Have you ever wondered why a diet that works for one person might not work for you? Or why certain foods make you feel energised while others leave you sluggish? The answer could be in your genes.
Nutrigenomics, the science of how our genes interact with food, is revolutionising the way we approach health and nutrition. By understanding your unique genetic blueprint, you can personalise your diet to support optimal well-being. To illustrate this, here are some real-life case studies demonstrating the impact of nutrigenomics on health.
What is a SNP?
A single nucleotide polymorphism (SNP, pronounced ‘snip’) is a small genetic variation that can influence how your body processes nutrients, detoxifies substances, or responds to stress. SNPs can impact everything from your ability to convert plant-based omega-3s to how efficiently you metabolise carbohydrates. Understanding these variations allows for a more personalised approach to nutrition and health.
Case Study 1: The Plant-Based Dilemma
Sarah, a 35-year-old vegetarian, has been struggling with fatigue and dry skin despite eating a well-balanced plant-based diet. A DNA analysis reveals:
- Omega-3 SNPs: She has difficulty converting plant-based ALA (found in flaxseeds and walnuts) into essential DHA and EPA, leading to deficiencies.
- Vitamin A SNPs: Her body struggles to convert beta-carotene (from carrots and sweet potatoes) into active vitamin A, impacting skin and immune health.
- Vitamin D SNPs: Poor vitamin D receptor function, meaning she may need higher doses to maintain optimal levels.
Solution: Sarah incorporates an algae-based DHA supplement, increases direct sources of vitamin A (fortified foods and supplement), and optimises her vitamin D intake based on blood test results. Within weeks, she notices improved energy and skin health.
Case Study 2: The Weight Management Struggle
James, 42, has been trying to lose weight for years with little success, despite eating a “healthy” diet. His genetic results reveal:
- Carbohydrate Sensitivity SNPs: His body is prone to insulin resistance, meaning a lower-carb approach is better suited for him.
- Fat Metabolism SNPs: He has difficulty processing saturated fats, making Mediterranean-style fats (olive oil, nuts, avocados) a better choice.
- Exercise Response SNPs: His body responds more efficiently to strength training than endurance workouts.
Solution: By reducing processed carbs, switching to healthy fats, and focusing on resistance training, James finally starts seeing consistent weight loss and improved energy.
Case Study 3: Mood, Stress, and Hormones
Emma, 30, has been experiencing mood swings, anxiety, and hormonal imbalances. Her genetic insights highlight:
- Serotonin Transport SNPs: A genetic predisposition to lower serotonin availability, affecting her mood.
- COMT SNPs: Slow breakdown of dopamine and oestrogen, making her more sensitive to stress and PMS.
- Cortisol Regulation SNPs: A heightened stress response, leading to higher baseline cortisol levels.
Solution: Emma supports serotonin production with tryptophan-rich foods (turkey, eggs, nuts), includes magnesium and cruciferous vegetables to aid oestrogen detox, and adopts stress-reducing techniques like mindfulness and breathwork. Her mood stabilises, and she feels more in control of her emotions.
What Can You Do?
You don’t need a DNA test to start optimising your health! Here are some general steps you can take today:
- Eat a variety of whole, nutrient-dense foods tailored to your needs.
- Prioritise healthy fats and avoid processed foods.
- Support detox pathways with cruciferous vegetables and hydration.
- Manage stress with sleep, exercise, and mindfulness practices.
Want to go deeper? A personalised nutrigenomics consultation can help you unlock your genetic potential and create a truly customised nutrition plan.
Ready to take control of your health? Book a free discovery call today!