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Purpose: To investigate the impact of pregnancy on female sexual function., Methods: An analytical, cross-sectional study was conducted on 181 non-pregnant and 177 pregnant women aged 18 to 45 years. The study included premenopausal, sexually active women with a steady partner and excluded those taking antidepressants or with a diagnosis of depression. Eleven of these women (6.2%) were in the first trimester, 50 (28.2%), in the second trimester and 116 (65.5%), in the third trimester of pregnancy. The evaluation consisted of an interview in which the Female Sexual Function Index (FSFI) was applied. The data were analyzed using the Statistical Package for the Social Sciences (SPSS) software, version 16.0. The nonparametric Mann-Whitney test was used to compare the mean FSFI values of pregnant and non-pregnant women., Results: Sexual dysfunction was 40.4% among pregnant women and 23.3% among non-pregnant women, with a significant difference between the scores of the studied groups (p=0.01). The difference in the mean global FSFI values between the groups was also significant (p<0.0001). There were significant differences between pregnant and non-pregnant women regarding desire (p<0.0001), excitation (p=0.003), lubrication (p=0.02), orgasm (p=0.005) and satisfaction (p=0.03). The same was not observed regarding pain., Conclusion: We conclude that pregnancy negatively influences female sexual function, particularly the desire and excitement domains, revealing the importance of addressing the issue by professionals dealing with pregnant women.

Objectives: To review the use, benefits and adverse effects of the main dietary supplements consumed by adolescents., Sources: The literature review was performed using MEDLINE and LILACS databases (1997-2008). We analyzed 377 articles, and 52 of them were selected as references., Summary of the Findings: Consumption of dietary supplements is widely spread among adolescents. This habit has often been detected in pediatric and adolescent medicine clinics. Most of the time, the use of supplements is motivated by the search of the ideal body. Other reasons for this practice are: attempt to compensate for an inadequate diet, increase immunity, prevent diseases, improve athletic performance and overcome their own athletic limits. The dietary supplements most frequently used and for which there is little evidence of beneficial effects in healthy adolescents are: proteins, amino acids, beta-hydroxy-beta-methylbutyrate, microelements, carnitine, creatine, vitamins, caffeine, and bicarbonate. This dietary supplementation may be beneficial for competitive athletes who do not have a balanced diet after a specific dietary deficiency has been detected., Conclusion: The unrestrained consumption of dietary supplements should be avoided, since, besides the lack of evidence that such practice will lead to improvement of performance, it exposes adolescents to several adverse effects. Balanced nutrition, with intake of essential energy and nutrients is usually enough to achieve good athletic performance. The use of dietary supplements must be allowed only for selected cases in which specific nutritional deficiencies are identified.