The main objective of the study is to demonstrate that the inclusion of eggs to a plant-based diet will not increase the risk for heart disease but will increase the concentration of lutein and zeaxanthin, two important antioxidants and will also increase choline, an important component of membrane phospholipids.
Results from studies involving cells, animal models and clinical trials have demonstrated that lutein and zeaxanthin potentially protect against chronic diseases, including age-related macular degeneration, cataracts, coronary heart disease and stroke. Plasma concentrations of lutein and zeaxanthin are closely associated with their antioxidant properties and with their protection against reactive oxygen species (ROS). Choline is recognized as an essential nutrient for health because of its many functions in growth and development, as well as neurological function and formation of membrane phospholipids, including phosphatidylcholine (PC) and sphingomyelin. Therefore the objective of this study is to demonstrate that inclusion of eggs in a plant-based diet will potentiate the benefits of this healthy diet by increasing plasma concentrations of lutein, zexanthin and choline presents in egg yolks and theoretically increase the antioxidant and anti-inflammatory actions of these components. This would be potentially more important in those individuals with metabolic syndrome, which is the target population of this intervention.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
24
Participants will be randomly allocated to consume either 2 eggs or 2 egg substitutes with spinach daily for 4 weeks and after a 3-week wash out, they will be allocated to the alternate treatment
Egg Subsitute with spinach per day
Department of Nutritional Sciences
Storrs, Connecticut, United States
Plasma lutein
Plasma lutien will be measured by HPLC. The units are expresses as µmol/L
Time frame: 1 year
Plasma choline
It will be measured by mass spectometry. The units are expressed as nmol/mL
Time frame: 1 year
Plasma Zeaxanthin
Plasma zeaxanthin will by measured by HPLC. The units are expressed as µmol/L
Time frame: 1 year
Plasma lipids
Total, LDL and HDL cholesterol and triglycerides will be measured by an automated spectrometer simultaneously. The units are expressed as mg/dL
Time frame: 1 year
Plasma glucose
Plasma glucose will be measured by an automated spectrometer. Units are expressed as mg/dL
Time frame: 1 Year
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