Response to an Article in German Journal FITBOOK

The article entitled: “Amazing effect of vitamin D supplementation on metabolism” discusses a recent study that according to the author of the FITBOOK article suggests supplementing 3320 IU of Vitamin D per day. Let’s clarify first that the study entitled: “Modifiers of the Effects of Vitamin D Supplementation on Cardiometabolic Risk Factors: A Systematic Review and Meta-Analysis” has been published in the journal of Engineering and is a meta-analysis, not a new research study.