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Thread: Coffee and its effects

  1. #1 Coffee and its effects 
    Forum Sophomore Dkav's Avatar
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    I love coffee and drink like 2 cups/day, black. Sometimes i take vitamins and a snack with it. Does coffee cause poor absorption of a multivitamin in gummy form? Also, I have read recently that coffee has a ton of anti-oxidants in it and is actually good for you, then there are those that are against coffee...so I am not sure whether to continue drinking it, im not addicted or anything, i just like the taste of columbian french pressed black tangy goodness in my mouth.


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  3. #2 Re: Coffee and its effects 
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    Quote Originally Posted by Dkav
    Also, I have read recently that coffee has a ton of anti-oxidants in it and is actually good for you, then there are those that are against coffee...so I am not sure whether to continue drinking it, im not addicted or anything, i just like the taste of columbian french pressed black tangy goodness in my mouth.
    Benefits of antioxidants are not supported by evidence. Even the principle is not particularly sound, since your immune cells use reactive oxygen species to kill bugs and antioxidants would tend to work against that.

    On balance, so far as I am aware, coffee seems to do neither any meaningful benefit nor any significant harm. Mind you, I haven't looked too closely at the evidence, mostly because I drink gallons of the stuff and get headaches if I don't.

    That last point may work against my earlier claim about harm...


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    Its called reactive oxygen species that bind to your DNA and destroy it, oxidize. Isn't that what oxidative stress is all about, oxidation, can result in cell death? Theres plenty of evidence. Let me find some...will post in a little bit.

    edit: looking through a barrage of articles
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    this one goes over the benefits and chemical reactions pretty well tell me if you think otherwise: http://journals.cambridge.org/downlo...aadfcbedad50cd
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  6. #5  
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    Quote Originally Posted by Dkav
    Its called reactive oxygen species that bind to your DNA and destroy it, oxidize. Isn't that what oxidative stress is all about, oxidation, can result in cell death? Theres plenty of evidence. Let me find some...will post in a little bit.
    In principle yes, but there's two big problems:

    1. There's not much evidence that eating or drinking antioxidants has any effect on that process. Do they survive the digestive process? Are they assimilated in a functional form? What's the biodistribution? Do they stay localized to the GI tract or do they get into the circulation...

    2. If it does work, then it will probably also have negative impacts things like innate immunity as I mentioned previously.

    Quote Originally Posted by Dkav
    this one goes over the benefits and chemical reactions pretty well tell me if you think otherwise: http://journals.cambridge.org/downlo...aadfcbedad50cd
    Your link doesn't work. Just write the authors, title and year of publication.
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  7. #6  
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    Drinking up to four standard cups of coffee per day has no proven detrement. However, it does have a proven benefit. People drinking moderate amounts of coffee, statistically have lower rates of Type II diabetes.

    I would not worry about the antioxidant thing too much. Coffee is not a major source. There are heaps of foods that have far more. Mainly fruit and vegetables.

    If you eat a good balanced diet, you need not worry about antioxidants in coffee, and you need not worry about vitamin pills either, unless you have a specific deficiency problem and your doctor told you to take the vitamins.

    The most common problem with coffee is caffeine addiction. If you drink too much, your body comes to need it for normal functioning. This is most clearly shown by headaches if you have not had any caffeine for a while. This addiction can also come from drinking too many caffeine laden soft drinks or energy drinks.
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    google in Wikipedia


    aribica vs robustia
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    Earlier it was assumed that drinking coffee is harmful for the body. but the latest research has confirmed that moderate coffee consumption doesn't cause harm and also have uncovered possible benefits out of it. Studies show that the risk for type 2 diabetes is lower among regular coffee drinkers than among those who don't drink it. Also reduces the risk of developing gallstones, discourage the development of colon cancer, improve cognitive function, reduce the risk of liver damage in people at high risk for liver disease, and reduce the risk of Parkinson's disease. Coffee has also been shown to improve endurance performance in long-duration physical activities.

