Poison pea- fact or fiction?

I'm gathering sweet pea seeds from my work. They grow prolifically here with 0 watering. I thought it would be quite nice to spread them in my tree line and along the fence lines. Then I thought I'd Google to see if they were edible. A lot of articles said they were poisonous. Then there was this:http://honest-food.net/2013/08/22/the-myth-of-the-poison-pea/

Summarized that article says you can get a wasting sickness if you eat these peas as a large percentage of your diet, but added to a normal diet it is not an issue.

So what say you Permies? Poisonous or no? Do you eat them? If I plant them will I be polluting my domesticated pea genes with poisonous ones?

Also, anyone eat vetch either?

I liked this quote from the article, "What’s more, wild peas, as much as any food anywhere, highlight one of the defining features of our human biology: We Homo sapiens are designed, over a million years of experience in nature, to eat a little of a lot, not a lot of a little. Good words to live by even today."

All beans and peas are somewhat poisonous to humans. Some more than others. Some cooking techniques minimize the poison better than others. (Pre-soaking, sprouting, long cooking times, hot temperatures).

I don't eat sweet pea seeds, because the seeds are very tiny, and I don't have enough plants to harvest enough seed to be worth eating. Sweet peas (the flower) are a different species than garden peas: Therefore, they are unlikely to cross. Especially considering that the self pollination rate of garden peas is something like 99.5% (in my garden).