Vitamin A Value of Spirulina Carotenoids in Humans

Completed · Phase 1/Phase 2

Conditions studied: Intrinsically Labeled Spirulina

In brief

The goal of this protocol is to determine the vitamin A value (equivalence) of spirulina. The investigation will use intrinsically deuterium labeled spirulina and an isotope vitamin A reference dose, 13C10- retinyl acetate (13C10 RAc), in males (n=20). Up to 45 blood samples (10 ml/sample) will be collected from each subject over a two-month period to evaluate the bioavailability and bioconversion of spirulina ß-carotene to vitamin A.

Key facts

Study ID

NCT00680277

Run by

Tufts University

People needed

20

Starts

2004-04-01

Expected to finish

2008-12-31

Last updated by the study team

2017-10-12

Who can join

Age: 40 and older, up to 70. Sex: male. Healthy volunteers: accepted.

You may qualify if…

• Healthy volunteer

You may not qualify if…

• Not has GI track problems
• Any medical condition that will affect the intestinal absorption

Where it is running

• USDA Human Nutrition Research Center on Aging, Tufts Uni. — Boston, Massachusetts, United States

Full record on ClinicalTrials.gov

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