“From an evolutionary perspective,” he says, “oxytocin is released during positive social interactions — when we are around others who care about us. This is just when food sharing is likely to occur. If we want to lose weight, having others around us who care about us can help reduce appetite.”
And at the same time, University of Lubeck neuroendocrinologist, Manfred Hallschmid, of Germany, warns that “long-term clinical trials are clearly necessary to answer the question whether oxytocin is effective in reducing body weight and if such an effect might go along with unwanted psychosocial side effects.”
Obviously, more studies will be conducted.