Brett has a condition that makes it difficult for him to absorb dietary fat. Explain why he is also prone to infections
Brett's inability to absorb fat also results in malabsorption of fat-soluble vitamins, compromising his vitamin A status. There are two reasons why this increases Brett's susceptibility to infections. First, he needs adequate vitamin A to help his body maintain protective barriers, such as the skin and lining of the intestinal and respiratory tracts, most of which are epithelial tissue. When vitamin A is not available, these important tissues break down, allowing bacteria and viruses to enter the body and cause infection.
Second, he needs vitamin A to produce functional lymphocytes as well as antibodies. Without lymphocytes and antibodies, he cannot mount an effective immune response when exposed to pathogens and is thus prone to infections.
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All of the following are true regarding food preferences EXCEPT:
1.they are largely learned. 2.there are over 80 genes that help people taste bitter foods. 3.people with a high sensitivity to bitter tastes tend to like cabbage and Brussels sprouts. 4.a genetic tendency to avoid bitter vegetables may be linked to disease development.
Oxalic acid, a component of fiber, can inhibit the absorption ofÂ
A. protein. B. thiamin. C. calcium. D. vitamin A.
_____ is a hormone secreted by the small intestine that provides powerful satiety cues
A) Erythropoietin B) Melatonin C) Adiponectin D) Cholecystokinin
What are the benefits of using theoretical behavior change theories and models?