Fuel and Flex with Charlie William Parks

Fuel and Flex with Charlie William Parks

Welcome to Fuel & Flex with Charlie William Parks — your weekly dose of fitness, nutrition, and motivation. Charlie dives deep with elite athletes, coaches, and creators to uncover the habits, foods, and mindsets that build lasting strength. Fuel your body right. Flex your potential.

Episodes

October 23, 2025 71 mins

Wrestling legend Bad Ass Billy Gunn joins Charlie William Parks on Fuel & Flex for a raw conversation about training, nutrition, mindset, and longevity.

At 60 years old, Billy is still in incredible shape — and in this episode, he breaks down exactly how he stays jacked, why discipline beats motivation, and how mental health plays into long-term success both in and out of the ring.

Whether you’re chasing your best physique or try...

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In this conversation, Charlie William Parks speaks with Marcus Philly, the creator of Functional Bodybuilding. They discuss Marcus's journey from being a competitive CrossFit athlete to developing a new training methodology focused on longevity and sustainability. The conversation explores the challenges of traditional training methods, the importance of consistency and enjoyment in fitness, and how Functional Bodybuilding brid...

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Charlie William Parks speaks with Dr. Eric Trexler, a postdoctoral research associate at Duke University, discussing the intersection of bodybuilding and science. They explore topics such as human energy expenditure, the implications of caloric and protein restriction on longevity, and the importance of protein intake for muscle retention. Dr. Trexler shares insights from his research and addresses controversies surrounding protein...

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In this conversation, Charlie William Parks speaks with Dr. Christle Guevarra, discussing her journey from medicine to marketing, the upcoming launch of RP University, and practical health tips for the general population. They delve into the challenges within the healthcare system, the importance of communication, and personal experiences with weight loss medications, particularly GLP-1 agonists. Dr. Guevarra shares her insights on...

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Use my code "CHARLIERP" to Save 20% on RP Strength Hypertrophy App! In this conversation, Dr. Mike Israetel discusses the complexities of nutrition, the impact of food palatability on obesity, and the cultural shifts in food consumption. He explores various dieting approaches, the rise of body dysmorphia, and how to navigate misinformation in the digital age. The discussion emphasizes the importance of understanding the relations...

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In this engaging conversation, Charlie William Parks interviews Dr. Eric Helms, a prominent figure in the sports science and bodybuilding community. They discuss Eric's journey to becoming a professional bodybuilder, the mindset shifts he experienced, and the importance of intrinsic motivation in the sport. They also discuss subjects from fitness influencers to "gaintaining," optimizing health and weight loss drugs like Ozempic and...

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In this Episode: - INTERMITTENT FASTING; THE PRO'S, CON'S AND WHETHER IT'S SOMETHING I STILL DO.. - THE BIGGEST MUSCLE BUILDING MISTAKES.. KEEPING YOU FROM MAKING GAINS IN THE GYM.. - HOUSE OF THE DRAGON SEASON 2 FINALE! REVIEWING THE LAST EPISODE AND THE SURROUNDING CONTROVERSY.. - WE ENTER THE KITCHEN STUDIO AND CHARLIE GOES OVER EVERYTHING HE EATS IN A DAY FOR FAT LOSS! Coffee Of The Day: Intelligentsia “El...

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This is your self growth magazine! This is the pre-workout for your soul! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this Episode in he discusses: - THE TOP MISTAKES MADE DURING FAT LOSS & MY FAT LOSS JOURNEY! AVOID THIS IF YOU WANT TO SHED THOSE LBS! - THE TOP MUSCLE BUILDING SUPPLEMENTS ...

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This is your self growth magazine! This is the pre-workout for your soul! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this Episode in he discusses: - FIGHTING YOUR INFLAMMATION! WHAT IT IS.. WHY IT'S CAUSED; WHY IT'S SUCH A PROBLEM TODAY AND WHAT WE CAN DO TO ELIMINATE IT! - HOW NOT TO ...

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This is your self growth magazine! This is the pre-workout for your soul! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this Episode in he discusses: - THE TOP 10 HEALTH BENEFITS OF COFFEE! YEAH THE SHOW IS CALLED CAFFEINATED AND THAT'S FOR A REASON; CHECK OUT THE HEALTH BENEFITS! - VO2 MAX 1...

