Does this increase metabolism?

hi, im recovering anorexia and im trying to boost my metabolism, i have increased my calories, and the doctors wont let me exercise anymore. Does metabolife extreme energy help boost metabolism? i DO NOT want to lose any weight, in fact, im trying to gain a little. But my metabolism is screwy. . .will this help? anyone know? Also, does anyone know if chromium or biotin work? thanks in advance!