Studies related to Frequency of Intercourse and Vitamin C

High-dose Ascorbic Acid Increases Intercourse Frequency And Improves Mood: A Randomized Controlled Clinical Trial

Effect Increase
Trial Design Double blind
Trial Length 1-2 Weeks
Number of Subjects 81
Sex Both Genders
Age Range 18-29, 30-44
Notes for this study:
Supplementation of 3,000mg time released Vitamin C daily for two weeks has been noted to, in otherwise healthy adults, to decrease depression symptoms on the BDI (down 1.56 points from 4.8; scale is a 0-17 scale) and increase intercourse frequency (from 4 times a month to 14; placebo dropped from 6 to 4). There was no influence on frequency of masturbation.
Funding issues for this study:
Funding by GlaxoSmithKline, appears to be involved in conducting the study as well