The grocery store is embroiled in a sex war, and the stakes are high. General Mills and Quaker are among the increasing numbers of food manufactures waking up to the profits of wooing women, and marketing gurus tell us catering for the fairer sex is an essential survival tactic in today's retail sector. With woman-friendly nutrients galore and no small amount of pink packaging, Clare Harman takes a look at the trend of female foodstuffs.