Lard contains:
45% monounsaturated fat
39% saturated fat, of which 35% is stearic acid
16% polyunsaturated fat.
info above from the USA national nutritional database
Stearic acid metabolises to oleic acid, which raises HDL and lowers LDL simultaneously.
Saturated fats raise both.
Polyunsaturated lowers LDL; has no meaningful affect on HDL
souce: Mattinson & Grundy 1985
Mattinson F H and Grundy, S M. Comparison of Effects of Dietary Saturated, Monounsaturated and Polyunsaturated Fatty Acids on Plasma Lipids and Lipoproteins in Man. Journal of Lipid Research Feb 1985; 26(2): 194-202
Lard is a much maligned fat and is not quite as "dangerous" as it's made out. Even olive oil contains 16% saturated fat!
Viv 8)