How much nutritional value is in carrots and other produce grown today?

Dear EarthTalk: What’s the nutritional difference between the carrot I ate in 1970 and one I eat today? I’ve heard that that there’s very little nutrition left. Is that true?Esther G.Newark, N.J.It would be overkill to say that the carrot you eat today has very little nutrition in it — especially compared to some of the other less healthy foods you likely also eat — but it is true that fruits and vegetables grown decades ago were much richer in vitamins and minerals than the varieties most of us get today. The main culprit in this disturbing nutritional trend is soil depletion: Modern intensive agricultural methods have stripped increasing amounts of nutrients from the soil in which the food we eat grows. Sadly, each successive generation of fast-growing, pest-resistant carrot is truly less good for you than the one before.A landmark study on the topic by Donald Davis and his team of researchers from the University of Texas (UT) at Austin’s Department of Chemistry and Biochemistry was published in December 2004 in the Journal of the American College of Nutrition. They studied U.S. Department of Agriculture nutritional data from both 1950 and 1999 for 43 different vegetables and fruits, finding “reliable declines” in the amount of protein, calcium, phosphorus, iron, riboflavin (vitamin B-2) and vitamin C over the past half-century. Davis and his colleagues chalk up this declining nutritional content to the preponderance of agricultural practices designed to improve traits (size, growth rate, pest resistance) other than nutrition.“Efforts to breed new varieties of crops that provide greater yield, pest resistance and climate adaptability have allowed crops to grow bigger and more rapidly,” reported Davis, “but their ability to manufacture or uptake nutrients has not kept pace with their rapid growth.” There have likely been declines in other nutrients, too, he said, such as magnesium, zinc and vitamins B-6 and E, but they were not studied in 1950 and more research is needed to find out how much less we are getting of these key vitamins and minerals.The Organic Consumers Association cites several other studies with similar findings: A Kushi Institute analysis of nutrient data from 1975 to 1997 found that average calcium levels in 12 fresh vegetables dropped 27 percent; iron levels 37 percent; vitamin A levels 21 percent and vitamin C levels 30 percent. A similar study of British nutrient data from 1930 to 1980, published in the British Food Journal, found that in 20 vegetables the average calcium content had declined 19 percent; iron 22 percent; and potassium 14 percent. Yet another study concluded that one would have to eat eight oranges today to derive the same amount of Vitamin A as our grandparents would have gotten from one.What can be done? The key to healthier produce is healthier soil. Alternating fields between growing seasons to give land time to restore would be one important step. Also, foregoing pesticides and fertilizers in favor of organic growing methods is good for the soil, the produce and its consumers. Those who want to get the most nutritious fruits and vegetables should buy regularly from local organic farmers.UT’s Davis warns that just because fruits and vegetables aren’t as healthy as they used to be doesn’t mean we should avoid them. “Vegetables are extraordinarily rich in nutrients and beneficial phytochemicals,” he reported. “They are still there, and vegetables and fruits are our best sources for these.”

Latest News

Stephen S. Myers

LAKEVILLE — Stephen S. Myers, 82, of Lakeville, (formerly of New York City, Almond, New York, Kane’ohe, Hawaii, and Fair Oaks, California) passed away peacefully at his home on Nov. 30, 2024. He is survived by his wife Elizabeth “Betsy” (Phelan), his two sons Matthew and Shepherd, two nephews and three nieces.

Stephen was born in Elmhurst, Illinois, on Oct. 29, 1942, the son of the late Elwood Mosman and Donnie Marguerite Myers. Growing up in Glen Ellyn, Illinois, Stephen struggled with dyslexia in multiple high schools, ultimately graduating from Avon Old Farms High School in Avon, Connecticut.

Keep ReadingShow less
Ella L. Clark

WEST CORNWALL — Ella L. Clark, 83, a social worker, writer, and lover of nature and the Post Office, died Nov. 7, 2024 at Vassar Brothers Hospital in Poughkeepsie, after an acute stroke. Her family was with her in her last week.

Ella was predeceased by her parents, Benjamin S. and Charlotte L. Clark, her brother, Benjamin Clark, and her sister Tib Clark. Ella is survived by her daughter, Cristina Mathews of Fort Bragg, California, and her husband Jason and son Milo, her son Alexander Mathews, of Newton, Massachusetts, and his wife Olivia and children Ariana, Damian, and Torey, her daughter Jessica Meyer, of Pacific Palisades, California, and her husband Tim and children Ione and Nikos; and her sister Charlotte de Bresson of Paris.

Keep ReadingShow less
David Graeme Townsend

SALISBURY — David Graeme Townsend was born July 23, 1930, in Mineola, New York, to Rachel Townsend (Maxtone-Graham) and Greenough Townsend. David and his older brother Antone grew up in New York City and Long Island. Some of his early life was spent in Scotland in his mother’s family home, Cultoquhey, which is near Perth in the Highlands. Here he enjoyed summers with all his Maxtone-Graham cousins. Many of these cousins would remain close with David for his entire life. One cousin, Charles Smythe, even came to America to live with David and his family during the war where Charles became like a brother to David and Antone. David went to St. George’s in Newport, Rhode Island for a while and then on to Lawrenceville in New Jersey. He finished high school at the Basil Patterson School in Edinburgh, Scotland.

Immediately after high school, David enrolled in the US Marine Corps and served two tours in the Korean War. He was always very proud of his military service. After his service David attended the Sorbonne University in Paris for two years and then the University of Madrid for one year. Even though David never finished his formal education, he always remained an avid student of history and language. In his travels his skill with foreign languages was sometimes a problem because he spoke with such a good accent that it was sometimes falsely assumed that he was fluent.

Keep ReadingShow less
Richard George Ralph

EAST CANAAN — Richard George Ralph, 84, a beloved father, grandfather, and friend, passed away peacefully on Dec. 4, 2024, at his home in East Canaan, surrounded by his family. Born on Sept. 23, 1940, in Cornwall, Connecticut, he was the son of the late Marie (Kennedy) Ralph Negri and George Yeaton Ralph Jr.

Richard was the proud owner and operator of Richard Ralph and Son Rubbish Removal for many years. Known for his strong work ethic and reliability, he built a trusted business that served the community. After his retirement, his son Richard took over the reins, continuing the family tradition. Richard’s friendly demeanor meant that there weren’t many in the area who didn’t know him, and all were met with warm greetings and hearty waves.

Keep ReadingShow less