The mom's diet goes through her digestive tract, as it normally would. Nutrients are absorbed some through the stomach, and more so through the small intestine. They are broken down into their smallest components, and Mom's blood reaches the baby <span>through the blood vessels in the placenta and umbilical cord.</span>
The best test would be a BMI. Hydrostatic weighing would just find their weight and wouldn't tell the doctor anything about the specific amount of fat on the body. There is no such thing as an MRK, and the Caliper test is a personality test. I hope this helps!
