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What supplements should I be taking after weight loss surgery?

After weight loss surgery is a crucial time for patients to maintain nutrient levels for successful recovery. This will help to continue your weight-loss journey with optimal nutrition. Additionally, the amount of food consumed initially post-surgery is too small to reach adequate levels of certain nutrients (in particular micronutrients). Supplementation is a life-long commitment, and an important one to ensure longevity and good health.

Here is a list of some supplements that are important post-op and for the long-term after bariatric surgery:

  • Multivitamin – a high-potency multivitamin and mineral supplement will contain adequate amounts of iron, folate, selenium, thiamine, magnesium, copper and zinc. The dosage may be higher initially post-op, and decrease over the long-term. Chewable options may also be available.
  • Calcium
  • Vitamin D
  • Vitamin B12
  • Fibre – smaller portions and smaller amounts of nutrients supplied by the diet means that fibre intake can be lacking after surgery. Fibre is crucial for healthy gut function, regular bowel movements and overall bowel health.

Your specific supplement needs will be discussed with your dietitian and surgeon. Everyone’s weight loss journey post surgery is very different, so the need for specific supplements or the dose of a particular supplement can differ between people. Maintaining contact with your bariatric healthcare team and getting regular blood tests can assist in finding the right level of supplements for you.