The influence of vitamin D supplementation on IGF-1 levels in humans: A systematic review and meta-analysis.

CONCLUSION: The main results indicate a non-significant increase in IGF-1 following vitamin D supplementation. Additionally, vitamin D dosages of <1000 IU/day and intervention durations of <12 weeks significantly raised IGF-1 levels. PMID: 31816443 [PubMed - as supplied by publisher]

https://www.ncbi.nlm.nih.gov/pubmed/31816443?dopt=Abstract

Source: Ageing Research Reviews - December 5, 2019 Category: Genetics & Stem Cells Authors: Varkaneh HK, Rinaldi G, Hekmatdoost A, Fatahi S, Tan SC, Shadnoush M, Khni V, Mousavi SM, Zarezadeh M, Salamat S, Bawadi H, Rahmani J Tags: Ageing Res Rev Source Type: research