@article{jfnr20261491,
author={{Li, Xuan and Watabe, Kazuya and Sakashita, Maya and Tamura, Aoi and Ikeda, Wako and Shirako, Saki and Sato, Kenji and Kim, Young-il},
title={Effects of a Multi-Ingredient Dietary Supplement on Sexual Well-Being in Healthy Men: A Retrospective Analysis of a Randomized, Double-Blind, Placebo-Controlled Crossover Product-Monitoring Study},
journal={Journal of Food and Nutrition Research},
volume={14},
number={9},
pages={185--194},
year={2026},
url={https://pubs.sciepub.com/jfnr/14/9/1},
issn={2333-1240},
abstract={The present study retrospectively evaluated data from a product-monitoring test of a multi-ingredient dietary supplement containing egg white hydrolysate (EWH) as a principal bioactive component, together with maca extract, zinc, and other functional ingredients. The test involved healthy adult men aged 20¨C60 years and used a randomized, double-blind, placebo-controlled crossover procedure. Participants received the investigational product and placebo during separate two-week periods, with a one-week washout between periods. Sexual well-being and physical fatigue were assessed using self-reported visual analog scale (VAS) questionnaires after one and two weeks of each monitoring period. Nineteen participants entered the randomized monitoring sequences, and complete data from 16 participants were available for the principal analysis. Compared with placebo, use of the investigational product was associated with significantly higher scores for multiple endpoints of sexual well-being, including morning erection quality, erection hardness, erection maintenance, sexual desire, and sexual satisfaction. Favorable differences were also observed in fatigue-related measures. No serious adverse events were recorded during the monitoring periods. Overall, retrospective analysis of this product-monitoring dataset identified consistent treatment-associated patterns in self-reported sexual well-being, supporting further prospective evaluation of this EWH-containing multi-ingredient formulation.},
doi={10.12691/jfnr-14-9-1}
publisher={Science and Education Publishing}
}