    For those who drink coffee to stay alert, new research suggests that you'll stay more alert, particularly if you are fighting sleep deprivation, if you spread your coffee consumption over the course of the day. For instance, if you usually drink 16 ounces in the morning, try consuming a 2-3 ounce serving every hour or so. Again, moderation is the key. So coffee drinkers, don't hesitate to drink coffee as it has benefits for your body.
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  10. #9 There is evidence, it's just weak 
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    As a researcher that has focused on antioxidant use for possible cancer treatment, I should say there is plenty of in vitro and in vivo evidence that supports antioxidants can be helpful. The crux is that they can also be dangerous. Reactive oxygen species have important roles in the immune system, in cell signaling. In general if it wasn't for reactive oxygen species, diseased cells wouldn't die off. In this case antioxidants can be bad. They can potentially allow diseased cells to survive when they shouldn't. Antioxidants can also block the effect of cancer chemotherapeutic drugs.

    When Reactive Oxygen Species are exceptionally high, this often leads to increased mutations and is a beginning step to many diseases including cancer. It is here where antioxidant research has shown the most promise. Other data does support that antioxidants can reduce cancer levels of a patient that is already suffering from cancer, but a lot of data does indicate a usefulness in preventing disease. you can look up curcumin in pubmed for an example.

    The issue comes into play when people begin taking all sorts of these compounds thinking they are preventing disease. In all honesty we are still learning about these things, and no one truly knows how these compounds will effect your body.

    If you enjoy your coffee, enjoy your coffee, but don't start mucking around with things that you're not sure of, without first talking to a medical doctor or something. Remember natural is not synonymous with safe.
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    Short Term Effects
    Caffeine is a drug that has been widely used for centuries. Its main
    effect is that it is a mild stimulant of the central nervous system (CNS), helping to reduce feelings of drowsiness and fatigue. However, regular use may lead to "habituation"; that is, no net benefit from use but, rather, a negative effect if the drug is not taken.

    Besides the above-mentioned CNS stimulant effect, caffeine also temporarily increases heartbeat, increases the blood pressure, and stimulates the action of the lungs; increases basal metabolic rate (BMR), and promotes urine production; and it relaxes smooth muscles, notably the bronchial muscle. Caffeine is used in treating migraine, either alone or in combination. It enhances the action of the ergot alkaloids used for the treatment of this problem, and also increases the potency of analgesics such as aspirin. It can somewhat relieve asthma attacks by dilating the bronchial airways.

    Too much caffeine can produce restlessness, nausea, headache, tense muscles, sleep disturbances, and cardiac arrhythmias (irregular heartbeats). Because caffeine increases the production of stomach acid it may worsen ulcer symptoms or cause acid reflux ("heartburn"). Evening use of caffeine may disrupt sleep and cause insomnia.

    Caffeine should be used with caution by people with heart disease and high blood pressure (hypertension), and by those suffering from the eye disease glaucoma. Caffeine medications should generally not be used in children. Many children are already consuming significant amounts of caffeine in drinks and food. In this connection, a nutritional concern is that children may choose fizzy drinks in preference to milk, thus getting "empty" calories at the expense of valuable nutrients.

    Long-term effects

    As already mentioned, some potentially harmful effects of coffee are recognized, particularly for people who should take few or no stimulants. Beyond this however, scientific studies of the effects of caffeine have in general failed to prove negative effects, although some have produced contradictory conclusions. An individual study may produce interesting results which may suggest fruitful directions for further research, but usually it is only when several independent studies confirm one another, and any contradictory results can be accounted for, that one can have reasonable confidence in the safety of a drug -- particularly an " optional" one like coffee.

    Although caffeine does not fall into the class of "addictive" drugs, it may be habit-forming. Some people may experience headache, fatigue, irritability and nervousness when their daily intake of caffeine is quickly and substantially altered.
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    The coffee makes us nervous only if we are much time drink coffee
    That what I read it about coffee
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    I have to use it
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    The coffee makes us nervous only if we are much time drink coffee. That what I read it about coffee
    I agree, I've certainly been dang high from too much coffee many times and I don't remember it ever making me nervous, which I consider a mental state. From an outsiders though it might have appeared that way because it does make you jittery.
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    All I know is that it's incredibly helpful for when you have a long night of hard work (pouring over maths equations and physics problems)!
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    Coffee is very good for you in multiple ways, I actually just had to write a long winded explanation on the effects of coffee on the body for my personal training/ nutrition science class. I have received my citification but the only problem is that the test i took forced me to write the essay on the test and submit it so I dont have the essay... oh well ill try and provide a quick version of what i remember off the top of my head. Also this is a good website that I used for more benefits.
    Top 15 Effects That Coffee Has on Your Health - Softpedia

