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New in Ireland · Only at Auralia

Feel full sooner.
A new way to
lose weight.

Meet MagDI™. A keyhole weight-loss procedure that uses two small magnets to create a shortcut in your gut—so smaller meals can feel like enough.

A less invasive way to make the bypass connection.
No cutting or staples at the bowel join.

Speak with Dr Loy, or talk to our team first.
Both free. Neither commits you to treatment.

Dr John Loy

Dr John LoyAlmost 3,000 bariatric procedures.
Specialist care and aftercare in Ireland.

A small connection.
A different future.
First MagDI magnet Second MagDI magnet

The magnets do their job,
then leave naturally.

Two small magnetsNo permanent magnets
Trustpilot

4.8 / 5461 reviews

4.7 / 5 Google584 reviews across 3 locations

WhatClinic Service Award 2025

Recognised for
patient service

Why the magnets matter

Less hunger.
More room for life.

When a smaller meal feels like enough, weight loss can feel less like a daily battle. Here’s the idea behind MagDI.

  1. Two sections of the gut brought together by the magnets
    01

    A shortcut forms.

    Two magnets hold two parts of your gut together. Your body heals a new opening between them.

  2. Some food follows the new shorter route through the gut
    02

    Smaller meals can satisfy.

    Some food takes the shortcut. It reaches the lower gut sooner, helping change the signals that control hunger and fullness.

  3. The magnets pass naturally after the new connection forms
    03

    The magnets leave.

    Once the connection has formed, they pass naturally. The new route stays. The magnets don’t.

Beyond the scales

Keeping up on a walk. Joining in with the children. Feeling more comfortable in your clothes. What would you like to get back to?

Your next step, your choice

Get answers.
Keep your options open.

You don’t need to decide on surgery today. Choose the conversation that feels right for you.

01

Time with Dr Loy himself

A free assessment of your options, expected results and recovery. Online or in Dublin.

02

Or, talk it through first

Ask our bariatric team about the procedure, time off, cost and next steps. No surgeon appointment needed.

A clear next step. No pressure to take it.

Free · No obligation

Your free surgeon assessment

Find out what MagDI could mean for you, with Dr John Loy.

Our coordinator will call, usually within one working day, to arrange your assessment.

Your details stay private.

More than another diet

A different approach.
A real reason to ask.

MagDI changes how food moves through your gut. And it creates that change in a different way.

Compared with dieting alone

Work with your hunger.

A change in the gut can help change hunger and fullness—not simply ask you to keep eating less through willpower.

An alternative to explore

A procedure, not repeat doses.

MagDI creates a lasting new route for food. Ask whether it could be an alternative to ongoing weight-loss injections for you.

Compared with a conventional bypass join

Magnets instead of staples.

Your body forms the connection without the bowel being cut or stapled at that join. A less invasive way to create the shortcut.

“Minimally invasive, meaning that there’s less pain, faster recovery.”

Professor Michel Gagner · Pioneer of MagDI
Usually one nightin hospital for MagDI on its own
No permanent magnetsthey pass once the connection forms
Benefits beyond weightcan improve type 2 diabetes control

MagDI may be used alone, with a sleeve, or after previous surgery. The procedure is performed under general anaesthesia. Your plan determines your results and recovery.

Wondering what it could do for you?

A little reassurance

Interested.
And a little nervous?

You can ask questions before you make any decision.

“Will the magnets stay inside?”

No. They pass naturally after the connection forms. Your team checks they have gone.

“How long until I’m back to life?”

Most patients return to desk work in one to two weeks. We’ll explain the recovery for your particular plan.

“What if I need it reversed?”

The new connection can be closed with another operation if needed. A sleeve, if included, cannot be reversed.

Dr John Loy with Professor Michel Gagner at Auralia
Dr John Loy & Prof Michel Gagner

Expertise close to home

Your story first.
Then your options.

Dr John Loy has performed almost 3,000 bariatric procedures. He brought MagDI to Auralia with Professor Michel Gagner, the procedure’s pioneer.

Your free assessment is time with the surgeon himself. To be heard. To understand your options. To find a way forward.

★★★★★Trustpilot
“Meeting Dr Loy to discuss the best surgery for me, I felt it was the first time in my life I was genuinely being listened to and not just blamed or judged for being overweight.”
Sarah K.April 2026
★★★★★Trustpilot
“The team hand hold you throughout, follow up calls, check ins, and as Dr Loy said on the day of leaving after the Op, our care continues for months following the Op, which was comforting when you are at home afterwards.”
Niall S.September 2025

New procedure.
Experienced hands.

At Auralia, Ireland’s first internationally accredited private hospital. Your surgeon, dietitian and follow-up are here in Ireland.

Since 2001Caring for patients in Ireland
40,000+Auralia patients
3 clinicsOne experienced Irish team
Accredited hospitalCHKS accreditation
Quality managementISO 9001
Featured inThe Irish Times

Something can change with a conversation

You’ve thought about it.
Now get your own answers.

1

Leave your details. Choose the conversation you want.

2

We call you. Usually within one working day.

3

You choose what’s next. Get answers or arrange your free surgeon assessment.

Free. Private. No obligation to take it further.

Your next step, made simpler

Start where you are.

Question 1 of 3

This helps you choose a next step. Medical suitability is assessed by the clinical team.

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Private by design.

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