Sigma Online Coaching

You’re likely here for one of three reasons (or a combination):

  1. You want to improve your body composition
  2. You want to improve athletic performance
  3. You want to optimize your health

Regardless of your focus, you’ve probably came to Sigma Nutrition because there is a disconnect between your current situation and what you know you’re capable of.

You know that if you could just get some key things in order you’d be able to achieve so much. And you probably know the best way to guarentee that is by having a world-class coach guiding you.

Perhaps you find yourself second-guessing yourself all the time. You start doing something with your nutrition but you’re unsure whether it could be better, so you make some tweaks and changes but have no way of quantifying if they are making things better or worse.

Perhaps you lack structure. You know the principles of good nutrition but you haven’t translated that into an automatic process that you follow. A process that cuts down on decision making and gives you clear daily objectives.

Perhaps you have very specific lofty goals that require attention to detail. And you care about those details being perfect.

What You Can Expect

You can expect to find coaches who really, really care about you. We understand the importance of achieving your goals and the impact that can have on your life. And our central philosophy is one of understanding, empathy and actually caring.

By using a client-centric model, we adopt the coaching service to reflect what each individual needs. We set clear expectations, assess objective and subjective data, and create actionable targets on a weekly basis.

We operate within a framework of evidence-based practice. A deep understanding of the scientific research underpins our decision making. But it’s beyond that where our coaching skills really shine; using experience and empathy to work out solutions for each individual. One phrase we like most is “creative problem solving”.

The Sigma Nutrition coaching team have coached hundreds of men and women to better physiques, improved health and all-time best performances.


How Our Sevice Works

  • Every week you have a formal email check-in with your coach.
  • Each day you will have metrics to track in your Sigma Tracker. The metrics tracked will be dependant on the individual’s needs.
  • Each week you will have some clear objectives, meaning you go into each day knowing exactly what to do.
  • Throughout the week you have email access to your coach to ask any questions you may have.
  • At regular time points along the process you will have a review of progress with your coach. This is a great opportunity to reflect on how much progress you’re making.
  • As needed, Skype or phone calls can be arranged subject to coach availability.

Eligibility Criteria

I want to be completely transparent about a few things, so that neither you or us waste our time and resources. So to be clear, we can only work with people who have the ability to put in a high degree of effort. We invest a lot of time and energy into each client, so to make that worthwhile we can only work with people who can commit to putting in a sustained and dedicated effort. Because of the time/effort we put in, in addition to the excellence of service and ability to get results, this is not a cheap service. If pricing is a primary concern for you, it’s likely our service won’t be the best fit for you.

Before you submit an application to work with us, please ensure you fit the following criteria:

  1. You are not looking for a one-time meal plan. We don’t provide one-time meal plans. We develop deep ongoing relationships with dedicated clients, thus getting the best reults possible.
  2. You are not looking for a low-cost coaching. We provide a truly elite service. We are excellent at what we do. And we price accordingly. If budget is an issue for you then there are likely better solutions out ther for you than our coaching.
  3. You are not looking for medical advice. If you want specific medical advice for a clinical condition, then please consult a specialist. We are not medical professionals.
  4. You can commit to at least eight weeks of coaching. Dipping in to this coaching for a short number of weeks just isn’t going to be use to anyone. You won’t have time to see the real benefits of a coach and we have a reputation of excellent results to protect.
  5. You can commit to your obligations as a Sigma client. Each weekend you are required to submit you check-in on time. You should have any data collected that your coach has requested. Your questions should be thought out and specific. And you should be engaged with the process. If you want to be passive in the process or expect results to be spoon-fed to you, that isn’t going to happen.

Our Coaching Team

Danny Lennon
  • Coaching System Co-ordinator
  • MSc. Nutritional Sciences
  • Instagram: @dannylennon_sigma
  • Email:
Gar Benn
  • Head of Coaching
  • Owner of CityGym training facility
  • Precision Nutrition certified nutrition coach
  • National Academy of Sports Medicine CPT
  • KG Elite Strength & Conditioning level 1 & 2
  • Instagram: @garbenn_cg
  • Email:
Arthur Lynch
  • Powerlifting & strength coach
  • PhD candidate in muscle physiology
  • Drug-free powerlifter
  • Represented Ireland at 2016 and 2017 open IPF World Championships in u-93kg class
  • Best lifts in competition: 262.5 kg squat, 180 kg bench, 307.5 kg deadlift (raw) @ -93 kg BW
  • Instagram: @arthurlynch
  • Email:
Ciaran O’ Regan
  • Nutrition coach at Sigma Nutrition
  • BSc in Sport & Exercise Science
  • S&C Coach
  • Competed at national level in amateur boxing
  • MNU Student
  • Instagram: @ctquarrelsome

The Process

Confirm you meet eligibility criteria

Submit an application via button below

Arrange consultation

Determine if we’re the perfect fit

If yes, set-up payment.

