► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Lex’s Robert Armstrong explains why US food stocks have proved a good defensive investment during major market volatility, and looks at how the biggest of all the US food groups, Kraft Heinz, has gained much higher operating margins than its rivals.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
