Disclosed are compounds of formula II, wherein: R is selected from alkylcarbonyl, or alkoxycarbonyl, wherein any alkyl is optionally substituted with aryl, amino, alkoxycarbonylamino, mono-alkyl-amino, di-alkyl-amino, N-alkyl, N-alkoxycarbonyl-amino, or a carboxylic acid residue (-COOH), or any combination thereof. The compounds are used in foodstuffs, food supplements, beverages or medicaments for use in the treatment of cognitive dysfunction, non-cognitive neurodegeneration, non-cognitive neuromuscular degeneration, and receptor loss.