Differences between organic and conventional tomatoes can be explained by the manure used in both cases. "Organic farming doesn't use nitrogenous fertilizers; as a result, plants respond by activating their own defense mechanisms, increasing the levels of all antioxidants," explains the first author of the article, Anna Vallverdú Queralt. "The more stress plants suffer, the more polyphenols they produce," points out lecturer Lamuela.
Numerous scientific investigations show that the consumption of these antioxidants has numerous health benefits. Researchers claim that more studies of clinical evidence are still needed to be able to state that organic products are truly better for our health than conventional ones. Lamuela would like to carry out a study with humans comparing organic and conventional tomato consumers.