<unk> s are a sub-group of fatty<unk> s with aliphatic tails of less than six carbons. They include:
Acetic<unk> 
Propionic<unk> 
Isobutyric<unk> 
Butyric<unk> 
Isovaleric<unk> 
Valeric<unk> 
Caproic<unk> 
Lactic<unk> 
Succinic<unk>
Short chain fatty acid
Essential fatty acid
Diol
Polyphenol
Omega-3 fatty acid
Saturated fat
Cholesteryl ester
Diatomic molecule