Did you know how closely your body weight and your immune system are connected? In simple words it can be said that a healthy body weight and balanced diet usually increases defense strength, whereas an overweight organism is often susceptible to infections. The more overweight a person is, the more drastic is the effect on the immune system. Obesity and visceral abdominal fat often cause chronic inflammatory processes that put so much strain on the immune system that there is no strength left to fight off the autumn and winter viruses! One of the best ways to strengthen your immune system is to eat a balanced diet personalized to your body such as a personal Metabolic Balance nutrition plan.