Publications by authors named "Alfredo Mejia"

The primary cause of death worldwide is heart disease and the most common type of heart disease is coronary artery disease. While coronary artery disease is treated with medications, it responds to lifestyle interventions. A low-fat plant-based diet was designed for reversing coronary artery disease and it is effective in reversing the disease.

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Background: Greenhouse gas emissions (GHGEs) are a major consequence of our dietary choices. Assessments of plant-based compared with meat-based diets are emerging at the intersection of public health, environment, and nutrition.

Objectives: The objective was to compare the GHGEs associated with dietary patterns consumed in a large population across North America and to independently assess mortality according to dietary patterns in the same population.

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This cross-sectional study assessed: (a) awareness and knowledge of federal dietary tools (MyPyramid, Food Guide Pyramid (FGP), and food labels (FL)), and (b) the influence of acculturation and state of residence on FGP knowledge (FGPK) indicators among low-income Latina WIC participants (N = 479) living in Connecticut, Ohio, Texas, and California. Participants were familiar with FGP but only 37% recognized MyPyramid. FGPK was highest for fruits (71%) and lowest for the 'breads and cereals' group (12%).

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Background: Increased consumption of n-3 (omega-3) fatty acids decreases the incidence of coronary heart disease (CHD).

Objective: The objective was to determine whether walnuts (plant n-3 fatty acid) and fatty fish (marine n-3 fatty acid) have similar effects on serum lipid markers at intakes recommended for primary prevention of CHD.

Design: In a randomized crossover feeding trial, 25 normal to mildly hyperlipidemic adults consumed 3 isoenergetic diets ( approximately 30% total fat and <10% saturated fat) for 4 wk each: a control diet (no nuts or fish), a walnut diet (42.

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Background: The primary objective was to estimate the lifetime prevalence of abortion and the secondary objective was to describe the use of contraceptive methods among female sex workers (FSW) in Bogota, Colombia.

Study Design: A cross-sectional survey was conducted among FSW. Information on sociodemographic characteristics, contraceptive methods, number of abortions, reasons for abortions and sexual practices was collected.

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Objective: To study the epidemiology of Treponema pallidum (syphilis) among female sex workers (FSW) in Santa Fe de Bogotá, Colombia.

Design: A cross-sectional study was conducted. Participants were interviewed using a standardized questionnaire, which collected socio-demographic characteristics and risk behavior information.

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