5-OH-indoleacetic acid (Urine spontaneous)

Dietary precautions: Do not consume foods high in serotonine for at least 24 hours prior to sampling. These include: Pineapples, aubergines, avocados, bananas, capsaicin-containing foods (peppers, peperoncini, chili, pepper, tabasco), currants, coffee, kiwi, melons, mirabelles, nicotine, nuts, plums, chocolate, black tea, gooseberries, tomatoes, vanilla-containing foodstuffs, prune | Limitation as a mandatory service: Only when carcinoid tumors are suspected and monitored.