Table 1.

Ingredients of nigella sativa seed.

ingredients	percentage	reference
carbohydrates	25%–40%	(6, 7)
fixed oil (inoleic acid, palmitic acid)	22%–38%
amino acids (cysteine, methionine, glutamic acid, aspartic acid, arginine)	21%–31%
minerals (iron, copper, zinc, phosphorus, calcium)	3.7%–7%
vitamins	1%–4%
volatile oil (thymoquinone)	0.40%–0.45%
saponins	0.01%
alkaloids	0.01%
others (terpenoids, p-isocyanate, limonene, thiamine, niacin, folic acid)	3%-4%