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Just imagine, all the people at any given time of year (let alone cold/flu season) walking by it sneezing, coughing, touching it with grimy hands. Where you put your hands.
... hmm .. interesting ... i'm always looking for ways to reduce chances of cancer ... who woulda thought crusts could help rats out like that .. am gonna start feeding crusts to everything .. goldfish, ladybirds n that
A 2009 study showed that rats fed a serving of bread crusts every day developed 72 percent fewer of a particular kind of bowel lesions. These lesions are thought to be a cause of bowel cancer.
Which brings me back to the possibility that human hair may be used in bread. A vegetarian friend alerted me to the existence of an animal-based flour additive called L-Cysteine. It is an amino acid which is used as a flour improver. It is known as E920 and is permitted for use in all biscuits, breads and cakes except those that claim to be wholemeal. The problem for a would-be vegan like me is that traditionally L-Cysteine is produced from feathers, pig bristles and sometimes even human hair. These days L-Cysteine can also be produced synthetically but apparently human hair remains one of the richest sources of this amino acid – it makes up about 14% of your hair - and there is a small industry in China making the additive from hair clippings.