I have worked with Adam and Lily on three of their Accelerate programs. I’ve learned so much about nutrition and exercise, really practical lifestyle changes. It’s unlike any other weight loss program... See more
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- #59 of 231 best companies in Fitness and nutrition
Written by the company
One Coaching is a mindset-first fitness coaching company helping career-driven women aged 30–45 reclaim their bodies, self-confidence, and identity. Through our signature 4:1 Health System, we focus on sustainable weight loss, strength building, and mindset transformation - without quick fixes or restrictive diets. We offer group and 1-1 coaching programs designed to work around busy schedules and real life. We are based in the UK & offer online coaching only. Please note: We are One Coaching and not affiliated with any other similarly named coaching companies. Our official website is www.theonecoaching.co.uk
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United Kingdom
- theonecoaching.co.uk
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Accelerate and One Coaching
My weight gradually crept on through the menopause and I just couldn’t shift this and it had an impact on my general mood and energy levels.
Having successfully completing 2 rounds of Accelerate in 2025 I then took the decision to join the 1:1 programme as I knew I wanted to continue my journey to reach my ultimate goal.
I entered this with excitement but also trepidation as I had never had any previous 1:1 coaching and at 60+ years it did feel daunting.
I had a call with Adam and he put me at ease and answered all my questions. Accelerate gave me the determination and drive to take this next step as I knew I could go further.
The 1:1 has completely changed my mindset around food and nutrition in a positive way and taught me that you can still live your life and enjoy treats. Knowing I could decide what I ate based on my given calories and macros gave me the freedom and flexibility to fit this into my own lifestyle.
The community group is the most supportive and engaging forum with others who are all on the same journey albeit at different stages and can therefore share experiences of both the highs and lows.
Both Adam and Lily are hugely approachable, supportive and never judgemental.
Joining One Coaching was absolutely my best decision and an investment in my own health and wellbeing. I feel happier, healthier, fitter,stronger and overall more confident.
10/10 Adam and Lily
Accelerate and One Coaching
I joined Accelerate as I had tried everything to lose weight and nothing was working. Adam and Lily give you all the tools and guidance you need to lose weight and keep it off! I was so impressed that I joined their one to one program and had some great mindset coaching with Lily, she made me realise that losing weight is so much more than just calorie counting. I have lost over a stone and I still eat chocolate and drink wine! I was also inspired to join a gym. It has changed my life for the better and at 50 I’m fitter, stronger and healthier than I’ve ever been.
10/10 for Adam and Lily!!
As a busy mum to three boys I’ve tried many ‘diets’ from a fairly young age and even the big branded ones such as slimming world. Did I loose weight? Yes I did but did I keep it off? No I didn’t! The constant yo-yo in weight, clothes size and my metal health. A friend of mine recommended Accelerate and the results on her were clear it worked. She spoke so highly of Adam and Lily so I thought you know what I’ll give it a go! So 4 months after having my youngest I signed up and started the programme. Yes it felt daunting at first but that was because I was worried it was going to be the same as all the other healthy eating programmes out there. But I can safely say after two round of accelerate and loosing 30+lbs this programme really works! There’s none of this you can’t eat sugar or carbs. You can eat everything you would usually have but get a good mindset on not needing to over indulgence on it. The workouts are short but so effective. Adapted for home or gym and around a busy lifestyle. There’s no judgement from Lily or Adam, they completely understand busy life’s and how things don’t always go to plan. But they get you back on track and are always there if you need advice or reassurance.
The work they have done to create this programme is amazing and I can’t thank them enough.
If anyone is thinking about giving it a go my advice would be do it!!
Exactly What I Needed Postpartum
I started working with Adam Cox three months postpartum and honestly couldn’t have asked for a better personal trainer. He’s a great guy with amazing energy, and his approach made the whole process feel simple, manageable, and not stressful at all. The steps were easy to follow, he always held me accountable in such a supportive way, and he really understands the reality of busy work-mum life.
Thanks to his guidance, I managed to get my weight right down to where I wanted it to be without ever feeling overwhelmed. Not long after, I found out I was pregnant with my second, and I’m genuinely looking forward to working with Adam again to rebuild my body confidence after this pregnancy. I can’t recommend him enough.
