DiscoverThe Business Athlete Show#193 – The Ultimate Guide to Nutrition for Fat Loss and Muscle Gain
#193 – The Ultimate Guide to Nutrition for Fat Loss and Muscle Gain

#193 – The Ultimate Guide to Nutrition for Fat Loss and Muscle Gain

Update: 2025-10-01
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Most busy professionals want to lose belly fat, build muscle, and feel more confident, but they often get lost in the noise of fad diets and conflicting advice.


This episode breaks down everything you need to know about nutrition in a simple, sustainable way that actually works alongside a demanding career and family life.


I start by looking at food environment and why it matters so much for long-term success. 


From there, I explain calorie balance and why the calorie-to-protein ratio in your food choices makes all the difference when it comes to body composition.


You’ll learn how to estimate your calorie needs, why protein is the cornerstone of your diet, and practical ways to hit your daily targets.


We also cover carbohydrates and fats and how they fuel performance, as well as fibre and micronutrients for health and satiety.


I go into meal timing around training, what to prioritise before bed, and the handful of supplements that are actually worth considering.


To make it practical, I walk through lifestyle habits that scale:


  • Daily weigh-ins to keep awareness high


  • Building every plate around protein and plants


  • Simplifying food choices by rotating a handful of go-to meals, managing late-night eating


  • Adopting a 90/10 approach that balances discipline with flexibility


By the end of this episode you’ll have the clarity and confidence to approach nutrition without overthinking it, so you can finally build a body you’re proud of and sustain it without burnout.


Connect with Adrian


Follow Adrian McDonnell on Instagram 


Checkout Adrian’s YouTube Channel


1:1 Online Coaching ApplicationFree Metabolic Priming Diet

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#193 – The Ultimate Guide to Nutrition for Fat Loss and Muscle Gain

#193 – The Ultimate Guide to Nutrition for Fat Loss and Muscle Gain

Adrian McDonnell