Major food manufacturers began to report their first-quarter results last week. Nestle came under scrutiny for its performance in emerging markets. A cautious Danone saw signs of improvement from its European dairy operations, while its infant formula business was buoyant. Elsewhere, we shone the spotlight on the recent rationing of formula in Western markets amid high demand in China, looked at Marks and Spencer's latest European venture and analysed Magnit's move to Russian retail's top spot.