Dietetics and Clinical Nutrition Commons^™

Vitamin D Deficiency In The United States: How Common Is It?, Christine N. Arnold

Undergraduate Honors Capstone Projects

Background: Vitamin D deficiency in the US is more prevalent than before estimated. Given the numerous roles vitamin D plays in the body, it is becoming apparent that the need for adequate intake is vital. It is generally accepted that adults require 1,000 IU per day.

Methods: Electronic searches were conducted using Google Scholar and Elsevier databases. Search terms included “vitamin D deficiency”, “vitamin D deficiency US”, and “vitamin D screening”. Databases were reviewed for prevalence of vitamin D deficiency in the US.

Results: Populations at high risk for deficiency include the elderly, adolescents, people with darker skin, those who …

Evaluation And Validation Of Bodpod Body Scan Method As Compared To Dexa, Effect Of Calcium And Caloric Intake In Female Collegiate Track Athletes, Jennifer Day

Undergraduate Honors Capstone Projects

Purpose: This study was conducted to evaluate the validity of the BODPOD air displacement plethysmography as compared to the DEXA (dual energy x-ray absorptiometry) in testing body fat percentages in female collegiate runners. The link between caloric intake and body fat distribution, as well as the link between calcium and vitamin D intake and bone density was also evaluated.

Methods: Participants were 8 female collegiate athletes from the USU track team. A 3-day diet history was obtained from each participant and body fat test were performed using both the BODPOD and the DEXA scans within a four month period due …