Scientists sketch out menus of the future

Earlier this year, shoppers in the U.K. faced a shortage of fresh fruit and vegetables, with some of the country’s grocery stores rationing produce like tomatoes, lettuce and peppers.

The reasons behind the scarcity of ingredients crucial to a tasty salad were complicated and varied, ranging from high energy prices to adverse weather conditions in supplier countries.  

While the shortage has more or less abated, it did highlight the fragile nature of our food system and the huge importance of food security.

In 2022, a major report from the United Nations showed the scale of the problem.

“Between 702 and 828 million people were affected by hunger in 2021,” The State of Food Security and Nutrition in the World report said.

The U.N.’s report flagged the “major drivers of food insecurity and malnutrition: conflict, climate extremes and economic shocks, combined with growing inequalities.”

With concerns about the effects of climate change on the agriculture sector mounting, what we grow and eat could be on the cusp of a significant shift.

Crops unfamiliar to many of us could have a crucial role to play in the years ahead. In June 2022, scientists at the Royal Botanic Gardens, Kew, listed several sources of food that could play a big role in future diets.

They include seaweed; cacti like the prickly pear; a type of wild coffee able to cope with far warmer temperatures than Arabica coffee; and enset, also known as the false banana.

“Enset is a relative of the banana,” James Borrell, research leader in Trait Diversity and Function at RBG Kew, told CNBC.

“But whereas a banana is from Southeast Asia and you eat the fruit, enset is from Africa and has been domesticated — and is only cultivated — in Ethiopia,” he added.

“You actually eat the whole trunk, or pseudo stem, and the underground corm.”

“Something like 15 plants could feed a person for a year, so it’s … very large, and it’s very productive.”

When it comes to food security, the potential of enset — which is also referred to as “the tree against hunger” — appears to be considerable.

Borrell told CNBC that it possesses a combination of traits and characteristics “very unusual in crops.”

“Firstly, it’s perennial, and so it keeps growing each year if you don’t harvest it,” he said.

A fruit tree may also be perennial, he noted, “but it only produces its fruit at a certain time of year — so you either need to consume it then or you need to store it.”

With enset, however, “you eat the whole thing … so the fact that it gets larger each year, you can simply harvest it when you need it.”