Research Article

Adherence to the Mediterranean Diet and Circulating Levels of Sirtuin 4 in Obese Patients: A Novel Association

Table 4

Total energy and daily macronutrient/micronutrient intake of obese individuals grouped on the basis of the adherence to the Mediterranean diet.

ParametersObese
Low adherence MD
Obese
Average adherence MD
value

Total energy (kcal)3473.1 ± 271.92822.3 ± 287.7<0.001
Protein (% of total kcal)14.0 (11.0–18.0)16.0 (12.0–20.0)0.045
INQ protein0.98 ± 0.031.08 ± 0.07<0.001
Carbohydrate (% of total kcal)56.0 (53.0–61.0)57.0 (54.0–60.0)0.469
INQ carbohydrate0.97 ± 0.031.03 ± 0.03<0.001
 Complex (% of total kcal)28.8 ± 5.531.8 ± 4.00.049
 Simple (% of total kcal)27.8 ± 4.525.2 ± 4.00.055
Fat (% of total kcal)29.0 (28.0–30.0)27.0 (25.0–30.0)<0.001
INQ Fat0.96 ± 0.031.06 ± 0.05<0.001
 SFA (% of total kcal)11.5 (8.3–15.7)9.0 (1.7–10.3)<0.001
 MUFA (% of total kcal)12.8 (11.2–14.3)15.7 (14.5–17.7)<0.001
 PUFA (% of total kcal)3.3 (1.8-9.3)2.9 (1.8–5.9)0.191
  n-6 PUFA (g/day)10.9 (4.8–34.7)5.7 (0.4–15.4)0.001
  n-3 PUFA (g/day)2.2 (0.6–2.8)3.4 (1.3–12.4)<0.001
  n-6/n-3 PUFAs ratio5.9 (2.1–20.8)1.6 (0.1–11.8)<0.001
Cholesterol (mg/day)335.9 ± 42.2323.0 ± 32.20.262
Fiber (g/day)20.4 (8.2–25.0)24.0 (10.1–28.1)0.021
Retinol Eq (μg/day)756.5 (451.0–1990.0)1249.0 (527.0–2012.0)0.001
Vitamin C (mg/day)71.0 ± 26.3159.0 ± 44.7<0.001
Vitamin D (μg/day)1.6 ± 0.62.1 ± 0.70.014
Vitamin E (mg/day)10.5 ± 1.616.4 ± 2.3<0.001
Iron (mg/day)8.2 ± 1.910.6 ± 2.90.005
Selenium (μg/day)15.2 (9.0–33.9)22.1 (8.7–42.5)0.003
Zinc (mg/day)8.8 ± 1.510.4 ± 1.3<0.001
MAI1.09 ± 0.343.18 ± 0.81<0.001

Obese individuals with low MD adherence had a higher energy intake, a higher percentage of energy from lipids, mainly SFA and PUFA, and a lower fiber intake than average adherers. Low adherers consumed lower complex carbohydrates and lower antioxidant intake than average adherers, including n-3 PUFA, A, C, and E vitamins, and micronutrients. Results are expressed as mean ± standard deviation or as median plus range according to variable distributions evaluated by Kolmogorov-Smirnov test. Differences between groups were analyzed by unpaired Student’s t-test or Wilcoxon signed-rank test, when appropriate. value indicates comparison between those with low adherence versus those with average adherence to the MD. A value in bold type denotes a significant difference (). MD: Mediterranean diet; INQ: index of nutritional quality; SFA: saturated fatty acids; MUFA: monounsaturated fatty acids; PUFA: polyunsaturated fatty acids; MAI: Mediterranean adequacy index.