Table 1.

Minerals and protein in African nightshade (per 100 g fresh weight) compared with other commercial vegetables.

	Protein (g)	K (mg)	P (mg)	Ca (mg)	Mg (mg)	Fe (mg)	Cu (mg)	Zn (mg)
S. retroflexum	6	257	36	199	92	7.2	0.16	0.56
S. villosum	4.6			442		12
Spinach	2.86	558	49	99	79	2.71	0.13	0.53
Lettuce	0.9	141	20	18	7	0.41	0.025	0.15
Kale	2.92	348	55	254	33	1.6	0.053	0.39
Mustard green	2.35			118		1.69
Rapini (broccoli raab)	3.17	196	73	108	22	2.14	0.042	0.77
Swiss chard greens	1.8	379	46	51	81	1.8	0.366	0.36

Source: (8).