Nutrigenomics: Unlock Your Body's Unique Blueprint

How Nutrigenomics Personalises Nutrition for Longevity

A partner thrives on high-protein meals while you feel sluggish. A friend cuts out carbs and has endless energy; you try it and feel flat. Most people have followed a "perfect" diet plan and come out of it tired, bloated or uninspired.

Diet plans work differently for different people, and much of that difference comes down to your DNA.

At Expand Health, our lead nutritionist and dietician, Maryke Gallagher, uses genetic testing to show clients how their genes influence digestion, nutrient absorption, inflammation, and overall health. The result is a personalised nutrition protocol designed to support energy, gut function, and longevity.

What is Nutrigenomics?

Nutrigenomics is the science of how your genes interact with nutrition. Your DNA determines how you metabolise nutrients, how you respond to certain foods, and even how your gut microbiome behaves.

Every individual carries small genetic variations, known as SNPs (single nucleotide polymorphisms). These "spelling differences" in your DNA can influence how well your body:

• Breaks down caffeine (wired or sleepless after coffee?)
• Converts beta-carotene into Vitamin A (vital for vision and immunity)
• Processes fats, proteins, and carbohydrates
• Handles detoxification and antioxidant activity
• Absorbs and utilises key vitamins like folate or B12

This is why two people can eat the same meal and feel completely different afterwards. Identifying these genetic patterns takes the guesswork out of nutrition.

Why Genetics Matter for Nutrition and Longevity

Healthy ageing comes down to how well your cells function. Nutrigenomics allows us to identify where your body may need extra nutritional support to prevent fatigue, inflammation, and disease.

For example:

• Certain MTHFR gene variants reduce the ability to convert folate into its active form, leaving you vulnerable to fatigue, mood issues, and poor detox, even if your diet is rich in folate.
• Variants affecting antioxidant activity can accelerate cellular ageing, making targeted nutrients like glutathione or vitamin C essential.
• Genes linked to inflammation can influence your risk of conditions like cardiovascular disease or autoimmune disorders.

With your DNA profile in hand, we can aim nutritional support where your biology needs it, for energy, immune function, and longevity.

Gut Health: Where Genetics and Nutrition Meet

Gut health is at the centre of wellbeing. Your ability to absorb nutrients, regulate inflammation, and balance immunity all depend on the health of your gut microbiome.

Maryke uses DNAGut by DNAlysis, a genetic test that evaluates how your genes affect digestion, nutrient metabolism, and microbial diversity. This test reveals whether you're more prone to:

• Inflammation triggered by certain foods
• Poor fibre metabolism and constipation
• Sensitivity to gluten, lactose, or other compounds
• Reduced ability to maintain a healthy microbiome balance

With this insight, Maryke is able to create a personalised gut health plan, from nutrition and supplementation to lifestyle adjustments that can restore balance and improve everything from digestion to mental clarity.

Beyond Food: Integrative Longevity Support

Testing is the start. Once we understand your genetic profile, we work as a team, combining expertise in nutrition, integrative medicine, and holistic healthcare, and we add therapies where they support the plan:

• Personalised IV Therapy delivers key nutrients (like glutathione, B vitamins, and minerals) directly into the bloodstream for maximum absorption.
• Hyperbaric Oxygen Therapy (HBOT) improves mitochondrial energy production and helps the body utilise nutrients more effectively.
• PEMF Therapy stimulates circulation and cell communication for better nutrient delivery.
• Holistic practitioner support ensures that lifestyle strategies like stress reduction, sleep optimisation, and detox protocols are aligned with your genetic needs.

The nutrition plan that comes out of this covers food, therapies and lifestyle together, tailored to your biology and built for the long term.

Nutrigenomics and the Future of Longevity

Research continues to link genetics, nutrition, and ageing:

• Studies link genetic variations in antioxidant pathways to accelerated cellular ageing and oxidative stress (Frontiers in Genetics, 2020).
• Telomere length, a marker of longevity, is influenced by nutrient-gene interactions, with diets rich in omega-3s and antioxidants slowing telomere shortening (Nutrients, 2021).
• Personalised nutrition based on genetics has been shown to improve weight management, metabolic health, and long-term adherence compared to standard diets (Nutrients, 2019).

Longevity medicine is moving towards strategies built on your own genetic code.

Your Next Step

If diet plans keep failing you, or you want a deeper look at your health from the inside out, nutrigenomic testing fills the gap.

With Maryke Gallagher's expertise, you'll gain:

• Clarity on how your body responds to food
• A personalised nutrition and lifestyle protocol
• Ongoing support as you put the plan into practice
• Access to Expand Health's integrative therapies

Book a consultation

You have carried these gene variants your whole life. Testing shows what they mean in practice.

Book a Nutrigenomics Consultation with Maryke Gallagher at Expand Health in Cape Town, the starting point for personalised nutrition and better gut health.