D-Tagatose a rare natural hexoketose is an isomer of d-galactose. D-Tagatose occurs naturally in Sterculia setigera gum and it is also found in small quantities in various foods such as sterilized and powdered cow's milk hot cocoa and a variety of cheeses yogurts and other dairy products.

Lignoceric Acid is a 24-carbon saturated (24:0) fatty acid and a by-product of lignin production, which is synthesized in the developing brain.

1-Stearoyl-2-arachidonoyl-sn-glycero-3-phosphocholine is an endogenous metabolite.