Helen - You *cannot* lower blood cholesterol levels except by using drugs. Your body will manufacture cholestrol to make up any deficiency in your diet. Chol. is an essential building block in cell walls. It is also a building block for Vitamin D3, various hormones, & bile acids. In all probability, less than 20% of your chol. needs are supplied by what you eat. The rest is manufactured by your body, which will make up any shortfall (if it can).

US studies have shown that heart disease worsened in those that switch from butter to polyunsat. margarine. Butter has a two line list of ingredients (cream & salt), a typical margarine runs to over 20. They're not natural ingredients, & they're not 'naturally' treated, for the most part either!

Polyun. fats are linked to an increase in cancer. Low blood chol. is linked not only to a greater risk of cancer, but also to a greater risk of strokes, & to greater child mortality & incidence of Alzheimer's.