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Theresa Loo : Unlocking Personalised Wellness – How DNA Testing Can Transform Your Health, Nutrition & Lifestyle 

 July 28, 2025

By  Therese L'Seow

Hi friends, and welcome to my very first solo episode!

Today we’re diving into a fascinating tool that’s helped me—and many of my clients—unlock a more personalised path to wellness: DNA analysis. Whether you’ve been curious about how it works, wondering if it’s worth it, or feeling overwhelmed by all the science, this episode is for you.

In this episode, you will discover:

  • How DNA analysis and genetic testing for health work
  • The impact of single nucleotide polymorphisms (SNPs) like the COMT and MTHFR genes
  • Why some people need anti-inflammatory nutrition, special supplements, or different diets
  • Strategies in personalised wellnesslifestyle medicine, and precision supplements
  • The importance of accredited DNA labs and genetic privacy
  • Tips on stress regulationsleep optimisation, and habit change for energy and vitality
  • The science behind nutrigenomicschronic disease prevention, and holistic health strategies
  • How technology—like DNA analysis and food tracking apps—can make change effortless
  • My health coaching philosophy: “DNA is not your destiny. It’s information that empowers your next steps!”

What Is DNA Testing & How Does It Work?

Let’s start with the basics.

DNA is like your body’s instruction manual. It’s made up of four chemical letters—A, T, C, and G—and you inherit half from your mum and half from your dad. Together, they create a one-of-a-kind blueprint for your body, including how you metabolise nutrients, handle stress, respond to medications, and even how you sleep.

DNA testing, usually done with a simple cheek swab, looks at tiny variations called SNPs (or single nucleotide polymorphisms). These small tweaks in your code don’t usually cause disease—but they can influence how your body functions.

For example:

  1. Why some people thrive on a high-fat diet while others don’t
  2. Why caffeine makes you jittery or sleepy
  3. Why stress hits harder for some than others
  4. And why certain supplements or medications work better for you than for someone else

From Science to Strategy

In my own practice, I always start with the foundations: anti-inflammatory nutrition, movement, stress regulation, sleep, and mindset.

But for people who want to go deeper, DNA testing offers a roadmap. It helps fine-tune your approach to health—making it more effective and sustainable.

For example, if your genes show you clear neurochemicals quickly, like the COMT gene, you may burn through dopamine faster, leading to burnout. That insight helps us support your brain with the right nutrients—like tyrosine or green tea extract—and adjust your lifestyle accordingly.

Or maybe you’re a slow coffee metaboliser—meaning that morning latte is messing with your sleep, stress, and blood sugar more than you think.

Or perhaps you’ve got a reduced ability to activate folate due to the MTHFR gene, meaning you need active forms of B vitamins and to avoid synthetic folic acid in fortified cereals or breads.

I always remind clients: DNA is not your destiny. It’s information. And when you use that information wisely, it can empower real change.

Pros of DNA Testing

  • Removes guesswork from health decisions
  • Personalises your diet, supplements, and lifestyle
  • Helps you understand why you feel the way you do
  • Provides long-term value—you only need to do it once
  • Supports prevention and performance, not just disease treatment

Cons & Caveats

  • It can be overwhelming—there’s a LOT of data
  • Not all tests are created equal—quality matters
  • Interpretation is key—you need someone who gets it
  • It may not tell you the exact supplement dose you need
  • For some, it can bring up unexpected or emotional discoveries

And yes, there’s a cost—most DNA tests are around $400–$600, which can be a stretch. But if you’re ready for a strategic, long-term approach to your health, I believe it’s a wise investment.

Quality Matters

If you decide to do DNA testing, please choose a provider whose lab meets strict quality standards—like CLIA or ISO 15189 accreditation. This ensures the results are accurate and reliable.

Also, read the privacy policy. Your genetic data is sensitive—make sure it’s protected and won’t be sold or used without your consent.

Action Steps You Can Take

Even if you’re not ready for DNA testing yet, here’s what you can start doing today:

  1. Prioritise real, whole foods with anti-inflammatory benefits
  2. Get consistent, gentle movement
  3. Support your sleep—it’s foundational for pain and mental health
  4. Practice stress regulation—breathwork, meditation, prayer
  5. Be curious about your patterns, not judgmental
  6. Work with a practitioner who listens and personalises your plan

I believe DNA testing can be a game-changer—but only when it’s used as part of a holistic, thoughtful strategy.

If you want to learn more, explore resources, or see how I use DNA in my practice, head over to my website:

Please note:

  • DNA analysis and interpretation has limitations, and results are not diagnostic.
  • Genetic risk is only one aspect of your health, and individual outcomes are influenced by multiple factors, including environment and lifestyle.
  • All advice provided is of a general nature and not a substitute for personalised medical advice from your healthcare provider.

What I offer is a partnership, using health coaching principles to help you interpret your genetic data, understand evidence-based information, and set realistic health goals. My role is to facilitate education and interpretation, ensuring you feel supported and empowered in your health journey.

For balanced insight, here are a few helpful resources:

  • My article on the pros and cons of DNA testing
  • [Podcast with Joe Cohen, Founder of Self-Decode – Part 1and Part 2
  • [Sample Self-Decode DNA report]

PS – Ready to Get Started?
You can order your DNA test with this [link]. and receive 10% off, bringing the total to approximately USD 488 (check exchange rate for your country). Please allow up to 8 weeks for results—so I recommend ordering early to get the process underway.

Thank you for trusting me with your time today. If you found this helpful, share it with someone who needs clarity, hope, and a fresh approach to their health.

Until next time, take care of your body—it’s the only one you’ve got, and it was fearfully and wonderfully made 💛

Author

  • Therese Pharmacist Health Coach Podcaster The Enlightened Pharmacist

    Therese is a consultant pharmacist, evidence-based health and wellness researcher, health coach and self-confessed wellbeing addict. As the host of The Enlightened Pharmacist podcast and webinar series, Therese regularly presents group workshops and seminars, and has a practice working with patients one-to-one who have improved their health outcomes for the long term.
    Having experienced chronic health issues herself, Therese understands that the struggle with maintaining health and wellness is real. She has spent countless hours with patients facing chronic conditions including kidney disease, fatty liver disease, obesity, high blood pressure, stroke, metabolic syndrome, respiratory issues and more.
    Inspired by the success her patients have experienced, Therese has created this workshop to share the effective strategies and shortcuts she uses to help people understand and implement every day, so you can reclaim your health with confidence.
    Therese is on a mission to help 10,000 individuals reclaim their health for the long term - you too can be part of her revolution.

    View all posts

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