Compositions for protection against SVFS syndromes are composed of a flavonoid compound of the basic structures 2-phenyl-4H-1-benzopyran or 2-phenyl-4-keto-1-benzopyran or glycosides thereof, an inventive olive kernel extract and a non-bovine sulfated proteoglycan, and, optionally, one or more of bitter willow extract, D-glucosamine sulfate and serotonin inhibitor.