Coffee and Tea - How much
You’ve probably heard a lot of mixed things about coffee—it’s bad, it’s good, it doesn’t do anything—but the bulk of the evidence says drinking joe is good for you. Cardiologists think some of the health benefits may come from the antioxidants in coffee, like polyphenols, but it’s been difficult to link the effects to any specific compound. The polyphenolic antioxidants seem to improve insulin sensitivity and glucose metabolism. Insulin is how your body tames spiking blood glucose levels, and when the system gets out of whack you can develop larger metabolic problems like type two diabetes.
Most of the reassurance that coffee is part of a healthy diet comes from observational studies, where researchers ask a large number of people to describe their eating and coffee drinking habits, and then find associations between consuming coffee and heart health. Those studies have found that drinking somewhere around three to five cups a day reduces your overall risk of death as well as your risk of cardiovascular disease. Java also doesn’t seem to have any significant impact on arrhythmias, hypertension, blood lipid levels, or cholesterol, but it does decrease your risk of developing type two diabetes.
All that being said, the thing that’s not healthy about many Americans’ coffee habits is the sugar. Coffee-flavored drinks, or simple drip coffee with tons of sugar added, are counterproductive. The sugar and calories in them work against the heart-healthy black coffee, so try to drink your morning cup with as few adulterating other ingredients as possible.
Tea
Like coffee, researchers think the antioxidants in tea are part of what helps it to have a positive impact on our bodies. Tea drinkers tend to have lower cardiovascular disease risk and overall mortality risk, in addition to having better ratios of low to high density lipoproteins. Lipoproteins are the compounds your body uses to carry around cholesterol (remember: you actually need some cholesterol for your cell membranes to function), and there are two kinds. The low density version is bad because it contributes to fatty buildups in your arteries, whereas high density ones are good because they seem to take the low density version out of your bloodstream. more
Most of the reassurance that coffee is part of a healthy diet comes from observational studies, where researchers ask a large number of people to describe their eating and coffee drinking habits, and then find associations between consuming coffee and heart health. Those studies have found that drinking somewhere around three to five cups a day reduces your overall risk of death as well as your risk of cardiovascular disease. Java also doesn’t seem to have any significant impact on arrhythmias, hypertension, blood lipid levels, or cholesterol, but it does decrease your risk of developing type two diabetes.
All that being said, the thing that’s not healthy about many Americans’ coffee habits is the sugar. Coffee-flavored drinks, or simple drip coffee with tons of sugar added, are counterproductive. The sugar and calories in them work against the heart-healthy black coffee, so try to drink your morning cup with as few adulterating other ingredients as possible.
Tea
Like coffee, researchers think the antioxidants in tea are part of what helps it to have a positive impact on our bodies. Tea drinkers tend to have lower cardiovascular disease risk and overall mortality risk, in addition to having better ratios of low to high density lipoproteins. Lipoproteins are the compounds your body uses to carry around cholesterol (remember: you actually need some cholesterol for your cell membranes to function), and there are two kinds. The low density version is bad because it contributes to fatty buildups in your arteries, whereas high density ones are good because they seem to take the low density version out of your bloodstream. more
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Oct 31
Thanks to Mdm. Eliana Jacob for a concise presentation on two of the most common/popular beverages. Apropos her remarks " lot of mixed things" - I like to add that reproducibility and generalisation of the research reports may not be correct. We need to consider the facts that there are thousands of cultivation plots, and some hundreds of cultivars - whose product quality vary widely. Price of tea may vary from Rs.200/- per kg to well above Rs.50,000/- per kg. Method of preparation also vary from locality to locality. Therefore, the intake of phytochemicals contained therein would widely vary. The same is true for Coffee also. more
Aug 27
Dear Madam Eliana, It is, indeed, very useful information, for which I am thankful. Not withstanding your apparently apparent reservation about statistical evaluation in medical research, I think statistics is an accepted tool for research in any field more so in fields where actual evaluation/ physical verification is fraught with undesirable consequences. The results can go wrong if the sample size is either inadequate or quality is unsuitable as well as errors cropping up in data validation and interpretation. But in such an eventuality, Contra-reports crop up very very fast. more
Aug 06
