Table 3.

Comparison of levels of phytosterols in dietary supplements between different studies.

Phytosterols Percentage of Sterol in Total Extract % (w/w)
β-Sitosterol	Stigmasterol	Campesterol	Total Sterols	References
0.030–0.200	0.004–0.044	0.009–0.062	0.055–0.308	[117]
0.249–0.271	0.081–0.166	0.057–0.144	0.420–0.585	[118]
0.141–0.388	0.011–0.136	0.038–0.155	NR	[119]
0.010–3.255	0.001–1.975	0.003–2.228	0.015–7.511	[120]
0.001–0.276	0.008–0.104	0.022–0.117	NR	[121]
0.1	NR	NR	0.2	EU/USP monograph [114,115]
0.041	0.004	0.010	NR	SRM 3250 [39]
0.164	0.022	0.050	NR	SRM 3251 [39]

NR—not reported.