Three of these markers indicated increased risk for MetS after calculations of the pooled odds ratios: FTO-rs9939609 (OR = 1.49, 95% CI: 0.96–2.32); LEP-rs7799039 (OR = 1.85, 95% CI: 1.37–2.5); and SERPINA12-rs2236242 (OR = 1.65, 95% CI: 1.21–2.24), Figure 2. This evidence concerns the gene FTO and metabolic syndrome.