Albumin is the most abundant plasma protein, about 50% of the total
plasma protein in humans. The protein, with an Mr of 66,200, contains
17 disulfide bridges.

Albumin carries free fatty acids through the bloodstream. Each molecule of albumin can bind up to 10 molecules of free fatty
acid, although the actual amount bound is usually far lower. Fatty
acids are released from albumin and taken up by tissues largely
by passive diffusion, so that fatty acid uptake into cells is
driven primarily by concentration (Figure 18.3).