Grape Sugar: [alpha]-D-glucopyranose

The FDA and the NIH NLM believe that vine grapes are produced from (grown on) corn stalks!  

Grape Sugar: [alpha]-D-glucopyranose
Grape sugar can PROVE FATAL to corn-allergic citizens, 21CFR184.1857.
https://grapesugaralphadglucopyranose.quora.com/