Delphinidin also is good against cancer & other health issues

Very welcome

Delphinidin also is good against cancer & other health issues.
Black beans, black rice, black sesame seeds, etc,
some blue flowers used medicinally Blue Lotus, & Blue Butterfly Pea Flowers. https://t.co/xhd7bSOevY

— Jennifer Depew, RD (@deNutrients) November 26, 2021

From Wikipedia, 

Delphinidin (also delphinidine) is an anthocyanidin, a primary plant pigment, and also an antioxidant.  Delphinidin gives blue hues to flowers in the genera Viola and Delphinium.  It also gives the blue-red color of the grape that produces Cabernet Sauvignon and can be found in cranberries and Concord grapes as well as pomegranates and bilberries.  Delphinidin, like nearly all other anthocyanidins, is pH-sensitive, i.e. a natural pH indicator, and changes from red in basic solution to blue in acidic solution.

from BMC Cancer,  

Delphinidin, an anthocyanidin monomer, exerts the strongest antioxidative efficiency of all anthocyanidins in the human diet. Our previous studies confirmed the anticancer activities of anthocyanidin and delphinidin-3-glucoside against breast cancer

Given that Delphinidin provides the "blue hues to flowers" and "blue-red color of the grape . . . found in cranberries and Concord grapes as well as pomegranates and bilberries," that the only commercially available Delphinidin product I could find at Amazon was Maqui Berry.