Yeah, my DD1 has a horrible allergic reaction to guinea pigs. Her eyes swell up, her face breaks out in hives, and her nose get starts running. True, this is just one person's reaction but it's worth checking out yourself before investing in the pigs.

Sidenote: there's quite a bit of evidence that Native Americans cultivated giant rag weed for the edible seeds. However about 1400 years ago they stopped doing this. The working theory as to why they stopped was that too many of them became allergic to the ragweed pollen.

-Blast