Improvement of serum lipids was supported by significant reductions of very low-density lipoprotein cholesterol ( Chlorella -11 % ; placebo 11.8 % ; P = 0.006 ) , apolipoprotein B ( Chlorella -1.5 % ; placebo 1.7 % ; P = 0.044 ) , non high-density lipoprotein ( Chlorella -2.6 % ; placebo -0.5 % ; P = 0.032 ) , and high-density lipoprotein/triglycerides ( Chlorella 4.0 % ; placebo -9.5 % ; P = 0.023 ) , suggesting an inhibitory effect of Chlorella on the intestinal absorption of dietary and endogenous lipids .