It's the ALLICIN that is the danger- Some studies have shown that raw garlic, like onions, can be dangerous potentially causing hemolytic anemia, which can be fatal. The Kyolic Liquid Aged Garlic Extract that Yarnall recommends using does not contain allicin, the chemical found in garlic and onions that is implicated in hemolytic anemia. The Kyolic website states that "raw garlic and some garlic preparations have been shown to cause allergic skin reactions, stomach ulcers, hemolytic anemia and other symptoms. However, AGE has not demonstrated such undesirable effects, even at excessive dosage levels. In fact, AGE preparations have even shown blood building effects in studies. Aging, greatly decreases the toxicity of raw garlic and AGE is almost without toxicity even when a very large dose is taken. Further, its safety has been well established by several preclinical and clinical toxicity tests. allicin