BenaGene 500mg contains high dose pure oxaloacetate with no additives, no fillers and no colours. Oxaloacetate (OA) is a substance used to generate energy in the body. OA promotes the expression of genes that favor youthful, healthy cells. Side effects reported include an increase in lifespan, reduction in sugar cravings, improved energy, improved sleep, reduction in constipation, reduction in the ability to create and store fat. Blocks glucose and glutamine metabolism in cancer cells.