A canal filled with Colorado River water flows past a field of spinach in Imperial Valley, California, U.S., December 5, 2022. REUTERS/Caitlin Ochs 

A field of spinach is irrigated with Colorado River water in Imperial Valley, California, U.S., December 5, 2022. REUTERS/Caitlin Ochs 

A field of spinach is irrigated with Colorado River water in Imperial Valley, California, U.S., December 5, 2022. REUTERS/Caitlin Ochs 

A field of spinach is irrigated with Colorado River water in Imperial Valley, California, U.S., December 5, 2022. REUTERS/Caitlin Ochs 

A worker transports harvested spinach at a farm in Klippoortjie, outside Johannesburg, South Africa, April 25, 2022. REUTERS/Siphiwe Sibeko 

Workers harvest spinach at a farm in Klippoortjie, outside Johannesburg, South Africa, April 25, 2022. REUTERS/Siphiwe Sibeko 

A vegetable seller at shows spinach to a customer at a greengrocery store, in a market, in Buenos Aires, Argentina June 15, 2021. Picture taken June 15, 2021. REUTERS/Agustin Marcarian 

Amanda Cohen, chef and owner of Dirt Candy, making a spinach croquet madame sandwich in New York, U.S., May 19, 2021. Picture taken May 19, 2021. REUTERS/Roselle Chen 

Amanda Cohen, chef and owner of Dirt Candy, shows a spinach croquet madame sandwich in New York, U.S., May 19, 2021. Picture taken May 19, 2021. REUTERS/Roselle Chen 

Workers harvest spinach at a farm amid the spread of the coronavirus disease (COVID-19), in Eikenhof, South Africa May 19, 2020. REUTERS/Siphiwe Sibeko 

Farmers pick their spinach harvest in Las Pilas village amid a nationwide quarantine as El Salvador's government undertakes steadily stricter measures to prevent the spread of the coronavirus disease (COVID-19), in San Ignacio, El Salvador May 13, 2020. REUTERS/Jose Cabezas 

Spinach leaves grow on Carrie Chlebanowski's farm in Alex, Oklahoma, U.S., March 20, 2020. Picture taken March 20, 2020. REUTERS/Nick Oxford 

Carrie Chlebanowski harvests spinach on her farm in Alex, Oklahoma, U.S., March 20, 2020. Picture taken March 20, 2020. REUTERS/Nick Oxford 

Nyani Moloi waters her spinach plants at the back of her house in the Baken Park township near Bethlehem, South Africa, April 16, 2019. Picture taken April 16, 2019. REUTERS/Sumaya Hisham 

People receive spinach from a farmer during a protest outside the Casa Rosada Presidential Palace in Buenos Aires, Argentina February 27, 2019. REUTERS/Agustin Marcarian 

A resident harvests Water Spinach, locally known as KangKong, before Typhoon Mangkhut hits the main island of Luzon, in Muntinlupa, Metro Manila, in Philippines, September 14, 2018. REUTERS/Erik De Castro TPX IMAGES OF THE DAY 

A resident harvests Water Spinach, locally known as KangKong, before Typhoon Mangkhut hits the main island of Luzon, in Muntinlupa, Metro Manila, in Philippines, September 14, 2018. REUTERS/Erik De Castro 

Organic red spinach seedlings sprout from growing towers that are primarily made out of polyvinyl chloride (PVC) pipes at Citiponics' urban farm on the rooftop of a multi-storey carpark in a public housing estate in western Singapore April 17, 2018. Picture taken April 17, 2018. REUTERS/Loriene Perera 

A woman collects water spinach growing at Laguna Lake in Taguig, metro Manila, Philippines February 28, 2018. REUTERS/Dondi Tawatao 

A Hindu holy man, or sadhu, cooks spinach at the premises of Pashupatinath Temple on the eve of Shivaratri festival in Kathmandu, Nepal February 12, 2018. REUTERS/Navesh Chitrakar 

A woman is submerged waist down in a river while collecting water spinach to be sold at a nearby market for $1 per bundle, in Bacoor, Cavite province, South of Manila, Philippines July 13, 2017. REUTERS/Romeo Ranoco 

Spinach is on display at a shop of a food market in Vienna, Austria, April 19, 2016. REUTERS/Leonhard Foeger 

Spinach is on display at a shop of a food market in Vienna, Austria, April 19, 2016. REUTERS/Leonhard Foeger 

