When choosing a multivitamin after weight loss surgery, it's important to ensure the product meets the ASMBS supplement guidelines in order to prevent vitamin and mineral deficiencies throughout the lifetime. Over the counter supplements do not provide adequate amounts of vitamins and minerals after surgery which can lead to bone loss, muscle loss, neurological issues, and anemia after weight loss surgery. The recommendations for bariatric supplements are as follows:


At least 12 mg/day

Folic Acid

400-800 mcg/day (800-1000 mcg/day for female child bearing age)

Copper (RNY)

2 mg/day


1 mg/day

Zinc (RNY)

8-22 mg/day


8-11 mg/day

Zinc –to- Copper ratio: 8-15 mg of Zinc for every 1 mg of Copper


350-500 mcg/day

Vitamin D

3000 IU/day

Vitamin A

5000 -10,000 IU/day

Vitamin E

15 mg/day

Vitamin K

90-120 mcg/day

Vitamin K

90-120 mcg/day


45-60 mg/day CANNOT take with Calcium *may be individualized w/ RD


1200-1500mg/day (take in divided doses of 500-600mg)
Calcium Citrate – take with or without food
Calcium Carbonate – take with food
*may be individualized w/ RD if eating high amounts of calcium foods

In our office, we have several products that are safe to consume and meet the requirements. Below are options available.

  • Bariatric Advantage Ultra Solo with iron: Serving: 1 capsule per day.
  • Bariatric Advantage Chewable Advanced Multi EA: Serving: 2 tablets per day.
  • Bariatric Advantage Ultra Multi with iron: Serving: 3 capsules per day.
  • Bariatric Advantage Multi Chewy Bite: Serving: 2 chews per day. Does NOT contain iron, copper, or enough thiamin. Would need to have a Bariatric advantage iron capsule with thiamin and copper with the multivitamin.
  • Celebrate One Multivitamin w/ 18 mg of iron:Serving 1 capsule per day.
  • Bariatric Fusion MVI Capsule with iron: Serving: 1 capsule per day.
  • Bariatric Fusion Chewable Complete Multi: Serving: 2 tablets in AM and 2 tablets in PM. Has multivitamin, iron and calcium all in one.

Parrott, J., Frank, L., Rabena, R., Craggs-Dino, L., Isom, K. A., & Greiman, L. (2017). American Society for Metabolic and Bariatric Surgery Integrated Health Nutritional Guidelines for the Surgical Weight Loss Patient 2016 Update: Micronutrients. Surgery for Obesity and Related Diseases, 13(5), 727–741.