22 Feb 2019 --- Troubled Kraft Heinz saw its shares plummet by almost 20 percent in the hours after trading yesterday, after the US food giant posted quarterly losses, revealed it was being investigated by the US Securities and Exchange Commission (SEC) and wrote down the value of Kraft and Oscar Mayer brands. This comes amid the difficult and challenging environment for the packaged food industry as consumer preference steers further away from traditional products and shift to healthier alternatives.