Amazing support from Adam and Lily at One Coaching
I’ve been working with Adam and Lily at One Coaching for just under a year. I decided I wanted to prioritise my own health and fitness for myself and as an example to my daughter so signed up for their one to one coaching. It’s honestly been amazing and has changed my life. I have lost over 16kg and dropped 2 clothes sizes but more than that I feel fitter and stronger, and have really learned to prioritise my own fitness and nutrition and really feel like a whole new person. The best thing about One Coaching is that they helped me to achieve these goals around my lifestyle, not by changing it. I’ve still been on holiday, eaten out regularly and enjoyed the foods I love. Workouts are simple to do at home and fit into my day. Another great perk is the extra support you get from the other amazing women in the group, a fab support group and cheer squad to really keep you motivated. I couldn’t recommend One Coaching more highly!
A must have coaching programme for every 30/40 year old woman - gives you the tools for life
I have been a yo-yo dieter since a teenager and really struggled to lose a lot of weight I put on around pregnancy after having two kids. I’ve tried countless diets and fitness programmes but I’ve not been able to stick to any for more than a few months.
I joined One Coaching in September 2024 and did a few rounds of the group programme Accelerate, which I really enjoyed and managed to lose quite a bit of weight. I really liked the structure of the programme and focus on mindset. I decided to join the 1-1 coaching in March last year as I wanted the accountability and personalised advice and support to reach my goals.
Lily has been my main coach and all of the mindset work and weekly check in calls have been invaluable, it’s like having a nutritionist, life coach and therapist (I’m sure Lily feels like that sometimes!) in my back pocket and you all get the group support from other people in the programme in a WhatsApp group.
The regular group mindset calls are what makes this programme stand out from others, we had some pre Christmas and they really helped get me in the best frame of mind for the festive period which I usually find a struggle. I felt I had a bigger shift on my mindset around how I enjoy that time of year and I still enjoyed some of my usual treats and favourite things but all in moderation, thanks to the tools they set me up with. I didn’t do my usual of writing off the whole of December because ‘I can just start again in January’! I kept tracking and doing workouts to keep myself accountable. And reflecting on it I really did enjoy it just as much as usual if not more as I dont have the guilt around my food choices or how I feel. I’m feeling great that I maintained my weight throughout December but didn’t feel that I had to restrict myself in any huge ways, I still had many of my festive treats and enjoyed the time with my family and friends.
Adam and Lily have given me the tools, support and accountability to achieve all of this, I’m so proud of what I’ve managed in the last year from Acceletate to going into the 1-1 programme. I really would recommend them to everyone (I have already to all my family and friends!).
A Christmas miracle!
Working with Adam and Lily has been amazing! I only started working with them about 10 weeks before Christmas, and the difference has been remarkable!
When I look back over the two weeks off work, I felt the calmest I’ve ever felt (since I two boys). And we’ve done all the same things!
So the one thing that is different is working with Adam and Lily.
Whilst it hasn’t been that long, I honestly really feel like doing the workouts around Christmas, eating well for the run up, not gorging on food but also not worrying about eating over Christmas, plus the Calm By Christmas programme all helped me be much calmer and really enjoy the Christmas holidays better than I have for the last few years!
I signed up to lose a bit of weight, get some muscle tone and feel stronger, and help with the perimenopause. And now I see that it is impacting much more than that. Usually Christmas is a tricky time for me but it all felt much calmer and less anxiety provoking than previous years.
Adam and Lily have worked a Christmas miracle for me after such a short time, I can’t wait to see what else I can do in the new year!
Do it well and do it once!
Working with One Coaching has been truly life-changing!
My year of coaching with Adam at One Coaching was incredible. I’ve lost 35lbs (16kg) total in the programme and, more importantly, gained a whole new mindset around food, fitness, and self-care. The habits I built now feel second nature, and I finally feel confident and in control of my health.
Even after finishing my coaching, I’ve continued to lose weight and see progress thanks to the strong foundations and lessons I learned from Adam and Lily. I do miss the accountability and community that came with being part of the programme, but I still apply everything I learned to keep moving forward.
Adam’s science-based approach, humour, and genuine support, balances so well with Lily's mindset support and regular sessions that feel like therapy! I started this journey to set a better example for my daughter and have ended it feeling strong, empowered, and proud of how far I’ve come. I am now a life changing 50+lbs down in total and am in a place where keeping myself at this weight is not an huge effort, and is just everyday life.