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This is your self growth magazine! This is the pre-workout for your soul! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this Episode in he discusses: - BODY RECOMP! BUILD MUSCLE AND BURN FAT AT THE SAME TIME? IS IT EVEN POSSIBLE? WHO CAN DO ONE? HAVE I EVER DONE ONE? - GLUTAMINE! THE CONTROVERSIAL...

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This is your self growth magazine! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this Episode in he discusses:

- BIOTIN 101! HAIR, SKIN AND NAILS OH MY! ALL THE BENEFITS OF THE B-VITAMIN + THE CONTROVERSY AROUND.. DOES IT EVEN WORK?! - BOOSTING YOUR IMMUNE SYSTEM! THE BEST FOODS AND SUPPLEMENTS TO K...

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This is your self growth magazine! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this episode in he discusses: - WHY CARDIO IS RUINING YOUR FITNESS GOALS; WHETHER YOUR GOAL IS FAT LOSS OR MUSCLE GAIN; ALL THE MISTAKES + A COMMON SENSE APPROACH! - TESTOSTERONE BOOSTING 101; NATURAL WAYS TO BOOST THE H...

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This is your self growth magazine! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts..


In this episode in he discusses:

- THE NEW SCIENCE AROUND ARTIFICIAL SWEETENERS; ARE THESE CUTE LITTLE PACKETS RUINING OUR HEALTHY OR IS IT ALL HYPE?!

- THE TOP TEN FAT LOSS FOODS! THE FOODS THAT HELP ME THE MOST WHEN I...

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This is your self growth magazine! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this episode in he discusses: -PROTEIN & ANTI-AGING; REVIEWING THE NEW STUDIES OUT OF THE AMERICAN JOURNAL OF CLINICAL NUTRITION -DEMONIZING CORTISOL; A LOT IS BEING SAID ABOUT THE STRESS HORMONE.. WE CUT TO THE TRUT...

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This is your self growth magazine! Because you don't have time to listen to 50 podcasts, and neither does he.. Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts.. In this episode in he discusses (and dresses up as Wolverine for your enjoyment) -HIGH PROTEIN HACKS! HOW TO HIT YOUR PROTEIN GOALS WITHOUT THE EXCESS CALORIES.. -MOUNJARO; THE TRENDING WEIGHT LOSS DRUG.. IS IT LEGIT OR TO...

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Because you don't have time to listen to 50 podcasts, Charlie does the research and brings you the latest in Health, Wellness, Culture and the Arts. In this episode in he discusses -APPLE CIDER VINEGAR & FAT LOSS + ADDITIONAL BENEFITS -REVERSE DIETING 101; WHAT IS A RD? HOW IS IT DONE AND IS IT RIGHT FOR YOU? -HOLLYWOOD PHYSIQUES; ARE THEY HEALTHY TO ASPIRE TO? ARE THEY ATTAINABLE? ARE THEY SUSTAINABLE? -ALBUMS I LOVE: QU...

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Because you don't have time to listen to 50 podcasts, Charlie does the research and brings you the latest in health, wellness, music and culture.. In this episode he discusses -EVERYTHING YOU NEED TO KNOW ABOUT CREATINE -HOW THE MAINTENANCE PHASE OF DIETING CAN HELP YOU HIT YOUR FITNESS GOALS; IS IT RIGHT FOR YOU? -HOW THE 4 AGREEMENTS BY DON MIGUEL RUIZ CAN CHANGE YOUR LIFE -MAYNARD JAMES KEENAN AND CADUCEUS VINEYARDS IN JER...

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Because you don't have time to listen to 50 podcasts, Charlie does the research and brings you the latest in health, wellness, music and culture.In this debut episode in health he discusses-THIS IS WHAT HAPPENS WHEN YOU TAKE TAURINE-FAT LOSS BIGGEST MISTAKES YOU NEED TO HEAR-YOU NEED TO WATCH APPLES NEVER FALL-HAVE YOU HEARD DARK MATTER, PEARL JAM's NEW ALBUM?-WHY DISNEYS XMEN 97 IS GROUND BREAKINGFor the person who cares about the...
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