Oyster

Polysaccharide compounds present in oyster mushrooms have exhibited properties that help to boost immunity, maintain cholesterol levels, and decrease the hardening of blood vessels caused by plaque.

Y. Patel, R. Naraian, V.K. Singh, Medicinal properties of Pleurotus species (oyster mushroom): A review. World Journal of Fungal and Plant Biology. 3 (1), 01-12 (2012)

E. Guillamón et al., Edible mushrooms: Role in the prevention of cardiovascular diseases. Fitoterapia81 (7), 715-723 (2010)