When we think of digestion we usually think of the
stomach, small intestines, and large intestines – often collectively referred
to as “the gut.” Playing a key role behind the scenes are the liver, gall
bladder, and pancreas.
The liver is one of the most critical organs in the
body. Once the liver shuts down the body
is pretty much finished. Among its
hundreds or perhaps thousands of jobs are: cleaning/purifying the blood and
removing toxins, fat metabolism, building proteins/amino acid synthesis, and for
purposes of digestion – manufacturing bile.
After being made in the liver bile is stored and concentrated in the
gall bladder.
The acidic food passing from the stomach to the
small intestine stimulates the pancreas and gall bladder. Foods high in fat have to be emulsified. This is what bile does. It is a “degreaser”. If the oil is not degreased, the enzymes
cannot get to the food.
The body makes 1-6 cups of bile per day. Bile has pH
of 7.8 which is slightly alkaline. Gall
bladder contractions send bile into the small intestines. Bile that stays in the gall bladder gets
reconstituted and thickens and can eventually form stones. This thickening is
referred to as biliary stasis which prevents the bile from flowing to the small
intestines. One of the problems in
eating a low fat diet is by consuming less fat there is less need for bile. This increases the likelihood of biliary
stasis.
Bile influences the color of stools. Light colored stools indicate liver and gall
bladder need help. Stools should be
brown. Any other color is suspect.
The pancreas secretes hormones (insulin and
glucagon) and enzymes thus it is often overworked. We have previously discussed
the key role that pancreatic enzymes play in the small intestines. We will later discuss the importance of
insulin and glucagon.
Bernard Rosen, PhD is a Nutrition Consultant and
Educator. He works with individuals, groups, and at corporations to create
individualized nutrition and wellness programs. He has offices in Thiensville
and Glendale, WI. To learn more or to schedule an appointment, e-mail at bernie@brwellness.com, call (262)
389-9907 or go to www.brwellness.com.
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