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Titre : | Examining the effects of calorie restriction on testosterone concentrations in men : a systematic review and meta-analysis (2022) |
Auteurs : | Stephen J. Smith ; Shaun Y. M. Teo ; Adrian Lopresti ; Brody Heritage ; Timothy J. Fairchild |
Type de document : | Article |
Dans : | Nutrition reviews (Vol. 80, n°5, May 2022) |
Article en page(s) : | p. 1222-1236 |
Note générale : | https://doi.org/10.1093/nutrit/nuab072 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Diabète de type 2 ; Hommes ; Hormones sexuelles stéroïdiennes ; Obésité ; Restriction calorique ; Testostérone |
Résumé : |
Context
Testosterone concentrations decline with age, and lower testosterone concentrations are associated with several morbidities, including sexual dysfunction, obesity, type 2 diabetes mellitus (T2DM), and metabolic syndrome. Objective Because dietary habits play a critical role in weight regulation and T2DM management, the aim of this systematic review and meta-analysis was to summarize and critically evaluate the evidence from randomized controlled trials to determine the effects of calorie restriction (CR) on testosterone concentrations in men. Data Sources A literature search was conducted across 4 databases, from their inception until March 2020. Data Extraction The screening and data extraction were completed by 2 authors independently, and in a blinded manner, according to a priori inclusion and exclusion criteria. Data Analysis Of the 4198 studies identified from the initial search, 7 randomized controlled trials were included for data extraction. Significant increases in total testosterone concentrations were reported in 3 of 4 studies in which CR was examined with overweight or obese men, compared with the control groups. Significant decreases in total testosterone concentrations were reported in 2 of 3 studies in which the effects of CR were examined with normal-weight, healthy men, compared with the control groups. In all 4 studies that examined the effect of CR on sex hormonebinding globulin concentrations, the intervention significantly increased sex hormonebinding globulin concentrations compared with that of the control groups irrespective of body composition. Conclusion This systematic review and meta-analysis provide some evidence that CR affects testosterone concentrations in men and this effect depends on their body mass index. PROSPERO registration no. CRD42020173102 |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://academic.oup.com/nutritionreviews/article/80/5/1222/6382256 |