Improvement of Metabolic Health After Thylakoid Supplementation

Metabolic Syndrome, Obesity

Objective: The purpose of this study was to investigate the possible effects of green-plant thylakoid supplementation to a restricted diet intervention study in overweight to obese men. Methods: Overweight-obese men (BMI 25 - 35) were treated to a 30 E% restricted diet for one month, followed by one month of stabilization. Then they were divided in two treatment arms of one month each; one thylakoid-enriched diet (n=10) and one control diet (n=10). Body measurements and blood samples were taken throughout the study.

Twenty healthy, non-vegetarian, non-smoking Caucasian men were included in the study. Inclusion criteria: men aged 40 to 70 years with a BMI of 25 to 35. Exclusion criteria: Metabolic disturbances, bariatric surgery, recent diet, food allergies or treatment with antibiotics. The study protocol was approved by the Ethical Committee of Lund University, Sweden (#2006/361). The trial consisted of three periods: 1) diet-restriction period (one month) 2) stabilizing period (one month) 3) diet-restriction period with supplementation of thylakoids or placebo (one month). The two weight-losing periods included strict diet recommendation with -30 energy % (E%), and macronutrient composition: 55-65 E% carbohydrates, 10-15 E% protein and 25-35 E% fat. Sixty minutes of low intensive exercise per day was also required. During the stabilizing month participants were instructed to eat a healthy diet to be able to keep their achieved weight-loss. Day 0, 28, 56 and 84 the participants arrived after 12-hour fasting for blood sampling and anthropometric measurements. The blood samples were analyzed for plasma-glucose, insulin, HbA1c, inflammation markers, cholecystokinin, ghrelin, total cholesterol, LDL-cholesterol, HDL-cholesterol, and triacylglycerol.

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