A New Zealand organic food organisation disputes the claim that organic food is no better for you than conventionally produced food.
The assertion has been made in a British study, which says that, while there are several small differences between the two kinds of food, they're unlikely to be of any significance to public health.
The results of the study, commissioned by the British Food Standards Agency, were published on Thursday in the American Journal of Clinical Nutrition.
The executive officer of Organics Aotearoa New Zealand, Gavin Middleton, says that organic food contains more vitamins and minerals and that there is current research to prove it.
He says more and more New Zealanders are choosing to buy organics because they prefer food that has significant health benefits and is ethically grown and sold.
The British Soil Association has also faulted the study, saying that its methodology had led researchers to reject some clear nutritional benefits as "not important".
The researchers, from the London School of Hygiene and Tropical Medicine, reviewed 162 scientific papers published over the past 50 years.