APOB and malnutrition: Specific subfractions of (V)LDL with low levels of (free) cholesterol and phospholipids, low particle number (Cholesterol Subfraction of LDL-1 [L1CH], Free Cholesterol Subfraction of LDL-1 [L1FC], Phospholipids Subfraction of LDL-1 [L1PL], Apo-B Subfraction of LDL-1 [L1AB], LDL-1 Particle Number [L1PN], Free Cholesterol Subfraction of LDL-4 [L4FC], and Free Cholesterol Subfraction of VLDL-5 [V5FC]), and high triglyceride levels of one of the LDL subfractions (L5TG), were indicative of a high risk of malnutrition.