Effects of Ascorbic Acid on Serum Cortisol and the Testosterone: Cortisol Ratio in Junior Elite Weightlifters.
Originally Posted by Greg Davis
I can't seem to come across any good info on the ideal time to take a vitamin C supplement..
If I'm looking to use it to help buffer cortisol/stress.. any thoughts on whether or not it would be absorbed properly if taken with a higher carb (PWO) meal?
Journal of Strength & Conditioning Research. 12(3):179-184, August 1998.
Marsit, Joseph L. 1; Conley, Michael S. 1; Stone, Michael H. 1; Fleck, Steven J. 2; Kearney, Jay T. 2; Schirmer, Ginger P. 3; Keith, Robert L. 3; Kraemer, William J. 4; Johnson, Robert L. 1
This study examined the short-term effects of the daily ingestion of ascorbic acid (1,000 mg/d) on resting and postexercise concentrations of serum Cortisol (Cort), testosterone (T), and the testosterone:Cortisol ratio (T:C) in 17 junior elite weightlifters. Subjects were assigned to one of two groups equated for body mass and weightlifting total. GAA received ascorbic acid each day. GP received a placebo similar in appearance to the ascorbic acid supplement. Subjects participated in a competitive, high volume, high intensity training program. Blood (fasting) was drawn 5 times: baseline, Day 16 preexercise, immediate post, 1-hr post, and 24 hrs post. Exercise consisted of typical large-muscle-mass exercises familiar to all subjects and was standardized based on relative intensity (% 1-RM). ANCOVA, using preexercise ascorbic acid concentrations as the covariant, showed a significant difference (p = 0.02) for Cortisol at 24 hrs post.
Testosterone or the T:C ratio did not differ between groups at any point.
(C) 1998 National Strength and Conditioning Association