LDL Peak Size reports the dominant diameter of LDL particles in Angstroms. Higher values indicate Pattern A (large, buoyant, less atherogenic particles); lower values indicate Pattern B (small, dense, more atherogenic particles).
Peak LDL size is one of the clearest single-value indicators of whether your lipid profile is metabolically healthy. The shift from Pattern B to Pattern A with lifestyle intervention often precedes changes in LDL-C or ApoB and reflects real improvement in cardiovascular architecture.
Optimal LDL Peak Size (ION): 222-240 Angstrom.
Typically re-tested every 12 weeks.