Food allergies and intolerances
Lactose intolerance, gluten sensitivity, fructose malabsorption, IgE-mediated allergies: each situation calls for a precise workup to remove the real culprits without needlessly impoverishing the diet.
Gabriela Ferent — Qualified dietitian · Affiliated with the CNS
Confirm the diagnosis before excluding any food: no elimination diet should be started without a prior medical workup.
Prior medical workup is essential
Food diary + targeted elimination + reintroduction
Avoid deficiencies and unnecessary elimination
Allergy, intolerance or sensitivity?
IgE-mediated immune reaction, sometimes severe, confirmed by prick tests or specific IgE.
Enzyme deficit (e.g. lactase) or malabsorption (e.g. fructose).
E.g. non-coeliac gluten sensitivity, recognised after excluding coeliac disease and wheat allergy.
Only a doctor can make this diagnosis with the appropriate tests.
How the support works
The first consultation reviews your dietary history, a precise description of your symptoms and any medical tests already carried out. Where helpful, a food-and-symptom diary is set up to document reactions and prepare next steps with your doctor.
Diagnosis remains medical: allergy tests, coeliac serology or breath tests are prescribed and interpreted by your doctor. The practice's role is to turn those conclusions into a concrete, safe and minimally restrictive way of eating.
Setting up elimination without restricting yourself
Once diagnosed, dietetic support targets three axes: identifying hidden sources (labels, restaurants, cross-contact), guaranteeing needs coverage (non-dairy calcium, B12, iodine, fibre) and working on gradual reintroduction where medically appropriate.
- Decode labels and spot hidden allergens
- Alternative sources of calcium, protein, fibre depending on the elimination
- Varied meal plan — restriction must not mean monotony
- Coordination with the allergist or gastroenterologist
This diagram shows the FODMAP protocol, a tool reserved for irritable bowel syndrome and some functional digestive complaints, always under dietetic supervision. It does not apply to food allergies or coeliac disease, and it does not replace medical advice.
What belongs to your physician
Diagnosis, tests and medical treatment remain your doctor's responsibility. Dietetic support adapts to them and, with your agreement, a report is sent to your doctor.
Ready to start your care pathway?
Book an appointment with Gabriela Ferent — three practices in Luxembourg, consultations with possible CNS coverage on prescription, or privately.
Book an appointment