Diets have an expiry date, while good habits last for a lifetime.

Evidence-based nutrition and lifestyle coaching for adults on a weight-loss medication journey — built around your body, your habits, and what comes next.

Healthy food

What Makes ME Different?

Registered Nutritionist in New Zealand.

Nutrition Coaching and mentoring

By a registered Nutritionist (Nutrition Society of NZ).

Lifestyle habit changes

Food, exercise and other pieces that complete the puzzle for a healthier version of you

Built Around Medication, Not Against It

Adapted for appetite changes, muscle loss risk, and what happens when you taper or stop

Real Food, Built to Last

Habits that hold once the medication stops doing the heavy lifting, no shakes, powders, or rules you'll drop the day the prescription ends

Get to know Martin Villanueva.

I'm a Registered Dietitian (Argentina), Registered Nutritionist in NZ, Certified Personal Trainer and Health Coach.

A big part of my work nowadays is helping adults who are using (or coming off) weight-loss medication build the habits, strength, and relationship with food that outlast the prescription.

Martin Villanueva
Nutrition Session

Weight loss medications are very powerful and effective, but they're not meant to work alone. There are risks associated with muscle loss and reduced bone density — especially for women over 50. Appetite suppression can also affect protein intake, vitamins, and minerals from food, which compounds those risks over time

My approach is practical, not clinical: Small, sustainable changes rather than rigid rules, with a close eye on protecting the muscle, energy, and independence that matter most at this stage of life.

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confident Customers

Don't take our word for it. See what clients are saying about me.

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“Highly recommended! I had a great experience, feeling comfortable at all time. We were talking about alternatives to improve the way of feeding, how to build a protein and health dish so that get results at gym. I also got an anthropometry which I found pretty useful to keep getting better! Very professional Martin, thank you!”
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“Great guy and very helpful with what I wanted out of seeing a nutritionist. Listened to who I am and what my life is like, so we worked with that implementing small manageable changes instead of unachievable ones. You can see he puts a lot of effort in, and you come away with a lot of information.”
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“I super recommend Martin! I started a vegan diet and he was very very helpful. He first asked about my daily habits and meals so he could bring out a diet that made sense for me. He was also very warm every time I reached out for some questions providing me professional answers. Don´t hesitate to contact him!”
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“Martin knows where he's talking about! Gives a lot of advice, answers all your questions and would def recommend him if you want to lose some weight and change your eating patterns!”
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“After many other professionals I met Martin, he helped me understand how important food is and how the body needs us to take care of it. Approachable, respectful and straight to the point. Thanks man!”
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“Martin has been a fantastic nutritionist for us! He took his time to get to know us, was clear and gave really fast feedback. Would 100% recommend!”

What I Do?

How can I help to meet your health needs.

Creating accountability, sharing your concerns and frustrations with someone who can actually help you in a non-judgmental space

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Nutritional Coaching

I work specifically with adults 50+ who are using or finishing a course of weight-loss medication. Together we focus on what the medication doesn't do on its own — protecting your muscle and bone health, making sure your nutrition keeps up with a smaller appetite, and building habits that are still working for you long after the prescription ends.

How I work

Coaching runs as weekly 30-minute 1:1 sessions over a 3-month program, adjusting as your appetite and medication needs change along the way. Each week we focus on building an action plan that you can sustain over time. It's about small achievable goals, not changing everything from one day to the other.
No lock-in contracts, so you're free to pause or stop at any point.

What we focus on together

Every eating pattern is different to everyone, so we stay away from rigid meal plans / diets. My starting point is the way you eat, and from there start tweaking few things at a time so we make sure you can adhere to the changes. My goal is always medium - long term solutions, not fast 'magic' interventions
“Diets have an expiry date, good habits last for a lifetime”

Getting Started

It starts with a free intro call, so we can talk through where you're at, what you're hoping to get out of the program, and whether we're the right fit before anything is booked in.

At the end of the Program

By the end of the program, the goal is that you're not relying on me to keep things going. You've got habits, meals, and a way of eating that holds on their own. If you want to keep going, we continue month to month

about me

We make your spending stress-free for you to have the perfect control.

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THE Pricing

Investment in your health. Pricing plans.

$289 / month

Weekly sessions where we focus on small achievable goals each week.
You can also pay upfront for the 3-months program and get 10% discount

What's included

- Weekly coaching sessions
- Action plans for every session (whenever possible)
- Habit Tracker
- Support material
- Recipes
- Meal plan
- Training / exercise program
- Ongoing support through email / SMS in between sessions

What type of service do you offer?

Habit-based nutrition and lifestyle coaching, focused on creating sustainable changes rather than strict plans. We work together every week to build practical strategies that fit your lifestyle, helping you improve your nutrition and exercise, consistency, and long-term results.

How do I know this is for me?

This is for you if you're ready to make changes, to take action but unsure where to start, if you're willing to step out of your comfort zone (even a small step). This is not for you if you're not ready to change, expecting magical solutions, only a diet to follow, or a meal plan based on powders and pills

Do I need to follow a strict diet plan?

No — the focus is on flexibility and sustainability. Instead of rigid meal plans, I guide you to make better choices, understand your nutrition, and build habits you can maintain long term.

How long will it take to see results?

This depends on your starting point and consistency, but most people begin to notice changes within the first few weeks. The goal is to build habits that lead to steady, sustainable progress over time.

How long should I go for?

Can I get to know you first before I commit?

It depends on how much support you’d like along the way. If you choose the 3-month program but, halfway through you feel confident continuing on your own, there’s no long-term contract. You can cancel your membership at any time, simply by letting us know before the start of the following month.

Absolutely! And I encourage that. Before starting the coaching program, I offer a 15-minutes free call where we can check if you we're a good match. We can also discuss about your goals and to make sure I'm the right person to help you

Do I need to be taking weight loss medication to start the program?

Not necessarily. I work with a mix of patients using and not using weight loss medication. The approach will be different and personalized to each patient.

get in touch

Ready to start your journey towards better nutrition and improved well-being?

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