<p>The new phenotype of type 1 diabetic patients is characterised by the presence of insulin-dependent diabetes alongside overweight or obesity. Recently, a significant increase in such cases has been observed, linked to sedentary lifestyles, hypercaloric diets, and the use of insulin pumps (CSII). While these pumps are used for proper glycaemic control, they are also used to counteract glycaemic fluctuations caused by unhealthy eating habits. The resulting weight gain, associated with the anabolic action of insulin, also increases the risk of both microvascular and macrovascular complications. In predisposed individuals, specific eating disorders have been described in relation to the use of CSII for weight control, a phenomenon that is increasingly frequent, especially among young diabetic patients. Physical appearance has always played a crucial role in social integration and self-acceptance, a condition that reinforces the tendency to self-manage the number of insulin infusions to counteract the effects of poor dietary choices. A multidisciplinary approach is essential. Adopting healthy lifestyles and correctly using new technologies for diabetes management can be effective tools in addressing this phenomenon.</p>