Nutritional genomics: how your genes shape what you eat
Each person responds differently to the same food. Nutritional genomics helps explain why, and fine-tunes recommendations for your body. As a physician trained as an Expert in Nutritional Genomics, I'll explain what it really is and what it isn't, without overblown promises.
What is nutritional genomics?
It's the field that studies the relationship between your genes and nutrition. It includes nutrigenomics (how foods influence the expression of your genes) and nutrigenetics (how your genetic variants influence the way you metabolize certain nutrients). In practice, it aims to move from general recommendations to a more personalized approach, also known as precision nutrition.
How do genes shape what you eat?
Small variations in your DNA can affect things like how you tolerate lactose or caffeine, how you metabolize fats, your predisposition to certain deficiencies (folate or vitamin D, for example) or your salt sensitivity. That doesn't seal your fate: genes propose, but your habits, your environment and your diet play a huge role.
Who can it help?
- People who feel they've "tried everything" and don't get results with generic plans.
- Those with a family history of metabolic or cardiovascular disease, or excess weight.
- Those who want to fine-tune their training or body-composition plan with more data.
- Health-curious people who prefer evidence-based decisions over trends.
What nutritional genomics is NOT
It's not a crystal ball, and it doesn't replace a good medical history. A genetic test doesn't "diagnose" on its own or justify extreme diets. Genetic information adds value when a health professional interprets it and combines it with your labs, your symptoms and your lifestyle. As with everything I do, the idea isn't to ban, but to reach agreements with reasoning.
Would you like a personalized assessment? Let's talk about your case, with science and empathy.
💬 Book on WhatsAppFrequently asked questions
Does nutritional genomics help with weight loss?
It can help personalize your plan, but it's not a magic diet. Losing weight still depends on sustainable habits; genetics only helps fine-tune the recommendations.
Do I need a genetic test to improve my diet?
No. Most people improve a lot with well-guided changes. A test can add extra data in selected cases, interpreted by a health professional.
Are nutrigenomics and nutrigenetics the same?
They're complementary: nutrigenomics studies how foods influence your genes, and nutrigenetics how your genes influence the way you process nutrients.
This article is informational and does not replace a consultation. To assess your case, book a clinical nutrition consultation.
