Today the overweight is a worldwide problem called “Globesity”. At a glance, in the USA obesity has increased from a range of 14 percent in 1990 to more than 25 percent in 2007 (1). In 2010 35 percent of European children aged between 5 and 17 is overweight while 5 percent is obese (2). Overweight and obesity are defined as abnormal or excessive fat accumulation that may impair health (3). The main causes are the lifestyle, nourishment, age, genetics and many others. As many of the above mentioned factors are hard to modify and control, the only two variables we can easily handle are lifestyle especially physical activity and nourishment. The latter substantially influences weight. Healthy and natural food, integrated with ingredients for the physiological maintenance in keeping weight under control. Seaweeds are well renowned for their benefits in terms of nutrients; Several biologically active compounds have been identified in seaweeds, among them: carotenoids, terpenoids, polyphenols, sulfated polysaccharides, peptides and fibres, showing a wide range of biological properties, such as antibiotical, antiinflammatory, antioxidant, cytotoxic and antitumor activities.