London: Superfoods may have been the mainstay of the health industry for a long time, but now researchers are questioning their much touted health promoting properties.Foods such as broccoli, blueberries and whole grains do contain polyphenols, compounds that have antioxidant and anti-inflammatory properties, but their health-giving properties seldom make it past the gut, contend experts."Polyphenols may well work when cells are exposed to them directly, such as under laboratory conditions, but what needs to be established is how effective they are when consumed as part of a food," said Lucy Jones, Kingston University`s deputy dean of the faculty of science, engineering and computing."If they don`t actually get through the gut membrane and into the rest of the body, then they`re not a super food," said Jones, who with colleague Elizabeth Opara have taken a model developed in the early 1980s by Sloane Kettering Institute in the US and adapted it to see if and how medicinal Chinese herbs, known to limit the growth of cancer cells, are absorbed in the body.
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