Accelerate
I joined Accelerate in Sept 2025, having followed Adam on instagram for a year or so previously. I had taken on board a lot of the free information he had shared on instagram and had success in losing some weight, but felt I could do with a bit more structure. Joining Accelerate was really helpful - the accountability of the group setting was fantastic and I met some really supportive friends on there which has really helped me stick with the habits that we started after Accelerate finished. I can see how the 1-1 coaching would be really helpful, as Accelerate was just a small insight and taster of the coaching that Adam and Lily provide, but unfortunately it was not something I could do currently. I'd consider it in the future though!
Who wouldn't want two coaches to help…
Who wouldn't want two coaches to help them have a better life?
Adam and Lily are something special
Adam and Lily are something special. I started with two rounds of accelerate coaching then decided I needed more accountability and a longer approach to my health and fitness.
Through the 1:2:1 programme I’ve not only learnt so much about nutrition and training, but also feel so much more in control of my body. Being mid 40s with two kids the understanding of menopause, nutrition and how to fuel and protect my body for my future health is invaluable. I highly recommend Adam and Lily for anyone who feels a bit out of control, who wants sensible, supportive solutions that are long term.
Stronger, Healthier, Happier
I started working with Adam and Lily through their Accelerate program in January 2025, and then continued straight into 1:1 coaching afterward. Before joining, I had always been fairly active, but I didn’t truly understand how to properly take care of my body or nourish it the right way.
I’m so glad I reached out to Adam — not only am I back to my pre-baby weight, but I also feel the fittest and strongest I’ve ever been! I feel confident in my body, and most importantly, I now understand how to fuel and maintain it for the long term.
What’s even more special is that this journey hasn’t just transformed me — my husband and our two-year-old have also been positively influenced by the healthy habits I’ve built through coaching.
I’m beyond grateful to be part of this amazing community.
I 100% recommend investing in yourself and joining their programs — it’s truly life-changing!
Transformative experience for busy working mum
As a busy working mum of two children under 5 I felt that my main barrier to fitness was time. I was drawn to One Coaching because they said if you can't make changes at your busiest, it won't be sustainable long term, so I felt they had an understanding of the obstacles I'd be managing.
I signed up to their Accelerate course and have had an incredibly positive and transformative 8 weeks. I lost a stone, have more energy (despite still being sleep deprived!), am stronger and feel so much more educated about nutrition and fitness.
I'll be honest, when Adam and Lily first introduced their approach I felt overwhelmed at the prospect of the programme. However with their encouragement, support and phased introduction of the elements, they became second nature and just a natural part of my day.
At no point have I felt like I've been on a diet. I've eaten lots of delicious food, tried new recipes (many of which were provided through the programme), have been out for dinner and drinks regularly and been able to enjoy sweet treats along the way. I had a preconceived idea that tracking food would be restrictive and make me obsessive, but it's done the opposite. I'm enjoying all the foods I love but in a mindful way, so every meal is guilt free.
The structured 30 minute workouts have been achievable in my time starved weeks, as doing them from home has meant I could be super flexible about when I did them...which has been great when managing the curveballs life throws your way!
The focus on mindset really sets the programme apart, as you have the opportunity to drill down into why previous weight loss attempts haven't been successful or lasting, and understand how societal expectations have impacted your progress.
The programme also aligned with another goal we had as a family to reduce our UPF intake. I would say the programme actually speeded up the process, as we were making more mindful choices about our food, so that benefitted the whole family.
I really feel equipped with the tools and knowledge to make lasting change in my life. Weight goals that always felt like a pipedream now feel possible. And I now have new goals, that are not simply about numbers on the scale, but about showing up for myself so I can build my confidence, strength and presence for my boys. Thank you Adam and Lily!
Highly recommended
I have let my weight really slide since Covid to a point it was impacting my health and stopped me doing what I enjoyed. I knew what changes I needed to make... but just kept putting it off and was unable to motivate myself. It was actually my doctor who first recommended One Coaching and I am so glad she did. Adam and Lily gave me the shift in mindset I needed to make the commitment to myself and health, and the tools to make losing weight much easier and even enjoyable. It is built around women with busy lifestyles, so you can plan when you do your work outs, what you eat and manageable steps. Also the time I need to invest is more than repaid with the extra energy I now have at evenings and weekends to do achieve what I need to do, and more importantly what I enjoy doing.
