Answer:
A nutritionist, dietitian-nutritionist
Explanation:
The most appropriate person to consult about nutritional information is a nutritionist.
Nutritionists are experts in food, diet and nutrition. They are fully trained with knowledge in biochemistry, bromatology, nutritional therapy, pathology, dietetics and other important areas to understand how the body works and what is the right diet for each person.
Nutritionists are responsible for the nutritional diagnosis and nutritional-dietary treatment needed by patients suffering from obesity, diabetes, malnutrition, kidney disease, etc., as well as can help prevent future problems through food.