From that Linus Palding link above...
"Insulin Signaling: The binding of insulin to the insulin receptor (IR) triggers the autophosporylation of several tyrosine residues on the IR. Activation of the IR in this manner stimulates a cascade of protein phosphorylations, resulting in the translocation of glucose transporters (GLUT4) to the cell membrane and increased cellular glucose uptake (3, 33). LA has been found to increase GLUT4 translocation to cell membranes and to increase glucose uptake in cultured adipose (fat) and muscle cells (34, 35). Although LA does not appear to bind to the IR like insulin, it can activate the insulin signaling cascade in cultured cells, possibly by acting as a mild oxidizing agent (3, 33)."
Whether the cost to benefit ratio is worth it.....who knows....most supplements usually aren't