Why was this study done?

This study was designed to investigate the assessment of vitamin A status in humans.

What did the study find?

The study determined that fasting is the best state to determine vitamin A status as many blood changes occur following a carotene-rich meal.

Acute Effects of Dietary Carotenes on Serum Alpha and Beta Carotene in Humans.

Authors: Jensen CD, et al. Nutr Rep Int, 1986. 33(1): p. 117-22.
PDF Manuscript: Nutr Rep Int, 1986.