    OK so coffee is one of the best substances to take any multivitamin medication with, this is a quote from another website. "Any beverage or food containing caffeine such as coffee, tea, chocolate and some sodas can inhibit the absorption of vitamins and minerals and increase their excretion from the body." OK so besides coffees added absorption it also helps to loose weight if you walk after etc or do any sort of exercise in general. The caffeine in coffee is low in calories if any, but it promotes the bodies digestion of stored fat, FIRST. See usually your body draws off the food in your stomach before resorting to your 'defect' or the calories it has stored. But coffee/ clean caffeine tells the body to do the opposite. This is usually only when you drink coffee on an empty stomach, but i say usually because everyone is different.

    Im sure that this is enough information for you and I can go on and on about coffee lol so if you or anyone is interested in the rest of my essay ill rewrite a short version of what i have written.

    Hope this helps!

    P.S. I passed whilst only getting one question wrong on my final, so no ned to be alarmed all of the information is accurate! lol



    EDIT: I forgot to add sorry everyone, that taking vitamins with coffee is a good thing but if they are water soluble vitamins the effects may dwindle quicker if you have nothing in your stomach. Also like i said everyone is different I dont recommend drinking coffee on a completely empty stomach because in my case i get the shakes. A light breakfast is my best advice! hope this also helps and I apologize for leaving this out
    Last edited by Fmp2491; August 2nd, 2011 at 09:59 AM.
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  16. #15  
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    Fmp2491.
    Try reading your own quote next time.
    "Any beverage or food containing caffeine such as coffee, tea, chocolate and some sodas can inhibit the absorption of vitamins and minerals and increase their excretion from the body."
    In other Coffee interferes with absorption of vitamins and minerals.
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  17. #16  
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    Yea that was the purpose of my edit, at the bottom the quote that I wrote. The one which you quoted as well, was supposed to be followed by my edit. For some reason I placed it at the bottom by accident. The quote was directly related to water soluble vitamins which I ment to spend more time on but if you read the articles on water soluble vitamins then you will understand that caffeine inhibits those functions.

    Sorry for the sloppy placement of editing! and thanks Lynx for point it out because I didn't even notice that the edit was placed at the bottom!
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    Coffee is, regardless of what anyone says, an excellent source of antioxidants. In fact, it is by far the most significant source of antioxidants in the American diet (although whether that speaks of the healthfulness of coffee or the mediocrity of the American diet is another question). On the other hand, and as stated, we don't know if consuming antioxidants even matters.

    However, if you like the taste of coffee, I see no problems with it. The caffeine itself is a wonderful metabolism booster, aids in concentration, acts as an analeptic, etc. Moreover, you enjoy the coffee. So, drink away. Nothing negative has been proven with coffee, so it obviously isn't a major cause of harm. Moreover, the evidence points in just the opposite direction.

    As long as you have your coffee free from cream and sugar, it can be a very healthful beverage.

    On the other hand, yes, you shouldn't consume it with your multivitamin. Multivitamins should always be consumed after or between solid foods to allow for maximal absorption.

    Coffee does not leech major quantities of vitamins and minerals from your body. It may leech calcium, but not significantly. It can easily be made up for by a calcium & vitamin D supplement or a glass of milk.
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    Coffee is very important because it gives people strength because it can release stress from your body, some people drink coffee at night. It is also very tasty, and generally refreshes the person during morning time. Though it has some nicotine effect still it relaxes when you are tired.
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    The biggest problem with coffee is that if kills digestive flora (wipes them out in fact) and it is an unappreciated cause of serious digestive disorders. There are actually some studies on coffee and human microflora. The loss of digestive flore can definitely impair vitamin uptake and make you otherwise generally sick.

