I'm surprised that people don't strip all these berries from the bushes as soon as they appear. The pigment that makes them black is called anthocyanin and this is said to be a 'wonder food'. Anthocyanin is under research by the pharmaceutical industry for multiple uses. I'm feezing them for use over the winter. However in reading about blackberries, I read about an even more 'wonder food berry' and this is the cherry which for all practical purposes comes from the supermarket. I recommend those sold at the Co-op.