Health experts have long advised their patients to make dietary changes that reduce their LDL ‘bad’ cholesterol while increasing their HDL ‘good’ cholesterol. However, studies have shown a bit of paradox in the sense that raising HDL cholesterol doesn’t necessarily reduce heart disease risk — and the reason, according to the latest research, may be problems associated with big versus small cholesterol particles. Put simply, ‘bad’ LDL cholesterol is the kind that causes a build-up in the arteries, putting someone at risk of heart disease and related issues. ‘Good’ HDL cholesterol, meanwhile, shuttles cholesterol from the arteries to the liver for elimination.