A man carries a box with spinach as he walks past a board displaying food prices outside a grocery shop in Johannesburg July 23, 2015. South Africa's Reserve Bank lifted interest rates by 25 basis points to 6.00 percent on Thursday, a decision viewed as a borderline call, with the bank saying it remained in a hiking cycle while upside risks to inflation remained in place. "The committee is concerned that failure to act against these heightened pressures and risks will cause inflation expectations to become entrenched at higher levels," said Governor Lesetja Kganyago. REUTERS/Siphiwe Sibeko

A decorated dish of rice with spinach sauce and egg white is seen at a Hello Kitty-themed Chinese restaurant in Hong Kong, China May 21, 2015. The world's first Chinese-style restaurant dedicated to the Japanese cartoon has been packed out daily despite not officially opening until June 1, 2015. The eatery features some 37 dishes such as dim sum and fried rice, often served in the shape of the girl-cat. Picture taken May 21, 2015. REUTERS/Bobby Yip 

Decorated buns (L) and a dish (R) of steamed rice with spinach sauce and egg white are seen at a Hello Kitty-themed Chinese restaurant in Hong Kong, China May 21, 2015. The world's first Chinese-style restaurant dedicated to the Japanese cartoon has been packed out daily despite not officially opening until June 1, 2015. The eatery features some 37 dishes such as dim sum and fried rice, often served in the shape of the girl-cat. Picture taken May 21, 2015. REUTERS/Bobby Yip 

Chester County Food Bank agricultural director Bill Shick removes a spinach seedling to be planted in one of the gardens on the Springton Manor farm where the program grows produce in suburban Philadelphia, Pennsylvania November 21, 2013. Chester County is among about 20 food banks across the country that have started their own farms to boost healthier eating by the needy. Picture taken November 21. To match Feature USA-THANKSGIVING/FOODBANK REUTERS/Tom Mihalek (UNITED STATES - Tags: SOCIETY POVERTY FOOD AGRICULTURE HEALTH) 

A boy collects water convolvulus (water spinach) in a field outside of Yangon January 17, 2013. REUTERS/Soe Zeya Tun (MYANMAR - Tags: AGRICULTURE SOCIETY) 

Farmers sift dust out of spinach seeds at a field in the outskirts of Faisalabad May 26, 2012. REUTERS/Fayyaz Hussain (PAKISTAN - Tags: AGRICULTURE SOCIETY BUSINESS EMPLOYMENT) 

Students at Munroe Elementary School clean spinach leaves in the school garden in Denver, Colorado May 9, 2012. The students learn to grow and prepare healthy meals in the school's garden club, with some of the food going to the school's lunch program. Colorado has the second fastest growing childhood obesity rate in the nation says non-profit LiveWell Colorado. Groups like Livewell are working to reduce childhood obesity by supporting school gardens, especially in low income areas, to provide learning about healthy food while actually providing nourishment. Studies have shown that children are more likely to try eating fresh fruit and vegetables if they are involved in growing them. Photo taken May 9, 2012. REUTERS/Rick Wilking (UNITED STATES - Tags: HEALTH EDUCATION SOCIETY) 

A man covers himself with a shawl as he walks through a spinach field on a morning at Mastgarh village in the northern Indian state of Punjab December 3, 2011. REUTERS/Ajay Verma (INDIA - Tags: AGRICULTURE FOOD) 

U.S. first lady Michelle Obama plants spinach as she gardens during a community service project at Vhuthilo Community Center in Soweto township, Johannesburg June 22, 2011. REUTERS/Charles Dharapak/Pool (SOUTH AFRICA - Tags: POLITICS) 

Housewives hold cooking oil and spinach as they take part in a rally to protest the building of more nuclear plants in South Korea, in Seoul March 29, 2011. South Korea, the world's fifth largest oil importer and now a major global supplier of nuclear plants, will not abandon its nuclear plans despite the nuclear crisis in Japan, a government minister said on Monday. REUTERS/Jo Yong-Hak (SOUTH KOREA - Tags: CIVIL UNREST ENVIRONMENT HEALTH POLITICS) 

Housewives hold local food products, (L to R) cooking oil, spinach and frozen pollock, as they take part in a rally to protest the building of more nuclear plants in South Korea, in Seoul March 29, 2011. South Korea, the world's fifth largest oil importer and now a major global supplier of nuclear plants, will not abandon its nuclear plans despite the nuclear crisis in Japan, a government minister said on Monday. REUTERS/Jo Yong-Hak (SOUTH KOREAPOLITICS ENVIRONMENT - Tags: CIVIL UNREST ENVIRONMENT HEALTH POLITICS IMAGES OF THE DAY) 

