Publications by authors named "Alan M Preston"

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Examination of three ketogenic diet plans: Congruency with the Healthy Eating Index (HEI) and consistency of the day-to-day HEI scores for a period of 1 week.
Alan M Preston

Nutr Health· December 2025

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The Healthy Eating Indices of Puerto Rican Families, 1961 to 1966: A Retrospective Study, Calculated using Data from Previous Nutritional Surveys.
Alan M Preston

P R Health Sci J· September 2025

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Nutritional Status of Puerto Rican Families in 1966 - What can be learned from Retrospective Surveys?
Alan M Preston

P R Health Sci J· September 2025

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Macronutrient Adequacy of a Mediterranean-type Meal Examined at Recommended and Below Recommended Energy Values.
Alan M Preston, Priscilla K Clayton

J Food Sci Nutr Res· May 2023

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High Carbohydrate vs High Fat Diets: Which is Preferable for Long-term Use?
Alan M Preston, Cindy A Rodriguez, Marianna M Preston

J Food Sci Nutr Res· April 2023

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Vitamin D Content in Milk of the Rhesus Monkey.
Alan M Preston, Andrew J Makowski, Melween I Martinez

P R Health Sci J· March 2021

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Toward a Better Understanding of Diabetes Risk.
Alan M Preston

P R Health Sci J· March 2020

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Effect of Season on 25-OH Vitamin D in Serum of Rhesus Monkeys Housed in Puerto Rico.
Alan M Preston, Jose Rodriguez-Orengo, Roy Armstrong, Lorena Gonzalez-Sepulveda, Elizabeth Maldonado-Maldonado

P R Health Sci J· September 2018

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Effect of Housing Type on 25 OH Vitamin D in Serum of Rhesus Monkeys.
Alan M Preston, José Rodríguez-Orengo, Lorena González-Sepúlveda, Sylvette Ayala-Peña, Elizabeth Maldonado-Maldonado

P R Health Sci J· June 2018

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Toward a Uniform Serving Size and its Interpretation.
Alan M Preston

P R Health Sci J· March 2017

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Number and Type of Meals consumed by Children in a Subset of Schools in San Juan, Puerto Rico.
Alan M Preston, Natalie Rodríguez-Quintana

P R Health Sci J· June 2015

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Assessment of the national school lunch program in a subset of schools in San Juan, Puerto Rico: participants vs. non-participants.
Alan M Preston, Heidi Venegas, Cindy A Rodríguez, Rose M Vélez-Rodríguez

P R Health Sci J· March 2013

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Validation and reproducibility of a semi-quantitative food frequency questionnaire for use in Puerto Rican children.
Alan M Preston, Cristina Palacios, Cindy A Rodríguez, Rose M Vélez-Rodríguez

P R Health Sci J· June 2011

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Plasma ascorbate in a population of children: influence of age, gender, vitamin C intake, BMI and smoke exposure.
Alan M Preston, Cindy Rodríguez, Cynthia E Rivera

P R Health Sci J· June 2006

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Blood and nutritional profiles of an individual consuming a high protein-low fat diet.
Alan M Preston, Ricardo González Santoni, Cindy Rodríguez

P R Health Sci J· December 2003

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Influence of environmental tobacco smoke on vitamin C status in children.
Alan M Preston, Cindy Rodriguez, Cynthia E Rivera, Hardeo Sahai

Am J Clin Nutr· January 2003

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Plasma homocysteine concentrations in a population of rhesus monkeys (Macaca mulatta): reference ranges and accompanying plasma concentrations of folate and vitamin B12.
Alan M Preston, Fred B Bercovitch, Braulio D Jimenez, Jose F Rodriguez Orengo, Wilfredo Delgado Morales

Contemp Top Lab Anim Sci· January 2002

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