Arsenic and other heavy metals such as cadmium, lead, and mercury are all considered toxic and have adverse health effects in human metabolism. Accumulation of heavy metals in the food chain can occur by bio-concentration e.g. From water or the food source. Main intake sources of heavy metals are fish and seafood, fruits and vegetables, nuts and cereals. In the case of lead, drinking water is also of major importance. Since the toxicological effects of heavy metals and arsenic on babies and infants are of special relevance, the safety of baby food is also in the spotlight.