Ethical shoppers are being warned that free-range eggs may be less healthy than those from caged birds.
Scientists found that free-range eggs contain at least five times higher levels of certain pollutants than normal eggs.
Around 17 per cent of the free range eggs had levels that European regulators would have deemed unsafe for consumption.
The study was carried out in Taiwan but the findings will raise concerns about the safety of eating free-range chicken eggs in the UK.
Free-range chickens are those that have continuous access to fresh air, sunshine, and exercise, in contrast to chickens that are confined to cages.
But scientists suspect that free-range chickens may risk getting higher levels of exposure to environmental pollutants, particularly PCDDs and PCDFs, potentially toxic substances that are produced as by-products of burning waste. [Read more...]
