# Oral High-Dose Vitamin D Dissolved in Oil Raised Serum 25-Hydroxy-Vitamin D to Physiological Levels in Obese Patients After Sleeve Gastrectomy—A Double-Blind, Randomized, and Placebo-Controlled Trial

**Type:** Papers  
**Canonical URL:** https://scholariq.org/papers/oral-high-dose-vitamin-d-dissolved-in-oil-raised-serum-25-hydroxy-vitamin-d-to/

## Facts

| Field | Value |
| --- | --- |
| Author Names | Eva Wolf,Markus Utech,Peter Stehle,M Büsing,Hans‐Peter Helfrich,Birgit Stoffel‐Wagner,Sarah Egert,Birgit Alteheld,R. Riege,Annette Knapp,Sabine Ellinger |
| Citations | 29 |
| DOI | 10.1007/s11695-015-2004-0 |
| Fields | Medicine |
| Open Access | false |
| OA Status | closed |
| OpenAlex ID | https://openalex.org/W2217223843 |
| PMID | 26704923 |
| Type | article |
| Year | 2015 |

## Paper authors

- [Hans‐Peter Helfrich](https://scholariq.org/researchers/hans-peter-helfrich/)

## Paper journal

- [Obesity Surgery](https://scholariq.org/journals/obesity-surgery/)

## Paper primary topic

- [Bariatric Surgery and Outcomes](https://scholariq.org/topics/bariatric-surgery-and-outcomes/)

## Paper topics

- [Bariatric Surgery and Outcomes](https://scholariq.org/topics/bariatric-surgery-and-outcomes/)
- [Parathyroid Disorders and Treatments](https://scholariq.org/topics/parathyroid-disorders-and-treatments/)
- [Nutrition and Health in Aging](https://scholariq.org/topics/nutrition-and-health-in-aging/)

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Source: ScholarIQ — public research metadata, principally OpenAlex. See https://scholariq.org/sources/ for provenance and https://scholariq.org/methodology/ for what these figures mean.