Triathlon Nutrition Coach - Jamie Leighton

Jamie Leighton
  • 5.0 (1)
  • Health & Fitness
  • Updated Biweekly

Jamie has been Coaching Triathletes Online since 2014. He initially began offering Nutrition Coaching as he noticed most coaches weren't confident or didn't have sufficient knowledge and experience to support their athletes. In that time he was worked with in excess of 1000 Triathletes, ranging from complete novice, Age Groupers, Kona Qualifiers and even Olympians. More recently he now offers a full coaching package which includes training and nutrition specific support.

  1. 2d ago

    His FIRST Ironman in 8:48! How Jack Batten Lost 10kg and Qualified for Kona

    In this episode, I'm joined by Jack Batten, who recently completed his first full-distance Ironman in an incredible 8 hours and 48 minutes, securing qualification for the Ironman World Championship in Kona. When Jack and I started working together in October 2025, his goal was to improve his body composition without compromising his performance. Over the following months, he went from 81kg to around 71–72kg, learning how to fuel his training while managing his weight. But this episode is about much more than weight loss. We discuss how Jack balanced Ironman training with a demanding career and family life, the nutritional strategies that supported his progress, and the setbacks he overcame, including a calf injury just six days before the race. We also break down his race-day performance, including a 56-minute swim, a 4:43 bike and a sub-three-hour marathon, and explore what it really takes to break nine hours in your first Ironman. Finally, Jack shares his plans for Kona 2027 and his new executive leadership and high-performance coaching venture. Find out more: Jack: jackbatten.com To arrange a time to discuss your own goals with me - click below: https://calendly.com/jamiemleighton-cqw/brainstorm-session

  2. Sep 25

    How I’m Structuring My Year to Get Leaner, Stronger & Faster

    Can you improve your body composition and triathlon performance at the same time? Yes - but that doesn’t mean trying to maximise both all year round. In this episode, I break down how I’m structuring my own training and nutrition from the end of this season through to my next 70.3. I cover: Why body composition becomes a bigger priority in the off-seasonHow my strength and endurance training will changeWhy fat loss becomes less important as race training increasesHow calories and carbohydrates should change with training demandsWhy trying to lose weight during your hardest training block can backfire The key is getting the timing right so body composition and performance work together rather than against each other. If you're training consistently but struggling to get leaner without compromising performance, you can book a free call with me below. Book a call: https://calendly.com/jamiemleighton-cqw/brainstorm-session

  3. Sep 18

    Why you can be under fuelled and still not lose weight

    Cutting calories around training feels like progress. BUT if you're starving by 9pm and undoing it all on the sofa, it isn't. In this episode I break down the mistake I see over and over with triathletes trying to get leaner - under-eating around the work that matters, then paying for it later in the day. Essentially, you don't have to choose between fuelling your training and improving your body composition. You need to get better at where you put the calories you're already eating. I walk through the three things that actually move the needle: Fuel the work that mattersRecover from it properlyManage the rest of your intake around the goal That's how you get leaner without making yourself a worse athlete. Don't get me wrong, calories still matter. BUT where you put them matters too. Want help applying this to your own training? Join the free webinar → https://nutri-tri.lpages.co/webinar-23rd-sept/ Book a call and let's talk about your plan → https://calendly.com/jamiemleighton-cqw/brainstorm-session

  4. Sep 11

    How to stay on track after Race Day

    Everyone crosses the finish line of their big race feeling unstoppable in the moment. BUT not many people talk about what happens next. In this episode I dig into the "no man's land" that hits after months of structure and a date circled in red suddenly disappear. Why most people let their training fall apart here, and why the real skill isn't finishing the race, it's having a plan for after race day sorted before race day even arrives. I also share why I booked my next race the moment I knew Vichy was done, why good races sell out faster than you think, and what this week's training has taught me about motivation, disappointment, and whether the plan actually worked. If you've just finished your big race, or you're already wondering what's next, this one's for you. Book a free call: https://calendly.com/jamiemleighton-cqw/brainstorm-session

  5. Sep 4

    Vichy 70.3: I Missed My Target By 38 Minutes. Here's What Actually Happened.