Teruko Saka, 80-year-old farmer, weeds a spinach field in Moriya, Ibaraki prefecture, north of Tokyo, March 20, 2011, nine days after an earthquake and tsunami hit Japan. The Japanese government will decide by Monday on whether to restrict consumption and shipments of food products from the area in the vicinity of a quake-hit nuclear complex after higher-than-normal levels of radiation were found in milk from a farm about 30 km (18 miles) from the plant and spinach grown in neighbouring Ibaraki prefecture. REUTERS/Jo Yong-Hak (JAPAN - Tags: DISASTER ENVIRONMENT HEALTH AGRICULTURE FOOD) 

Teruko Saka, 80-year-old farmer, weeds a spinach field in Moriya, Ibaraki prefecture, north of Tokyo, March 20, 2011, nine days after an earthquake and tsunami hit Japan. The Japanese government will decide by Monday on whether to restrict consumption and shipments of food products from the area in the vicinity of a quake-hit nuclear complex after higher-than-normal levels of radiation were found in milk from a farm about 30 km (18 miles) from the plant and spinach grown in neighbouring Ibaraki prefecture. REUTERS/Jo Yong-Hak (JAPAN - Tags: DISASTER ENVIRONMENT HEALTH AGRICULTURE FOOD IMAGES OF THE DAY) 

Spinach is seen before being harvested at a field in Moriya, Ibaraki prefecture, north of Tokyo, March 20, 2011, nine days after an earthquake and tsunami hit Japan. The Japanese government will decide by Monday on whether to restrict consumption and shipments of food products from the area in the vicinity of a quake-hit nuclear complex after higher-than-normal levels of radiation were found in milk from a farm about 30 km (18 miles) from the plant and spinach grown in neighbouring Ibaraki prefecture. REUTERS/Jo Yong-Hak (JAPAN - Tags: DISASTER ENVIRONMENT HEALTH AGRICULTURE FOOD) 

A man tosses harvested water spinaches grown in the waters of Pasig floodway in Manila April 21, 2010. REUTERS/Cheryl Ravelo (PHILIPPINES - Tags: SOCIETY AGRICULTURE) 

A Haitian woman carries spinach in Port-au-Prince January 25, 2010. The European Union agreed on Monday to send up to 350 paramilitary police to Haiti in response to a U.N. call for help to protect the earthquake relief effort. REUTERS/Eliana Aponte (HAITI - Tags: DISASTER POLITICS FOOD) 

A villager picks up water spinach growing in a polluted pond, which is used as a dumpsite for waste from a palm oil factory, in the Luwu district of Indonesia's South Sulawesi province September 9, 2009. Indonesia's parliament passed a new environment bill on Tuesday giving the Environment Ministry the power to revoke polluters' business licences, which environmentalists said could lead to more effective enforcement. Indonesia's rapid economic growth has been accompanied by widespread pollution of its waterways, soil and air, as well as the destruction of its forests and wildlife, prompting criticism from green groups and the World Bank. REUTERS/Yusuf Ahmad (INDONESIA ENVIRONMENT BUSINESS POLITICS) 

A villager picks up water spinach growing in a polluted pond, which is used as a dumpsite for waste from a palm oil factory, in the Luwu district of Indonesia's South Sulawesi province September 9, 2009. Indonesia's parliament passed a new environment bill on Tuesday giving the Environment Ministry the power to revoke polluters' business licences, which environmentalists said could lead to more effective enforcement. Indonesia's rapid economic growth has been accompanied by widespread pollution of its waterways, soil and air, as well as the destruction of its forests and wildlife, prompting criticism from green groups and the World Bank. REUTERS/Yusuf Ahmad (INDONESIA ENVIRONMENT BUSINESS POLITICS) 

A villager picks up water spinach growing in a polluted pond, which is used as a dumpsite for waste from a palm oil factory in the Luwu district of Indonesia's South Sulawesi province September 9, 2009. Indonesia's parliament passed a new environment bill on Tuesday giving the Environment Ministry the power to revoke polluters' business licences, which environmentalists said could lead to more effective enforcement. Indonesia's rapid economic growth has been accompanied by widespread pollution of its waterways, soil and air, as well as the destruction of its forests and wildlife, prompting criticism from green groups and the World Bank. REUTERS/Yusuf Ahmad (INDONESIA ENVIRONMENT BUSINESS POLITICS) 

