The endoplasmic reticulum also helps transport proteins, fats, and other materials to specific sites within the cell or to the cell surface.

Gemfibrozil is used along with a proper diet to help lower fats (triglycerides) and raise "good" cholesterol (HDL) in the blood.

It can help lower "bad" cholesterol and fats (e.g., LDL, triglycerides) and raise "good" cholesterol (HDL).

They work in a variety of ways, mostly as "helpers;" for example, many of the B vitamins help the body use protein, fats, and carbohydrates.