'Vitamin A' was a German programme of deception measures by Generalfeldmarschall Maximilian Reichsfreiherr von Weichs’s 2^nd Army, holding the western face of the Kursk salient for Generalfeldmarschall Günther von Kluge’s Heeresgruppe 'Mitte', to suggest preparations for a major offensive (late March/July 1943).

The plan was intended to distract the attention of the Soviet high command from the northern and southern shoulders of the salient, where Heeresgruppe 'Mitte' and Generalfeldmarschall Erich von Manstein’s Heeresgruppe 'Süd' were preparing to launch 'Zitadelle'.