Salicylic acid, or Aspirin may be a health food – a naturally occurring plant defense that helps dispose of rubbish (old cells) in the body.  A daily intake of about 75mg has been considered medically a good idea for most although the side effect of intestinal bleeding for 0.1% of the population deters general use.  But for most a daily small dose of Aspirin is an inexpensive way to ward off heart disease, various cancers and dementia.

See: http://www.economicexpert.com/a/Salicylic:acid.html