You might be surprise just how restricted the sources are.
2004 FAO Report: "What is Agrodiversity." (Read it about a week ago - Scary).
* Today, 75 percent of the world’s food is generated from only 12 plants and five animal species.
For example so far today I have had food from
Cow (milk, cheese)*
Hen (egg)(bakery item)
Sugar (bakery item)*
Unknown fats( bakery item)*
Raisins (bakery item)
So just 10 sources with almost all the calories from 5 sources*.
I expect by the end of the day I will have added maybe 5 more as we will have some salad in a while but the calorie balance won't change much.
Discounting chemicals (petroleum?) and flavorings in prepared items I doubt if often have food from more than 15 sources on any one day. Over the year I suppose 95% of my calorie intake from maybe 4 to 6 items and 99.5% from maybe 20-30 items (pure guess). Frightening really. Ironically, the more developed the location, the more restricted the diet may be. Since I read the report I have been trying to make sure that I get a little more variety. Much to be said for a little plot of ground.
How many sources do you eat from on a routine basis?