    Quote Originally Posted by Dkav View Post
    I love coffee and drink like 2 cups/day, black. Sometimes i take vitamins and a snack with it. Does coffee cause poor absorption of a multivitamin in gummy form? Also, I have read recently that coffee has a ton of anti-oxidants in it and is actually good for you, then there are those that are against coffee...so I am not sure whether to continue drinking it, im not addicted or anything, i just like the taste of columbian french pressed black tangy goodness in my mouth.
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    I know we all love coffee, but let me break the news to everyone. Let's not be deluded, coffee is terrible for human health. As far as I'm concerned its the only ting as bad as sugar. It really messes the body up.

    Quote Originally Posted by Nancy Parker View Post
    Coffee is very important because it gives people strength because it can release stress from your body, some people drink coffee at night. It is also very tasty, and generally refreshes the person during morning time. Though it has some nicotine effect still it relaxes when you are tired.
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    The calculation here is to imagine this: If someone told you that all the rubbsih we ate for example coffee wether it's good or bad and the food and junk we eat, would this mean we are not in good health. Some friends of mine never change weight and eat what they want and others get fat and unhealthy so is this about the individual person's metabalism or are we designed in unique methods that allow some of us to survive longer regardless of what we eat.

    If you search for coffee on the internet you will notice the search engine results are extremely high infact coffe could be what runs the web in the form of search terms. So we drink loads of coffee because it's addictive, keeps your body awakened and give you a rush of energy, not to mention the aroma makes you feel good. It's a good drnk but not in high quantities it gives you the shakes for one.

    I drink coffee sometimes but If i drink the same coffee from the same place it tastes watered down almost like my biological highs which have reached a point i'm not attracted anymore, so i move to a new location where they sell coffee and then guess what the coffee tastes good again.
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  23. #22  
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    Quote Originally Posted by habanasmith View Post
    I dislike the coffee.
    A truly fascinating piece of information!
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    all coffee is not created equal. fresh ground organic coffee freshly brewed with non-city water is a superior product to mass produced, poor quality coffee brewed with city water. putting lots of sugar and ultra pasteurized creamer will also lower the quality of this kind of coffee. As with most things in life, you are better off choosing the higher quality product -
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  25. #24  
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    Quote Originally Posted by plasma dragon View Post
    all coffee is not created equal. fresh ground organic coffee freshly brewed with non-city water is a superior product to mass produced, poor quality coffee brewed with city water. putting lots of sugar and ultra pasteurized creamer will also lower the quality of this kind of coffee. As with most things in life, you are better off choosing the higher quality product -
    What does any of that have to do with the physiological effects of coffee?
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    Ah, everything actually. Crappy coffee can make you feel like crap. Good coffee can make you feel good.

    Different quality coffees prepared differently will have different physiological effects. You can't lump all coffee into the same category. I owned a coffee shop for 13 years - I think that makes me an expert on this sort of thing...
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  27. #26  
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    Quote Originally Posted by plasma dragon View Post
    Ah, everything actually. Crappy coffee can make you feel like crap. Good coffee can make you feel good.

    Different quality coffees prepared differently will have different physiological effects.
    That's quite plausible, but you'd need some good evidence to back that up.

    Quote Originally Posted by plasma dragon View Post
    You can't lump all coffee into the same category. I owned a coffee shop for 13 years - I think that makes me an expert on this sort of thing...
    I think it probably makes you an expert on making coffee, which is a great skill in my eyes and very valuable (though I may be biased by my great love of coffee). With the utmost respect however, no amount of making coffee is going to make you an expert on its physiological effects. That requires detailed scientific research in a controlled environment. The most a coffee shop environment can provide is anecdotal evidence, which is the weakest kind of evidence.
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    Plasma dragon is presenting misleading and false information. There is no scientific data suggesting organic coffee is better for health than non organic, and no scientific data suggesting that city water is less healthy than other, especially not after being boiled for coffee. I challenge p.d. to present proper references to back up his assertions, and prove they are based on science rather than, as I very strongly suspect, pure dogma.

