Saffron Overdose Symptoms and Effects

 

Saffron is safe in the small amounts used in cooking, but consuming it in very large quantities can be harmful. Reported saffron overdose symptoms include vomiting, bleeding from the nose, eyelids and lips, dizziness, drowsiness, and jaundice. Clinical safety research indicates that saffron doses used in studies — generally up to about 1.5 grams per day — have not been associated with serious adverse effects, while doses above roughly 5 grams can cause toxic effects, and doses above 20 grams have been linked to severe or potentially fatal outcomes (Schmidt M, Betti G, Hensel A. Wiener Medizinische Wochenschrift. 2007;157(13-14):315-319, PMID: 17704979; Hasheminasab FS et al. Health Science Reports. 2026, PMID: 42057871). This information is general and is not a substitute for personalized medical advice — consult a healthcare provider before using saffron therapeutically or in concentrated amounts.

Saffron threads, illustrating the effects of a saffron overdose

The effects of an overdose of saffron

What Causes Saffron Toxicity?

Saffron‘s toxicity in large quantities is generally attributed to a compound called safranal. Research conducted at the Faculty of Pharmacy in Tehran, Iran found that Iranian saffron contains a lower percentage of safranal than saffron grown elsewhere in the world — one of the key differences, and advantages, of Iranian saffron compared to saffron grown outside Iran.