Spanish researchers discovered that tomato-based sauce has nearly 40 antioxidants which can prevent the onset of 'oxidative stress' on the heart. The sauce must contain all the ingredients -onion, olive oil and corn flour.
Sofrito, which is a Mediterranean diet, is made form tomato but also contains olive oil onion, corn flour and even garlic and is thought to prevent stroke and heart attack.
Spanish researchers say that tomato-based sauce contains as many as 40 antioxidants, called polyphenols, which are believed to protect the heart from 'oxidative stress.'
'Those sofrito which contain extra-virgin olive oil have better antioxidant properties as they are richer in phenolic compounds. First, there is a synergistic effect among ingredients which is translated into a higher number of total polyphenols. Second, the sofrito contains more polyphenols than tomato or tomato juice because garlic, oil and onion provide polyphenols too.'