Weight loss surgery decreases the body’s ability to absorb vitamins and nutrients and/or restricts the amount of food you can consume. This can result in malnutrition, or vitamin and mineral deficiencies, that can be damaging to your health. Therefore, all patients should take vitamins for life as recommended by their bariatric surgeon. In addition to vitamins and minerals, patients learn to eat smaller, healthier meals; eat food high in protein first, and maintain hydration. Your weight loss surgery clinic should provide post-op nutrition support and offer key points for healthy eating habits for lifelong success.