UK Vegetables 20-50% Less Nutritious Than In the 1960s

The Telegraph reports that the nutritional value of fruit and vegetables has fallen by up to 50% since the Sixties, according a new study from researchers at startup studio Deep Science Ventures.

The study "found that humans needed to consume twice the number of vegetables to get the same level of minerals such as potassium, magnesium or copper as would have been present in their food 60 years ago."

The study found that many crops had lost 20% to 50% of several key nutrients... The decrease in nutrient and vitamin value is thought to be down to declining soil quality and crops being selectively bred for their ability to grow quickly, rather than there being any focus on their health benefits... It raises the prospect that the advice to eat five portions of fruit and vegetables a day, introduced in the UK in 2003, may need to be updated. The report added that people on weight-loss drugs could be most at risk from the lack of nutrients, as the treatments could cause them to consume less food...

Nature-friendly farming techniques, such as planting crops that restore nutrients to the soil, could help improve the health benefits of vegetables, according to the researchers.