In this presentation, we will explore the critical interplay between nutrition and substance use disorder. We'll examine how substance abuse can disrupt nutritional balance, leading to deficiencies that exacerbate both physical and mental health issues. Key topics include the impact of various substances on appetite, metabolism, and nutrient absorption. Additionally, we'll discuss the co-occurrence of eating disorders and substance use disorders. We will explore how integrating nutritional interventions based in the Intuitive Eating and weight-inclusive framework can support recovery, improve overall well-being, and reduce relapse rates.