A woman paddles a makeshift boat after harvesting water spinach in Laguna Lake in Taytay town, east of Manila, June 23, 2009. REUTERS/Erik de Castro (PHILIPPINES AGRICULTURE) 

A man harvests water spinach in Laguna Lake in Taytay town, east of Manila, June 23, 2009. REUTERS/Erik de Castro (PHILIPPINES AGRICULTURE) 

A masked resident harvests water spinach in Laguna Lake in Taytay town, east of Manila, June 23, 2009. REUTERS/Erik de Castro (PHILIPPINES AGRICULTURE) 

Workers paddle a raft amid water lilies covered lake after harvesting water spinach in Taguig City Metro Manila July 8, 2008. REUTERS/Cheryl Ravelo (PHILIPPINES) 

A worker picks some New Zealand spinach growing in a greenhouse at an organic farm located on the outskirts of Beijing June 20, 2008. The farm, one of around 500 organic farms in China, grows fruit and vegetables for mainly foreign markets such as Japan, Malaysia and the United Kingdom. However during the Olympic Games in August, they will be supplying produce to official caterers. REUTERS/David Gray (CHINA) 

A worker picks some New Zealand spinach growing in a greenhouse at an organic farm located on the outskirts of Beijing June 20, 2008. The farm, one of around 500 organic farms in China, grows fruit and vegetables for mainly foreign markets such as Japan, Malaysia and the United Kingdom. However during the Olympic Games in August, they will be supplying produce to official caterers. REUTERS/David Gray (CHINA) 

A worker holds some New Zealand spinach after he picked it from a greenhouse at an organic farm located on the outskirts of Beijing June 20, 2008. The farm, one of around 500 organic farms in China, grows fruit and vegetables for mainly foreign markets such as Japan, Malaysia and the United Kingdom. However during the Olympic Games in August, they will be supplying produce to official caterers. REUTERS/David Gray (CHINA) 

A farmer picks water spinach from a boat on a lake at Phnom Penh December 11, 2007. REUTERS/Emma Goh (CAMBODIA) 

A farmer picks water spinach from a boat on a lake at Phnom Penh December 11, 2007. REUTERS/Emma Goh (CAMBODIA) 

A view inside a typical shopping bag shows fresh corn, boxed oats, tomatos, spinach, iodized salt and other foodstuffs in the Rodriguez street market in La Paz, March 18, 2008. Food prices are soaring, a wealthier Asia is demanding better food and farmers can?t keep up. In short, the world is in a food crisis that is in danger of boiling over.
REUTERS/David Mercado (BOLIVIA) 

A farmer harvests water spinach at a river in Manila March 12, 2008. The water spinach will be sold to nearby markets for 18 pesos ($0.43) per bundle. REUTERS/Cheryl Ravelo (PHILIPPINES) 

A farmer tosses a bundle of water spinach after harvesting at a river in Manila March 12, 2008. The water spinach will be sold to nearby markets for 18 pesos ($0.43) per bundle. REUTERS/Cheryl Ravelo (PHILIPPINES) 

Farmers harvest water spinach at a river in Manila March 12, 2008. The water spinach will be sold to nearby markets for 18 pesos ($0.43) per bundle. REUTERS/Cheryl Ravelo (PHILIPPINES) 

A farmer tosses a bundle of water spinach after harvesting at a river in Manila March 12, 2008. The water spinach will be sold to nearby markets for 18 pesos ($0.43) per bundle. REUTERS/Cheryl Ravelo (PHILIPPINES) 

A resident harvests water spinach at a river in Manila March 12, 2008. The water spinach will be sold to nearby markets for 18 pesos ($0.43) per bundle. REUTERS/Cheryl Ravelo (PHILIPPINES) 

Palestinians collect spinach from a greenhouse damaged during last Thursday's snowstorm in the West Bank city of Hebron February 2, 2008. Picture taken February 2, 2008. REUTERS/Nayef Hashlamoun (WEST BANK) 

Farmer's Market intern Marianna Bellou harvests swiss chard on an urban farm plot in the Dorchester neighborhood of Boston, Massachusetts August 9, 2007. Each year The Food Project hires 60 youth to grow food on their farms in Boston and Lincoln, Massachusetts, during which these teens harvest and distribute over 60,000 pounds of produce at a farmer's market in Dorchester and to hunger relief agencies in greater Boston. REUTERS/Brian Snyder (UNITED STATES) 

A man balances his weight as he harvests water spinach from a murky swamp in Manila April 14, 2007. REUTERS/Cheryl Ravelo (PHILIPPINES)