In this study, 66 clinical-anthropometric and biochemical subjects were characterized. The factors with the greatest influence identified were: triglycerides (TG), very low density lipoproteins (VLDL), low density lipoproteins (LDL) and total cholesterol (TC); Serum Mg (SMg) correlated with TG (Rho = 0.270, p = 0.028), TC (Rho = 0.349, p = 0.004), LDL (Rho = 0.251, p = 0.042) and VLDL (Rho = 0.270, p = 0.028 ), SMg correlates with TC adjusted for body mass index (BMI), glucose and age (Rho = 0.303, p = 0.016); Subjects without a family history of cardiovascular disease (FH_ECV) had a higher intake of Mg (p = 0.023) than those with FH_ECV and men had a higher intake of Mg than women (p = 0.005). In conclusion, the factors with the greatest influence on CV risk are TG, LDL, VLDL and TC, which correlate positively and significantly with serum magnesium, TC still adjusted for BMI, glucose, and age; in addition, magnesium intake is higher in subjects without FH_ECV and in men.