Yeah those few pretty much wrap it up. I'm never eating algae or cacti.
That's a dumb attitude. Cacti produce some amazing fruits that I bet even a simpleton like you would enjoy. I eat about 60% of this list on a weekly basis, so some countries (not America) do actually have access to healthy foods already.
I'm not a simpleton, I'm just not gullible enough to eat arbitrary exotic food reccommended by a big company when everything I need is in stores around me.
Why not? My local mexican place does interesting things with cacti, very tasty. If you've ever had sushi you've probably had seaweed..which is part of the algae family.
Canned nopal can be readily found at grocery stores around here (Chicago). I'm sure I could find algae easily enough if I tried...