You must read and accept the disclaimer to use this site. Updated Sept 15, 2005
Caffeine
How much coffee or tea ought one to drink? There are enormous benefits to tea. But what about caffeine itself?
“Many dietary supplements promise to improve physical and mental functioning, but caffeine, an age-old food component, is one of the few that delivers…Many ills have been ascribed to caffeine, but few have been substantiated…there is a consensus that caffeine does not promote ventricular arrhythmia…”
Studies have suggested that low-grade systemic inflammation participates in the pathophysiology of obesity, insulin resistance, heart disease, metabolic syndrome X, and abnormal coagulation process. This study enrolled 1514 men ( ± SD age: 46 ± 13 y; range: 18Ð87 y) and 1528 women. The findings were significant even after control for the interactions between coffee consumption and age, sex, smoking, body mass index, physical activity status, and other covariates. A relation exists between moderate-to-high coffee consumption and increased inflammation process. This relation could explain, in part, the effect of increased coffee intake on the cardiovascular system. [Roc's comment -The risks and benefits of coffee are still unclear to me. Moderation in all things remains a useful general rule] [FOR A RESEARCH POSTER ABOUT THE PROS AND CONS OF COFFEE, CLICK HERE and follow the link to Coffee.
From Nutrition Today 37:28-35 (2002)
Individuals who consume caffeine may experience increased alertness, better memory and mood, and improved reasoning powers. Moderate caffiene consumption (less than 4 cups of coffee) does not affect breast milk or the infant. Women who drank lots of coffee (more than 4 cups) had a 27% lower chance of conceiving.
But the story on coffee is not entirely positive.
Charalambos Vlachopoulos, et al Chronic coffee consumption has a detrimental effect on aortic stiffness and wave reflections Am J Clin Nutr 2005 81: 1307-1312.
Conclusions: Chronic coffee consumption exerts a detrimental effect on aortic stiffness and wave reflections, which may increase the risk of cardiovascular disease.
Heather J Petrie et al, Caffeine ingestion increases the insulin response to an oral-glucose-tolerance test in obese men before and after weight loss
Am J Clin Nutr 2004 80: 22-28
Conclusions: A nutrition and exercise intervention improved, whereas caffeine ingestion impaired, insulin-glucose homeostasis in obese men. The results are consistent with previous findings that caffeine ingestion contributes to insulin resistance.
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