In 2013, Nigella Lawson was accused of plagiarizing recipes from other chefs, including Yotam Ottolenghi and Diana Henry.

Marco Pierre White and food critic Jay Rayner engaged in a public feud in 2005, with White criticizing Rayner's reviews and Rayner accusing White of arrogance.

Heston Blumenthal's use of molecular gastronomy, which involves the use of scientific techniques in cooking, has been criticized by some for being overly complex and pretentious.

In 2017, Mario Batali was accused of sexual harassment by multiple women, leading to his resignation from his restaurant group and several television shows.

Gordon Ramsay has been criticized for his comments about women in the kitchen, including saying that they are "not as good as men" and that they should "stay at home and cook for their husbands.

Wolfgang Puck was involved in a legal battle with his former business partner, Barbara Lazaroff, over the ownership of their restaurant group.

In 2011, Jamie Oliver was accused of using ghostwriters for his cookbooks, with some critics claiming that he did not write the books himself.

Thomas Keller has been criticized for his use of foie gras, a controversial ingredient made from the liver of a duck or goose that has been force-fed.

In 2013, Bobby Flay was accused of using performance-enhancing drugs, with some critics claiming that he used steroids to improve his performance in cooking competitions.

Gordon Ramsay has been criticized for his comments about tipping, including saying that it is "optional" and that customers should not feel obligated to tip their servers.

In 2014, Jamie Oliver was accused of using fake ingredients in his dishes, with some critics claiming that he used artificial flavors and colors to make his food look more appealing.

Thomas Keller has been criticized for his use of animal products, with some critics claiming that he is not doing enough to promote sustainable and ethical farming practices.

In 2011, Jamie Oliver was accused of plagiarism, with some critics claiming that he had copied recipes from other chefs without giving them credit.

Gordon Ramsay has been criticized for his comments about food waste, including saying that people who waste food should be "shot".

In 2014, Jamie Oliver was accused of using child labor in his restaurants, with some critics claiming that he was employing underage workers.