Breast milk 'may be allergy key'

A study may have discovered why breastfeeding might help protect children against allergies such as asthma, scientists have said.

The French research, published in Nature Medicine, shows female mice exposed to allergens can pass them directly to their offspring in milk.

This allows the newborns to become "tolerant" of the substance.

However, in humans, the link between breastfeeding and reduced asthma risk remains unproven, say experts.


http://news.bbc.co.uk/2/hi/health/7208941.stm