Table 3.

Subchronic toxicity of Nigella sativa in animal studies

Substance/dose	Animals used	Exposure period	Observation period	Main results	Reference
N. sativa seeds 20 and 100 g/kg, p.o.	7-day-old Hibro broiler chicks	7 weeks	Same 7 weeks	No toxicity	[55]

p.o., per oral.