Stay up to date on all things weight loss surgery. Sign up and we’ll send you the latest news, resources, scientific breakthroughs, events, tips, and much more.

Share this post on your profile with a comment of your own:

Successfully Shared!

View on my Profile

Absorption of Transdermal Vitamins in Post Bariatric Surgery Patients

October 23, 2019


This study is exploring the absorption of vitamins in patients using a transdermal patch after bariatric surgery. Once a patient has had bariatric surgery, many either develop new vitamin and/or mineral deficiencies or find that their prior deficiencies are exacerbated. Several bariatric supplement products exist to counter this, including transdermal patches. All patients enrolled in the study will have previously chosen to use the Patch MD MultiVitamin Plus patch for vitamin and mineral supplementation versus oral or other dosage forms of vitamins after surgery.The purpose of this study is to observe the concentrations of serum micronutrients and determine how many deficiencies develop in patients who use a transdermal patch.


Study Information

This is an observational study of approximately 100 participants. The study began on December 15th 2017 and is estimated to be completed on November 18, 2019.


Inclusion Criteria

  1. Candidates for a sleeve gastrectomy or gastric bypass surgery
  2. Willingness and ability to provide informed consent in English
  3. Commitment to the 1 year study period


Exclusion Criteria

  1. Planned bariatric revision surgery
  2. Patients with a left ventricular assistance device
  3. Known End Stage Renal Disease
  4. Known mutation in methylenetetrahydrofolate reductase (MTHFR) gene
  5. Medical conditions requiring vitamin and mineral supplementation



This study is taking place at the University of Florida, Gainesville, Florida, United States, 32611. For further information, please contact Jeffrey E Friedman, MD on (352) 594-5117 or at You can also contact Tyler Culpepper, PhD on (352) 406-4369 or at


Sponsors / Collaborators

This study is sponsored by the University of Florida, with Jeffrey E Friedman, MD as the Principal Investigator.

Clinical Trials

View All Clinical Trials

Alcohol and Bariatric Surgery

This study is exploring the relationship between alcohol and three forms of bariatric surgery, Roux-en-Y gastric…

Probiotic Supplementation on Weight Loss

This study is looking to assess the role of a probiotic, which is a dietary…

Aromatherapy in Management of Postoperative Nausea

This study is looking to determine the effectiveness of using peppermint oil aromatherapy vs. traditional…

Effects of Weight Loss Surgery on Bone Health in Adolescents

The purpose of this study is to examine the effects of weight-loss surgery (specifically Roux-en-Y gastric bypass…

Comparative Effectiveness of Bariatric Surgery With PROMs

This is a long-term, nationwide study aiming to determine the quality, safety, and comparative effectiveness of…

Effects of Wolffia Globosa in Patients Undergoing Bariatric Surgery

This study is assessing the effects of using Wolffia Globosa (Mankai), a…

Resting Metabolic Rate Testing in Bariatric Surgery Patients

This study is evaluating if measuring the patient’s resting metabolic rate (the number of calories the body burns…

Send this to a friend