Evaluating Vitamin D Content in Mushrooms

Not Applicable

Completed

• Conditions: Vitamin D Deficiency

• Registration Number: NCT01815437
• Lead Sponsor: Boston University

Brief Summary

This study will evaluate how much vitamin D is present in a mushroom supplement. This supplement contains an extract from mushrooms that have been exposed to sunlight. The mushroom supplement will be compared to non-commercially available vitamin D supplements produced in a Goo Manufacturing Practices (GMP)-licensed facility.

Detailed Description

Mushrooms have the capability to produce vitamin D in a similar way to human skin. When exposed to ultraviolet light, mushrooms will convert a precursor to vitamin D. This reaction produces large amounts of vitamin D. This study is comparing a natural source of vitamin D to a synthetic source of vitamin D and will help determine if mushrooms are a novel source for this essential nutrient.

Study Timeline

• Study Start: 2012-01
• Study First Submitted: 2012-02-02
• Study First Submitted QC: 2013-03-19
• Study First Posted: 2013-03-21
• Primary Completion: 2013-06
• Study Completion: 2013-06
• Status Verified: 2017-03
• Last Update Submitted: 2017-03-23
• Last Update Posted: 2017-03-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

• All healthy adults, male and female, age 18-64 years

Exclusion Criteria

• Currently taking, or having taken less than one month prior to start of study, a prescription of 50,000 IU of vitamin D2 or 2000 IU vitamin D2 or vitamin D3
• Allergy to mushrooms
• History of elevated calcium (>10.4 mg%)
• Patients with a current or recent history of severe, progressive, and/or uncontrolled renal, hepatic, hematological, endocrine, pulmonary, cardiac, neurological, or cerebral disease.
• Supplementation with over the counter formulations of vitamin D2 or vitamin D3
• Subjects with a history of an adverse reaction to orally administered vitamin D.
• Subjects who are taking oral Dilantin or glucocorticoids.
• Exposure to a tanning bed or tanning on a beach for more than eight hours with no sunscreen within 2 weeks prior to start of study.
• History of intestinal malabsorption (i.e. cystic fibrosis, fat malabsorption syndrome, Crohn's Disease, gastric bypass surgery).
• Subjects with any other condition which in the Investigator's judgment would make the patient unsuitable for inclusion in the study.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Changes in total 25(OH)D in mushroom supplement or crystalline supplement	12 weeks	The primary outcome of this study is to examine changes in total 25(OH)D levels after ingestion of a vitamin D2 mushroom supplement manufactured by Monterey Mushrooms, Inc. compared to crystalline vitamin D2 from Nature's Life or vitamin D3 manufactured by Whole Health, Inc.

Secondary Outcome Measures

Name	Time	Method
Changes in gene expression due to mushroom supplement or crystalline supplement	12 weeks	The secondary outcome is to look at changes in gene expression, specifically if ingestion of 2000 IU vitamin D2 in a dried mushroom extract and the same quantity of mushroom extract once/day for three months has any added benefits or differences compared to taking crystalline vitamin D2 or vitamin D3.

Trial Locations

Locations (1)

Boston Medical Center; 🇺🇸 Boston, Massachusetts, United States