I am interested to know if the type of carbohydrate assists with recovery and minimizing symptoms during an attack. How much increase in carbohydrates should be recommended to a person during an attack?
Carbohydrate - glucose - is mentioned in quite a few papers, but little detail is given, so I have not included them. However, this paper, available on ResearchGate, has a section on p.3 that is relevant:
Stein, P., Badminton, M., Barth, J., Rees, D., & Stewart, M. F. (2013). Best practice guidelines on clinical management of acute attacks of porphyria and their complications. Annals of Clinical Biochemistry, 50(3), 217-223.