    I went into Vichy 70.3 targeting 5:35 to 5:45. I finished in 6:13. This episode is the version I didn't put on Instagram. The swim, the bike, the crash in T2, and the decision I made on the run that I still don't love admitting to. Most of the value's in the honest version, so that's what you're getting. In this episode: Why a wetsuit swim I wasn't expecting cost me more time than the swim itself.The bike decision that felt smart at 30k and didn't hold up by the finish.What actually happened in T2 (not my finest moment).The point on the run where I stopped chasing a time that was never coming.Why I'm not moping about it, and what I'm taking into the next one instead. If you're training hard and still not looking or feeling like it's paying off, that's the exact conversation I have with people every week. Book a call and let's talk about it:  https://calendly.com/jamiemleighton-cqw/brainstorm-session

  6. Aug 14

    One Week Out From Vichy 70.3 - The Stuff I Don't Normally Talk About

    I've avoided racing big events for years. Not because I couldn't. Because life got in the way - kids, two house renovations, a house move, and a business that's taken most of my attention. I've trained consistently through all of it. But this is the first proper A-race I've done in a while, and one week out, my head's doing exactly what yours probably does before something that matters to you. In this episode: why I've been avoiding this for so long, the pressure that comes with being a coach who's expected to be "good," what turning forty-eight has actually done to my times, and why being a good athlete and being a good coach are two completely different things. I'll also tell you the story of me trying to take shortcuts in school cross-country while the fast kids just won. BUT that's part of why I think I understand my clients better than someone who found it easy. If you're a triathlete who's doing the training but not seeing the results in your body or your performance, I can help. I work with a small number of endurance athletes on their nutrition, body composition, and race day fuelling. To book a free call, click the link below: https://calendly.com/jamiemleighton-cqw/brainstorm-session

  7. Jul 10

    Why So Many Triathletes Think They've Got a Sweet Tooth

    Why So Many Triathletes Think They've Got a Sweet Tooth Do you really have a sweet tooth, or are you simply under-fuelling your training? In this episode, I explain one of the most common patterns I see in triathletes trying to lose body fat: eating too little earlier in the day, then craving chocolate, biscuits and sugary foods in the evening. We cover: Why evening cravings often start at breakfastHow under-fuelling affects appetiteThe mistakes I see most oftenSimple changes to reduce cravings without relying on willpower Book a free nutrition strategy call using the link below: https://calendly.com/jamiemleighton-cqw/brainstorm-session

  8. Jun 12

    She Started Triathlon To Lose Weight. The Opposite Happened.

    She Started Triathlon To Lose Weight. The Opposite Happened. In this episode, I share the story of a client who started triathlon hoping to get fitter, healthier and leaner. Instead, she gained body fat. Like many endurance athletes, she found herself constantly hungry, struggling with overeating episodes and wondering why all the training wasn't producing the results she expected. In this episode, we discuss: • Why endurance training doesn't automatically lead to weight loss • The link between training, hunger and overeating • Why willpower is rarely the real problem • How to fuel training without sabotaging body composition • What changed and helped her finally get the results she wanted If you're training hard but struggling to lose weight, this episode is for you. If you'd like help with your nutrition, body composition or race performance, click the link below to book a call: https://calendly.com/jamiemleighton-cqw/brainstorm-session

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About

Jamie has been Coaching Triathletes Online since 2014. He initially began offering Nutrition Coaching as he noticed most coaches weren't confident or didn't have sufficient knowledge and experience to support their athletes. In that time he was worked with in excess of 1000 Triathletes, ranging from complete novice, Age Groupers, Kona Qualifiers and even Olympians. More recently he now offers a full coaching package which includes training and nutrition specific support.

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