How It Works

1Complete your questionnaire to get your tailored plan (In your email)
2Follow the weekly food plans with exercise that suits your level to boost your metabolism
3Stay on track with daily support, advice, and motivation from our expert team

Lose 10lbs (1 size) in 25 days!

What Your Plan Includes

Food Plans

Structured food plans that tell you what to have for breakfast, lunch, dinner and snacks (but with flexibility and built-in choices), delivered by email.

A Flexible Exercise Plan

Your exercise plan can be done from home, the gym or at fitness classes.

Food/Drinks Allowance

Daily treat allowance included plus one social night per week with a built in alcohol allowance (If you drink alcohol).

Weekly Challenges (Optional)

Optional detox/food challenge days (For those who want extra benefits and like a challenge)

Your Own Weight Loss Expert

Working directly under David’s (Dietician/creator of system 10) guidance through a very private Facebook group.

Top Tips

You’ll get the best tips for staying motivated, conquering cravings, emotional eating and resisting temptation.


The incredible support and motivation from others in the private Facebook group should not be underestimated.

A Better Metabolism

Better sleep, better hormone balance and better mood by fixing your metabolism.

The Miracle of Your Metabolism

We individually calculate the right food level to fit with your key metabolism factors (age/height/weight/routine activity level/fitness) meaning your plan suits your exact weight loss needsat this point in time.

Along with delivering you proven food plans and a flexible exercise regime that delivers Real weight loss my team and I will be there to support and motivate you along the way with twice weekly online weigh in’s for accountability, detoxes, food challenges, Q & A’s, important handouts plus mindset posts to keep you focused on achieving 10Ibs (1 size) or possibly more in 25 days  or 20+Ibs (2 sizes) in 8 weeks (over 2 x 4 week online plans*).

You wont get a better combination of a top class weight loss program coupled with daily support and motivation from our experienced team which include myself , I’m a Dietician, fitness trainer & creator of System 10 with years of experience helping people like you improve their lifestyles and achieve great weight loss results.

This program is about about REAL weight loss done the right way (No shortcuts and no gimmicks) giving you a better Metabolism and brilliant weight loss! It will build your energy and health. You will see dramatic changes in your shape.

Losing 10 lbs will look and feel incredible because it is real fat. You will get at stubborn fat. You will find it easier to keep the weight off afterwards.

You will learn how to eat properly, exercise right for weight loss and amazing other things about weight loss.

David Mc Donagh

Dietician & Metabolism Specialist
Creator of the System 10 program

*(The 8wk plan will encompass this special 25-day program and a new 4-week plan starting January 2018. You will complete a new questionnaire on the break between plans so that we can prepare your second 4wk plan. This makes your plans even more accurate which leads to great results and freshens up your motivation along with our new private online support group!)

This NEW 25 day program starts this Monday!

Sign up NOW

Success Stories

Tracey lost 3 stone with System10

After the birth of my second baby I saw an ad for System 10 and it caught my attention. I was eager to shift the dreaded post baby weight and System 10 sounded like a great weight loss programme.

I decided that this was exactly what I needed and went for it. For me it was simple – no gimmicks – just follow the food and exercise plan selected for me – and it worked! I have managed to lose 44lbs* and 18.5% body fat.


Co. Louth

Christina lost 3 stone with System10

I was reading our local newspaper when I spotted a piece all about weight loss & your metabolism. As I read on it all seemed to be written for me. I picked up the phone & joined up. It was the best thing I did.

I started a 10 week home program weighing 12st 7lbs. I felt totally unfit and had absolutely no energy at that time. I lost 2st 7 lbs in the 10 weeks* and in the following weeks went on to lose a further 11lbs. I never felt hungry on the plan and the team was always there to support me and answer my questions.



Tom lost 8 stone with System10

At 26 stone I was unable to exercise without being out of breath and was not able to play any sports. All this was about to change as System 10 put me on a regime of healthy eating and exercise plans which were designed to get my metabolism working correctly burning off my weight ever day and really reducing the shape of my body.

Within a few weeks I was already losing weight and feeling much better. I was never hungry and I always had plenty of regular healthy everyday foods to eat. By the end I had lost close to 8 stone* and I ran a half marathon, something I thought I could never do.

Tom O’Neill


*Disclaimer: Where weight loss is mentioned in our testimonials, please note that these are only indications of possible weight loss. Results are subject to physical, mental and motivational factors.

Choose a Plan Below to Get Started

Savings end @ midnight!

Starts this Monday,
November 20th

Special 25 DAY PLAN

Our most popular plan

Drop 10lbs (1 size) in 4wks!

Just €99

(Save €30)
Normal price: €129




Our best value plan

Drop 20+lbs (2 sizes) in 8wks!

Just €159

(Save €40)
Normal price: €199


Created by Dietician David Mc Donagh

David created the System 10 weight loss plan to fill the urgent needs he had identified from his work in weight loss. The plan focuses on fixing a person’s metabolism and combines it with balanced food and exercise. The outstanding results quickly became apparent especially for people who had tried everything before and failed. His work was featured on RTE’s very popular Nationwide programme and he’s been on TV3 several times discussing the link between Metabolism and weight loss/health.

With extensive studies in metabolism, endocrinology (hormone balance), amino acid therapy, herbalism, emotional eating and psychology (including CBT and NLP), he is in the very unique position of being able to pull together ideas and solutions from a wide variety of fields in solving weight loss and health problems including slow thyroid, osteoporosis, fertility, chronic fatigue, fibromyalgia, high cholesterol, high blood pressure, PCOS and endometriosis.

Perhaps the greatest qualities he can bring you are his attention to detail and determination to treat the cause and not the symptoms. He ruthlessly pursues the ‘why’ behind the ‘why’. He wants to bring you the latest most up-to-date research. He never gives up until he finds a solution and if it doesn’t exist he creates it!

David’s main work now is in supporting System 10 weight loss consultants and clients through his clinics and online courses. He continues to study and do research and runs motivational talks and workshops.