Explain the Effect on serum Proteins during pregnancy?

Total serum protein gradually decreases, along with a sharp decline in albumin. There is reduction in serum albumin along with the expanded plasma volume. Serum levels of vitamin C, folic acid, vitamin B6 and vitamin B12 follow the decline of serum albumin levels.

Other Nutrients: Fat-soluble vitamin concentrations, especially carotene and vitamin E are increased by nearly 50%. Vitamin A levels, however, remain unchanged.  Progressive increase is seen in serum triglycerides, cholesterol and free fatty acids.  These are brought about by increased concentrations of oestrogens, progesterone and placental hormones.