How Vitamin D interacts with orlistat

Interaction type: Depletions

Interaction rating: Study Supported

A one-year weight loss trial, showed patients taking orlistat had decreased blood levels of vitamin D compared to the patients not taking the orlistat. Supplementation with the affected nutrient may be necessary. (1)


  1. View Abstract: James WP, Avenell A, Broom J, et al. A One-year Trial to Assess the Value of Orlistat in the Management of Obesity. Int J Obes Relat Metab Disord. Jun1997;21(Suppl 3):S24-30.