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Dietary Supplements: A Framework for Evaluating Safety (2005)
Institute of Medicine (IOM)

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. "Appendix K: Protoype Focused Monograph: Review of Anti-Androgenic Risks of Saw Palmetto Ingestion by Women." Dietary Supplements: A Framework for Evaluating Safety. Washington, DC: The National Academies Press, 2005.

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Dietary Supplements: A Framework for Evaluating Safety

of LESP per day in 1 to 3 divided doses taken orally (or rectally in a few trials). The duration of ingestion of LESP varied from several weeks to several years.

II. SAFETY INFORMATION

A. Human Safety Data

1. Historical use

Historical use of saw palmetto for symptoms of BPH has been common in Asia and in native cultures in North America for centuries (Lowe, 2001; Wilt et al., 1998). Of the 30 plants known to have been used historically in phytotherapy for symptoms of BPH, saw palmetto has been the most widely used (Wilt et al., 1998). Historical uses were limited to saw palmetto in the form of the whole fruit, teas, aqueous extracts, and tinctures. They did not include lipid/sterol extracts of saw palmetto fruit such as those available in the current market.

In American Indian cultures, specifically in Florida, saw palmetto fruit was considered useful as a diuretic, sedative, aphrodisiac, nutritional tonic (due to the high oil content of the fruit), and to create a soothing vapor used as an expectorant. As American and European cultures learned about American Indian phytotherapy, the saw palmetto fruit came to be used to improve sexual vigor; to increase sperm production; as a mild diuretic; to relieve urinary difficulty, such as urgency-to-urinate and nocturnal enuresis in both men and women; and to improve urogenital disorders in women, such as ovarian enlargement and dysmenorrhea (Gennaro, 2000; Wilt et al., 1998).

Typically, the dried, ripe fruit is used for medicinal purposes. At times, the fresh fruit may be used; the safety of this practice has not been evaluated.

2. Adverse effects

Clinical trials: The clinical data for saw palmetto is primarily generated on male subjects. The one trial in women is in Table B, but there is no indication that pregnant women were included in this trial.

Spontaneous adverse event reports: Spontaneous reports related to possible effects in utero did not exist.

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452
Front Matter (R1-R20)
Executive Summary (1-18)
1 Introduction and Background (19-42)
2 Approaches Used by Others and Existing Safety Frameworks (43-84)
3 The Framework (85-125)
4 Categories of Scientific Evidence--Human Information and Data (126-155)
5 Categories of Scientific Evidence--Animal Data (156-174)
6 Categories of Scientific Evidence--Information About Related Substances (175-216)
7 Categories of Scientific Evidence--In Vitro Data (217-234)
8 Interactions (235-246)
9 Vulnerable Groups and Prevalance of Use (247-252)
10 Scientific Principles for Integrating and Evaluating the Available Data (253-268)
11 Applying the Framework: Case Studies Using the Prototype Safety Monographs (269-291)
12 Factors Influencing Use of the Safety Framework (292-296)
13 Findings and Recommendations (297-306)
Appendix A: Existing Frameworks or Systems for Evaluating the Safety of Other Substances (307-315)
Appendix B: Scope of Work and Comments to Initial July 2002 Framework (316-321)
Appendix C: Plant Family Information (322-355)
Appendix D: Chaparral: Prototype Monograph Summary (356-362)
Appendix E: Glucosamine: Prototype Monograph Summary (363-366)
Appendix F: Melatonin: Prototype Monograph Summary (367-371)
Appendix G: Chromium Picolinate: Prototype Monograph Summary (372-375)
Appendix H: Saw Palmetto: Prototype Monograph Summary (376-379)
Appendix I: Shark Cartilage: Prototype Monograph Summary (380-384)
Appendix J: Prototype Focused Monograph: Review of Liver-Related Risks for Chaparral (385-449)
Appendix K: Protoype Focused Monograph: Review of Anti-Androgenic Risks of Saw Palmetto Ingestion by Women (450-477)
Appendix L: Acknowledgements (478-480)
Appendix M: Biographical Sketches of Commitee Members (481-488)
Index (489-506)