Bask in the glory of the best results of your life

Apply for Coaching

Apply below and if you’re deemed a good fit for coaching with Sigma Nutrition you’ll be contacted to discuss your goals in more detail with a coach.

If we’re all happy, you’ll be offered a coaching spot. In the event our client roster is fully booked, you’ll be placed on a waiting list and contacted when a space is free.


“Having heard so much about Danny, I decided to get his help on evaluating my own nutrition and seeing where improvements could be made. There was also the issue of kidney stones, which had me baffled for a long time and what best nutritional protocols were, which Danny also helped me on.

Over the course of 6 to 8 weeks, my own bodyfat managed to drop approximately 3-4% and I felt much more recovered after my training sessions.

I would have considered it a form of education as opposed to coaching, purely for the reason that Danny really made it a very enjoyable learning experience.

I cannot recommend Danny enough and would encourage everyone to spend time with Danny as it will be of major benefit.”

“Although I know a bit about training and nutrition, I wanted a coach because Im not really objective about myself while dieting. I wanted a Coach who I can trust, gives me guidelines for my nutrition and helps me stay on track (which is in my opinion the most important task). You have to do the work yourself but Gar helped me a lot to stay on track, hit my macros, make adjustmens when needed and gave me refeeds when needed. I dont think the results would be same without him. I hit my goals of losing around 12 kg bodyweight, while maintaining my strength almost completely.”
“I’m an experienced lifter, with about 3 years of lifting under my belt and in recent times had hit a point where I just wasn’t happy with my rate of progress. I reached out to Arthur as I had noticed what his coaching was doing for others on social media. Arthur took me under his wing and in the short few months we have been working together I have smashed through them plateaus, hitting personal bests in all 3 of the powerlifting movements. He is very engaging with his clients with check ups and helps keep me motivated. I couldn’t recommend a better coach!”
“I first contacted Danny because I struggled to maintain an adequate diet to suit my training and work balance.

My body fat went from roughly 13 per cent down to just below 8 per cent in 8 weeks. All of my lifts have surpassed my personal records multiple times. And I became both mentally and physically stronger.

I thought I knew a lot about nutrition. Time to throw my ego away and say that I actually knew nothing.”

“I have been receiving coaching and programming from Arthur for over a year now. He has helped me gain strength and size, as well as improving my technique and knowledge of the sport of powerlifting. His programmes are carefully catered to my needs and abilities. He is also accommodating of any suggestions I have for the programmes. Any questions I have are swiftly and coherently answered. He makes competitions stress free. Attempt selections are as close to perfect as you can get, which gives you confidence and allows to focus completely on your lifts.”

Frequently Asked Questions

When you make a successful application and set up a call with your prospective coach, only then will we discuss coaching fees. The reason for this is simple. It stops you “window shopping” and potentially falling into the trap of settling for a coach based on price. We only want to work with people who choose Sigma Nutrition & Performance because they know we are the best choice for them, will deliver the best service and get them the exact results they want. If you are looking for the cheapest option, or cost is more of a priority than results, then we’re likely not for you.
If you meet the above eligibility criteria then fill out the the application form above on this page. When we receive your application, one of the coaching team will contact you, where we will go through your application and discuss what we feel would be the optimal plan of action for you. If both parties are happy and we have a coaching spot available, you will be offered a spot on the coaching roster, which you can secure by making payment within 48 hours.
We’ve worked with clients all over the world including Ireland, the UK, USA, New Zealand, Canada, Hong Kong, Germany, Sweden, Australia, United Arab Emirates, Spain and Denmark. This client base has spanned various different types of people; from elite level athletes winning world championships to dedicated people who want to get in awesome shape and all the way to people who want help with health complaints like IBS, bloating, poor blood markers, etc.
It’s probably best to start who we DON’T work with. We do not cater for complete beginners or those just trying to get a bit healthier. Others can help you with that, it’s just not what we do. We work with people who are looking to take a science-based approach to superior body composition or performance.

So that means you should know what macronutrients are, are willing to track your intake on My Fitness Pal, already know how to complete the main compound lifts.

We also do specific prep for peaking and making weight for powerlifting meets, MMA fights and other weight-class based sport events

We have the perfect mix of science and experience in our coaching team. We collectively have qualifications spanning MSc. in nutritional sciences, PhD research in muscle physiology, NASM and endless other strength & conditioning and nutrition certs. But on top of that we’ve worked with clients for thousands of hours, encountering almost every type of scenario you can think of. To see details of our coaching team, go here: Sigma Nutrition Coaches.
For those who are not looking for coaching but just have a list of questions you’d like answered or to discuss a specific set of topics, then you can do individual Skype strategy calls with a member of the team. Full details are here: