Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Amaranth:

"

In pre-Hispanic times, amaranth was cultivated by the Aztec and their tributary communities in a quantity very similar to maize.[5] Known to the Aztecs as huāuhtli,[6] amaranth is thought to have represented up to 80% of their energy consumption before the Spanish conquest.[citation needed]