Cyanide Poisioning

What the internet says:

1. Peach pits, not likely.
Plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants or pits can lead to serious cyanide poisoning.

2. May cure cancer.
Laetrile, a compound that contains amygdalin (a chemical found in the pits of raw fruits, nuts, and plants) has been purported as a cancer treatment worldwide. One of the side effects of laetrile is cyanide poisoning. The FDA has not approved laetrile as a cancer treatment in the United States. The drug is also made and used as a cancer treatment in Mexico under the name "laetrile/amygdalin."

3. Just in case.
The symptoms of cyanide poisoning are similar to those experienced when hiking or climbing at high altitudes. Such as: general weakness, confusion, bizarre behavior, excessive sleepiness, coma, shortness of breath, headache, dizziness, and seizures. The skin of a cyanide-poisoned person can sometimes be unusually pink or cherry-red because oxygen will stay in the blood and not get into the cells. The person may also breathe very fast and have either a very fast or very slow heartbeat. Sometimes the person's breath can smell like bitter almonds, though this can be difficult to detect.