2.4. Experimental Supplements
The experimental supplements contained purified safflower (High-Linoleic Safflower Oil; The Nisshin OilliO Group, Ltd., Tokyo, Japan) and olive oils (Olive oil RR; Summit oil mill, Chiba, Japan) or LCPUFAs + LZ-containing oils. LCPUFAs + LZ-containing oils were prepared by mixing ARA-containing oil (SUNTGA40S; Nissui Corporation, Tokyo, Japan), DHA/EPA-containing oil (DD-oil; Nissui Corporation, Tokyo, Japan) and LZ-containing oil (FloraGLO; DSM Japan K.K., Tokyo, Japan). 