Shown to reduce LDL ("bad") cholesterol by inhibiting its absorption in the gut.

Ras, R. T., et al. (2014). "Consumption of plant sterols
lowers LDL cholesterol: A meta-analysis of randomized trials." The Journal of Nutrition, 144(5), 673-681.

Berges, R. R., et al. (2000). "Randomized,
placebo-controlled, double-blind clinical trial of beta-sitosterol in patients with benign prostatic hyperplasia." The Lancet, 345(8964), 1529-1532.

May also support prostate health by reducing symptoms of benign prostatic hyperplasia (BPH).