Great British Bake Off judge Prue Leith says people must stop being so squeamish about eating bugs.
The chef, 79, says crickets and mealworms will soon be part of our more environmentally friendly diet.
She wrote in the Telegraph: “We are not going to be able to afford our cultural prejudices.
“To feed the world, we need to find alternatives. Farming bugs requires less land and water than animal farming and produces far less ammonia. It is also cheaper.”
Insects are already eaten in many parts of the world.
Prue recounted how, growing up in South Africa, a maid used to catch and eat hatching termites, and persuaded her to try one.
She recalled: “I spat it out when the fluttering wings in my mouth upset me.”
In 2018 Sainsbury’s became the first UK supermarket to sell insects as food.
Her comments were part of a feature Prue wrote about how food has changed in the last decade.
She said there has been a “truly astonishing rise in our interest in food” in part thanks to the Great British Bake Off, but also the likes of obsessions with things like superfoods, veganism and online cookery courses.
Prue thinks as well as insects there will be a further move away from meat entirely in the next decade.
She added: “That both vegetarianism and veganism is rising is a good thing for the planet, for our health, and for our pockets.
“Veg is much cheaper, calorie for calorie, than meat or fish. When I introduced a vegetarian menu at Leith’s restaurant in the Eighties, I had a real battle with the kitchen, who thought veggies should be shown the door.
“But when they realised their bonuses would rise as we made more money on the meat-free dishes, they were converted.
“I’m sure we’ll see more of both Vs in the next 10 years.”