Health Canada is warning Canadians that a number of novelty magnet sets marketed to adults that were sold in Canada are a danger to human health or safety . These sets contain small, powerful magnets that can be easily swallowed or inhaled by children of all ages resulting in serious adverse effects on their health. Health Canada is now taking action to identify and have these dangerous products removed from the marketplace. When more than one powerful magnet is swallowed in a short period of time, the magnets can attract one another while moving through the intestines. This can cause the intestines to twist, creating blockages or tearing of the intestinal walls. The results of swallowing small, powerful magnets can be very serious and life-threatening. Swallowing incidents have often resulted in considerable damage to the gastrointestinal tissues and required emergency surgical treatment. For survivors, there can be serious lifelong health problems. Health Canada is particularly concerned about novelty magnet sets containing more than one small, powerful magnet, regardless of the intended age of the user, where the set is intended for use as a toy or manipulative for general entertainment, such as puzzle working, sculpture building, mental stimulation or stress relief. These sets generally consist of a number of small (various sizes, but commonly 5 mm in diameter) powerful, rare earth element magnetic pieces in spherical, cube and/or cuboid shapes. Rare earth element magnets are many times more powerful than traditional magnets and pose unique dangers. Health Canada has identified the following novelty sets that may have been distributed in Canada: BuckyBalls Magnetic Building Spheres BuckyBalls BuckyBars Magnetic Building Rods BuckyBalls BuckyBigs XL Magnetic Building Spheres BuckyBalls BuckyCubes Magnetic Building Cubes BuckyBalls Chromatics Magnetic Building Spheres BuckyBalls Sidekick Magnetic Building Spheres Nanodots Spheres Nanodots Colors Mega Nanodots sets Magnicube Magnet Balls Magnicube Magnet Cubes Neoballs (polymer, electroplate) Neocube Alpha Neocube G Neocube Omega Neo Mini CubeTastic Value Pack NeoMagnetic Cube 5mm Triple Nickel NeoMagnetic Cube 6mm Triple Nickel NeoMagnetic Cube 5mm Gold NeoMagnetic Cube 5mm Glazed Spheres Various Colours NeoMagnetic Square 5mm SuperMagnetMan Super neo magnet sphere sets (SP0190) SuperMagnetMan Super small neo magnet sphere sets (SP0326) SuperMagnetMan Super neo magnet sphere sets (SP0510) Zen Magnets Zen Magnets Mini Zen Mandala Set In addition to concerns with novelty magnet sets marketed to adults, since 2006 there have been several recalls of children’s toys with powerful magnets where the magnetic pieces were either small enough to be swallowed, or tiny magnets were separating from the toy and being swallowed by children. Consumers should check the Healthy Canadians Recalls and Safety Alerts database for dangerous toys and take action to remove toys of concern. Even if not recalled, remove and safely discard any toys with powerful magnets where the magnets are loose or the magnetic toy pieces are small enough to be swallowed.