Heinz has warned on Q2 profits, due to high supply chain costs and weakness in foodservice. The slowing economy has dampened Heinz' growth yet again. This time, it has been forced to inform investors that Q2 earnings will be 59-60 cents a share, rather than the 64-66 cents expected. While the company expects things to pick up later in the financial year, it may well have to wait for quite a bit longer.