Adventia Pharma's Barimix Sleeve is a food supplement designed for people who have undergone restrictive surgeries such as gastrectomy or gastric banding. It contains a unique formula of minerals and vitamins that provide the necessary nutrients for the body. It is ideal for treating nutrient deficiency after restrictive bariatric surgeries and can be used in medical weight loss interventions. However, it is important to remember that food supplements should not replace a balanced diet and a healthy lifestyle.