Assessment of Dietary Intake and Nutritional Status of Former Opioid Users Undergoing Detoxification Process

Rationale: Opioid dependence is often associated with impaired nutritional status, weight changes, nutritional deficiencies, and increased sugar consumption. Scientific quantified data on the dietary habits and intake of such patients are sparse.Methods: This was a cross-sectional study. The study was conducted among 60 male and female former heroin addicts, who sought detoxification at the OKANA replacement therapy unit, in a public university hospital. All patients were treated for their addiction with buprenorfine/naloxone in combination with counseling. With the use of an administered questionnaire, several parameters were assessed and recorded, including nutritional habits, anthropometric characteristics, recent weight and medical history, and physical activity level of the participants. Additionally, a three-day dietary recall was performed and quantified with the aid of nutritional analysis software. The results were compared with the macronutrient requirements, calculated total energy expenditure, and the population reference intake (PRI) of the participants. Finally, the level of compliance of the participants to the Mediterranean diet model was assessed using the Mediterranean diet score tool.Results: The vast majority of the participants (77%) had a normal BMI of 18.5-25, and 15% were categorized as underweight (<18.5). Furthermore, 63% of the patients reported a mean unintended weight reduction of 9 kg over the last three months. Regarding mean energy and protein intake, no significant differences between reported intake and calculated requirements were recorded. Sugar consumption was high since it reached 20% of the total energy intake. Micronutrient intake was significantly lower for vitamins K, E, and C and potassium compared with the PRI (p=0.034, p=0.001, p=0.046, and p=0.001, respectively). Finally, a low adherence of the participants to the Mediterranean diet model was observed since 38% scored <= 15 and 62% <= 30 on the Mediterranean diet score tool.Conclusions: According to the results of the study, the general nutritional status of this category of patients seems to be impaired, presenting an apparent weight reduction and an inadequate intake of some micronutrients and displaying disturbed eating behaviors. Further data on the field are required to build a future evidence base. Dietary assessment and individualized nutritional counseling, when necessary, might need to be incorporated into the typical clinical management of this patient category to avoid nutritional deficiencies and improve the withdrawal process.