Which three factors lead to vitamin B12 malabsorption?
What will be an ideal response?
Factors reduce vitamin B12 absorption include:
a.inadequate HCl which impairs the body's ability to begin breaking apart the vitamin B12–protein complex in the stomach;
b.insufficient pancreatic enzymes to hydrolyze the B12–R protein complex in the small intestine; gastric bypass surgery; and
c.pernicious anemia, a form of macrocytic anemia characterized by a lack of sufficient intrinsic factor to release the B12 in foods. Inadequate intrinsic factor may be caused by either gastritis or an autoimmune reaction in which the body's immune system attacks the parietal cells.
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Certain organs and tissues use ________ to send messages to target cells.
A. enzymes B. hormones C. lacteals D. bonds
Do you think Sherry and Bill made the right decision by putting James on blood cholesterol lowering medication at such as young age?
Bariatric surgery is advised for people who
A. have tried other weight loss treatments, including prescription medication, for at least five years but have not been able to lose weight or maintain weight loss. B. have been diagnosed with both type 2 diabetes and hypertension. C. have a BMI greater than or equal to 30. D. have a BMI greater than or equal to 40.
Of the following foods, which is the richest source of riboflavin?
A. Red delicious apples B. Tomatoes C. Corn oil margarine D. Fat-free milk