Cyanide is found in a wide range of vitamins and foods in a form known as cyanocobalamin, which because it is bound to cobalamin (vitamin b12), significantly reduces the potential for the cyanide to do harm. Cyanocobalamin is actually found in 99% of the vitamins on the market, as it is relatively cheap (recovered from activated sewage sludge or produced through total chemical synthesis), and stable (non-perishable).
One of the most remarkable papers I have read in the psychiatric literature was about a 57 year old woman who was treated with months of both antipsychotic and antidepressant medications and given two rounds of electroconvulsive treatment before anyone bothered to check her vitamin B12 level.
While some of us jump for joy with the arrival of spring, others greet it with dread. The warmer weather brings torture for many allergy and asthma sufferers. But there's good news: simple diet changes can help relieve allergy and asthma symptoms.