Chickpea
species of plant
Would vegans consider chickpeas for a tuna substitute?
Vegans do not eat any animal products, including milk, eggs, meat, and cheese.  Vegan alternatives for things like mayo exist.  There are vegan recipes for "tuna" online that include chickpeas as the main component.
What kinds of foods do vegans avoid? What are replacements for #1 in vegan diets called? What are some #2 for tuna? Are chickpeas included in the recipes of any of #3?