Do you have intestinal complaints, change of taste, often nauseous? Medications can have side effects. There is also an influence of food on medicines and vice versa.
The influence of grapefruit on simvastatin is well known. The effect is amplified 1500 x and can cause serious complaints.
But many more food and medication influence each other. This can cause complaints and unwanted operation. Or the effect of your medicines becomes less.
The nutrition and medication training examines whether and to what extent there can be an influence, the side effects and your complaints.
As a dietician I look at the diet and adjust it if necessary.