Porphyria is a genetic disorder; dietary modifications have little or no difference in its incidence; however, certain foods have been found to aggravate the symptoms.
- Alcohol should be entirely avoided or restricted to not more than two glasses per day for men and not more than one drink per day for women.
- Food that is high in carbohydrates.
- Crash diets should be strictly avoided. If the patient is obese, weight should be brought down carefully.