In a word - life changing!
After finding One Coaching on Instagram I followed Adam and Lily for a few months before signing up to their group programme, Accelerate, in September 2024. I did 3 rounds of Accelerate between Sept 2024 and Nov 2025 and lost 11kg, going from a size 14 to a size 10. I loved the programme (all the support, the accountability, the whole approach to weight loss and fitness, and the mindset guidance) so much that I’ve just signed up for the 1-2-1 coaching! I’m the fittest, slimmest, lightest, and most energetic I’ve been for years and I can’t wait to achieve more in the 1-2-1. Adam and Lily have genuinely changed my life and I wouldn’t hesitate to recommend them!
Reply
I did ask questions in both the Q&A section and the group chat — one was answered by you and the others by participants. For a programme costing over £200, I felt this was a little disappointing.
Most of the support seemed to come from the group members rather than directly from you, and when someone asked if we could start a support chat afterwards, the link was deleted and the question wasn’t addressed. Considering the focus on group support as part of the programme, I think participants at least deserved some clarification on that.
If there were signs that someone had become less active, it would have been appreciated if there had been some follow-up or check-in. For the price, it would have been good to have the option to continue group support afterwards, especially since the programme emphasised community rather than one-to-one guidance.
Just to clarify, I did message back, and the only messages I received were stuff already mentioned during the q and a feedbacks session, where you were told to write down goals. It wasn't tailored to the message I'd sent; the message felt impersonal, like speaking to a bot, which put me off.
All the best with your future coaching.

Reply from One Coaching
So much more than just a ‘diet’ it quite simply has been a complete mindset shift for me
Working with Adam has truly been life changing for me. This experience has been more than just a ‘diet’ it quite simply has been a complete mindset shift for me. Since beginning the programme I have not only lost the weight I had been struggling to lose after my second child- I have gained so much strength, knowledge and understanding on how to look after myself and my body and feel a stronger, happier and healthier version of myself. Starting running and seeing it through to an 8k race was not something I ever thought would happen, let alone going into 2025. The support and guidance throughout from Adam has been everything. Thank you!
One Coaching changed my life. Twice!
I have taken part in One Coaching's 1-2-1 coaching and 8 week accelerate programmes respectively after having my two sons. I cannot recommend them enough. They changed my life. Twice!
I had my first child in May 2022, and after 9 months of constant sickness and no movement, I felt physically drained and overwhelmed, all while caring for a newborn. For the next 18 months, I struggled with body image, weakness, and frustration, despite trying to exercise and manage my diet.
Then I met Adam and Lily, and everything shifted. My mindset transformed, followed by my body. I built structure, developed positive habits, and learned to love exercise for the way it made me feel.
After 10 months, I was strong enough to try for a second pregnancy. Though I faced the same sickness and lack of movement, I didn't beat myself up this time and focused on what I could control.
At 7 12 weeks postpartum I started the Accelerate programmer heavier than before but more motivated than ever to reclaim my pre-pregnancy self with a positive mindset and strong community support.
Three weeks in I am 3kg down, losing inches, have increased energy and zest for life. The positive changes are endless and only just getting started
I’m excited to continue this journey with Adam and Lily and grow into the best version of myself as a person and a mother.
Adam was brilliant at 121 coaching…
Adam was brilliant at 121 coaching really informative and gave great feedback he helped me to loose 10 kilos which was fab but more than that it was the mind set change
Life changing!
I joined One Coaching as busy working mum of three who had completely neglected herself for far too long. I took part in Accelerate course and also worked with Adam and Lily 1:1 and I honestly can't recommend both enough!
Adam and Lily have quite literally changed my life for the better. I overcame my gym anxiety, learned how to prioritise myself again. I even had to buy new clothes because my old pre kids 'tight' ones became baggy!
Most importantly, I finally learned to love my body again and my mental health improved massively. For that, I'll be forever grateful to Adam and Lily.
I also discovered a genuine interest in nutrition, and I never once felt restricted with food (which is saying something, because I love food!). The old saying "you can't pour from an empty cup" has never felt more true, and Adam and Lily really helped me refill mine.
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