A researcher wants to identify lifestyle factors that increase the risk of stomach cancer in men. His study design involves enrolling 250 adult men who have stomach cancer, and 250 men who are cancer-free, but have similar characteristics and backgrounds as the men who have stomach cancer. The researcher collects and analyzes information about each participant's lifestyle. Based on this information, what kind of study is the researcher conducting?
A. In vivo study
B. Cohort study
C. Experimental study
D. Case-control study
Answer: D
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Kwashiorkor describes a condition of severe emaciation from energy deficiency with chronic wasting of fat, muscle, and other tissues, also known as starvation
a. True b. False Indicate whether the statement is true or false
During Rhonda's freshman year of college she experienced many environmental changes which influenced her diet and lifestyle. Rhonda was fearful of gaining "the freshman fifteen" and also had a limited food budget. To save money and avoid gaining unwanted weight she decided that she would only eat fruit for breakfast and salads for lunch and skip dinner. She soon found herself getting very hungry
in the evenings and would then overeat food from the vending machines and cheap fast foods. She often snacked on cookies, fried foods, pasta, ice cream, and diet soda. As the school year progressed Rhonda had recurrent bouts of respiratory illness and felt chronically fatigued. Upon visiting the college health service the doctor diagnosed her with iron-deficiency anemia and speculated that in addition to not getting enough iron she was probably not getting enough protein or B-vitamins. By the end of the school year Rhonda not only had overall poor health but she had also gained a significant amount of weight despite not eating dinner and overall under-consumption of nutrients. Rhonda has registered for a nutrition class in the fall and hopes to learn how to better manage her diet and weight during her sophomore year. In general what type of a diet should Rhonda follow to lose the weight gained during her freshman year? A) She should follow a diet high in animal protein and low in fruit and grains. B) She should follow a diet high in phytochemicals and antioxidants which is also supplemented with a multi-vitamin. C) She should follow a diet which provides a variety of nutrient-dense foods and adequate calories. D) She should follow a diet which includes plenty of energy-dense, empty-calorie foods.
A patient needs assistance with buying food after he is discharged from the hospital. Which professional should be consulted?
a. pharmacist b. social worker c. medical doctor d. nurse e. speech-language pathologist
Compared to breast milk or iron-fortified formula, cow's milk is higher in calcium and lower in vitamin C, which results in:
a. decreased digestibility. b. decreased iron absorption. c. elevated levels of phosphorus. d. improved bone development.