over the past few days and some of the methods and hiring some more people, which I actually have two interviews today, so I'm excited about that. But no, definitely over 100k. I have my first million dollar year, which obviously I know I've only been five months in, but I want to think ahead and I want this brand to be, yes, it is my name, but I think when we talk about legacy, I want them to see the person behind it and that this dude can do it from all these different challenges that he's faced that I don't wish, and I've only touched on it a little bit that you can see in my Legacy Maker episode. But any, literally anyone can do it. I mean, I don't even know. It's hard for me to put in the words I'm that passionate about it and it, it keeps me up at night. I just, I'm always wanting to do it just because I know, I know what it can do for people and I know what it did for me and how it changed my life. So that's why I'm so motivated by it. Yeah.
Host
Well, let's talk about that. What does legacy, you know, mean to you long term?
Jack Mumford
Yeah. I mean, to be quite frankly, at least this is how I think about it. I think when I'm dead, what's going to be left behind? My family's gonna have, they're gonna remember my character, how I treat people, how I made them feel when they walked in the room. Certain things like that, and those are little things I do personally, I care About a lot. Just because I was the kid that was bullied, I never. I sat alone every year at lunch. So I care about those things a lot. I take pride in the things that most people don't do. And that's what I think overall is what separates the fitness brand is because I implement the mental health component into it, which I honestly. I'm trying to even think of someone I honestly don't know, another person that combined it like I have.
Host
Yeah.
Jack Mumford
And obviously I don't give out the certain strategies I use unless you're a client. But I think if you are a very strong person, at least from the look aesthetic, esthetically, that's like you. When you walk into a room, you automatically gain respect because people know, no, you didn't just build 30 pounds of muscle and go on your body like that means you ate right. You. At least for most people, unless you're on steroids. You slept good, worked hard.
Host
Yeah.
Jack Mumford
Yes, exactly.
Host
So yeah. Yeah. For a very long time too. You know, it takes a long time. Good.
Jack Mumford
Next.
Host
Next. And kind of one of the final questions. You've already talked about it a little, but what are some other things people get from your episode that they didn't get here?
Jack Mumford
Yeah. So big thing on the episode is I'm gonna go more into the. I've touched on it, some of the struggles I've gone through, but I've been rock bottom. And I think that's why I'm so motivated because. And like, you could say entrepreneur is a risk. I don't see it as a risk. I've already been up at rock bottom, so this is gonna work out. I don't use. Like when people say, think if, like, I usually say, sorry, what'd you say? Like, no, it's either gonna happen or it's not. So I always say, no, this is gonna happen. And even if it was God's plan for it not to happen, I'm just going back to where I was. So it's a net gain either way. But no, you're going to. You're going to learn more about the personal struggles, the health issues that. Don't pray on my worst enemy. It was me by myself a lot of. A lot of the time. Very, very hard times. Specific incidents that, I mean, just sounds like it comes out of dang big box office. Dwayne Johnson movie. Like it. It's pretty crazy. I still can't really process some of the things that happen, which I think I still need to heal from. But I think that's part of why I'm doing what I'm doing. Because a lot of people, they show you the finished product. I'm still healing for that. And I don't think there's a lot of people that are open about and.
Host
Sharing that journey for us. Yeah, Love it. Good. Last question. Where do they find you if they want to learn more? Maybe hire you?
Jack Mumford
Absolutely. So my Instagram is my main way to reach out to me at the Jack Mumford Mumford. And that's the same with my YouTube and TikTok. And then you can also find my contact information in there. And if you DM me, I'll get back within 24 hours.
Host
Love it. Well, guys, that's a wrap. Awesome entrepreneur story and obviously so much to unpack. More in the episode and great inspiration for the next generation of entrepreneurs. Young entrepreneurs doing their thing. I love young entrepreneurship. I got into it young and I wish I had been able to get in rooms and have mentorship from people like me when I was just starting out at 17, 18. So it's great that you're doing that because you'll go much further, much faster.
Jack Mumford
So thanks.
Host
Alright, guys, keep working hard, build an impact and leave a legacy. I'll see you soon.
Podcast: Living Your Legacy
Host: Rudy Mawer
Guest: Jack Mumford (Founder, Jacked Fitness Coaching)
Episode: Defying the Odds: From Brain Tumor to Fitness Coaching Enterprise
Date: October 16, 2025
This episode of "Living Your Legacy" brings on Jack Mumford, a young entrepreneur who has turned immense personal adversity—including childhood obesity, severe anxiety, bullying, and a brain tumor diagnosis—into the driving force behind his thriving online fitness coaching business. Jack and Rudy dive into topics of personal transformation, the intersection of mental health and fitness, and actionable advice for young entrepreneurs. The conversation is both candid and motivational, delivering deeply personal stories and clear, practical wisdom for listeners inspired to build their legacy by defying the odds.
“I was obese as a kid, and then just one of the health issues I had is I was diagnosed with a brain tumor...I was very skinny.” (00:06)
“I was doing it more to prove a point to the people that doubted me than to do it for myself.” (02:42)
“I sat alone every year at lunch. So I care about those things a lot.” (13:35)
“Instead of it being my passion, my whole life...I've always been doubted. So I was doing it more to prove a point...” (02:41)
“That small thing impacts every other area of your life.” (03:46)
“In person trainers...don’t even...care about the diet at all. I feel bad for these people paying their hard earned money and they're literally doing 10% of what's gonna get them.” (04:53)
“I take pride in the things that most people don't do. And that's what I think overall is what separates the fitness brands because I implement the mental health component into it, which I honestly don't know another person that combined it like I have.” (00:49; 13:47)
“Life is precious, dude. And it goes by so fast. And everyone that's saying, you got time and all this...I feel behind, to be honest.” (09:02)
“For young entrepreneurs, you need to surround yourself with people that...have been where you want to go or are headed that way.” (09:30)
“He goes, you are utterly delusional. And that is the exact reason I love you. Like, I'm literally thinking about making that clothing brand, like, utterly delusional.” (08:37)
“You can get really far ahead and have an amazing life and work really hard.” (11:44)
“My family's gonna have, they're gonna remember my character, how I treat people, how I made them feel when they walked in the room.” (13:32)
“A lot of people, they show you the finished product. I'm still healing for that. And I don't think there's a lot of people that are open about [it].” (15:41)
On Overcoming Trauma With Action:
“I've been rock bottom. And I think that's why I'm so motivated because...I've already been up at rock bottom, so this is gonna work out.” (14:59)
On Integrating Mental Health In Fitness:
“I implement the mental health component into it, which I honestly don't know another person that combined it like I have.” (00:49; 13:47)
On Ambitious Goals and Urgency:
“[My friend] goes, you are utterly delusional. And that is the exact reason I love you.” (08:37)
“100k a month is not out of reach for me...I have my first million dollar year...I want this brand to be...something where, literally anyone can do it.” (11:52)
On the Power of Community and Real Advice:
“For young entrepreneurs, you need to surround yourself with people that...have been where you want to go or are headed that way...everything [family] say[s] doesn't have to be the truth.” (09:30-09:51)
This episode showcases Jack Mumford’s extraordinary journey from battling grave health and personal challenges to building a fitness enterprise rooted in empathy, accountability, and holistic wellness. His story is a testament to channeling adversity into a meaningful legacy, blending mental and physical health, and the power of ambitious, unapologetic entrepreneurship at a young age.
A must-listen for anyone seeking inspiration and a blueprint for turning personal pain into purpose-driven impact.