    Short edit : Two years ago, the British Food Standards Agency published a study into organic food to see if it conferred any health benefits. The answer was no.
    http://www.food.gov.uk/news/newsarch...09/jul/organic

    Coffee, like so many other things, has effects depending on how much you consume. As I said earlier, up to four standard cups per day is healthy. More than that becomes unhealthy. Keeping consumption within those limits prevents the harmful side effects. In addition to reducing the chances of type II diabetes, it apparently reduces hyperuricaemia, which is a great thing for older people who might suffer from gout.
    Last edited by skeptic; September 20th, 2011 at 06:41 PM.
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    Quote Originally Posted by skeptic View Post
    Plasma dragon is presenting misleading and false information. There is no scientific data suggesting organic coffee is better for health than non organic, and no scientific data suggesting that city water is less healthy than other, especially not after being boiled for coffee. I challenge p.d. to present proper references to back up his assertions, and prove they are based on science rather than, as I very strongly suspect, pure dogma.

    Coffee, like so many other things, has effects depending on how much you consume. As I said earlier, up to four standard cups per day is healthy. More than that becomes unhealthy. Keeping consumption within those limits prevents the harmful side effects. In addition to reducing the chances of type II diabetes, it apparently reduces hyperuricaemia, which is a great thing for older people who might suffer from gout.
    I've also heard that something in the range of 3-4 cups/day produces some increase in stroke risk. The magnitude of all these risk changes is the key. The mainstream press love to throw these around but present the risks in whatever terms makes them sound most dramatic, yet they rarely are significant changes.
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    Quote Originally Posted by skeptic View Post
    Plasma dragon is presenting misleading and false information. There is no scientific data suggesting organic coffee is better for health than non organic, and no scientific data suggesting that city water is less healthy than other, especially not after being boiled for coffee. I challenge p.d. to present proper references to back up his assertions, and prove they are based on science rather than, as I very strongly suspect, pure dogma.

    Coffee, like so many other things, has effects depending on how much you consume. As I said earlier, up to four standard cups per day is healthy. More than that becomes unhealthy. Keeping consumption within those limits prevents the harmful side effects. In addition to reducing the chances of type II diabetes, it apparently reduces hyperuricaemia, which is a great thing for older people who might suffer from gout.
    According to one of my professors it also lowers the risk of getting Alzheimer for women
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    Caffeine is also broken down by the cytochrome P450 enzymes that are involved with breaking down xenobiotics (including drugs) that are introduced in the body. These P450's break the xenobiotics into metabolites that are able to be excreted by the body (in the urine, by making the molecules more polar). This requires use of NADPH, which is also involved in metabolic processes in the body, like substrate-level production of ATP in the cells. Although its been shown many forms break down caffeine, an important one, CYP3A's, are listed, a family involved with the breakdown of more than 50% of drugs on the market. Is it likely that a large amount of caffeine ties down these enzymes and retains toxic versions of drug metabolites in the body (such as salicylic acid)? Or, that a large amount of substrate consumes additional NADPH, and leads to problems with ATP production? I know this has been shown for things like charcoal meat and tobacco smoke...
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    Quote Originally Posted by The Masked Microbiologist View Post
    Caffeine is also broken down by the cytochrome P450 enzymes that are involved with breaking down xenobiotics (including drugs) that are introduced in the body. These P450's break the xenobiotics into metabolites that are able to be excreted by the body (in the urine, by making the molecules more polar). This requires use of NADPH, which is also involved in metabolic processes in the body, like substrate-level production of ATP in the cells. Although its been shown many forms break down caffeine, an important one, CYP3A's, are listed, a family involved with the breakdown of more than 50% of drugs on the market. Is it likely that a large amount of caffeine ties down these enzymes and retains toxic versions of drug metabolites in the body (such as salicylic acid)? Or, that a large amount of substrate consumes additional NADPH, and leads to problems with ATP production? I know this has been shown for things like charcoal meat and tobacco smoke...
    It is believed that 2 cups of coffee reduce muscle pain. When caffeine is consumed before going to the gym decreases pain. Hence it is stress reducing and pain relaxing. Caffeine boosts endurance, and decrease pain during cycling and other intense physical activities. Caffeine sometimes act as more efficient in relaxing pain than other conventional pain reliever drugs.
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    Caffeine is an antagonist of the adenosine a2a receptor. This receptor 'crosstalks' with the GABA(A) receptor and caffeine causes reduced functioning of this receptor, via adenosine a2a recetor antagonism. Sedatives, such as valium, act on the GABA(A) receptor as agonists. Consuming large amounts of caffeine causes 'jitteriness' by having the opposite effect.

    Also, the GABA(A) receptor crosstalks with other receptors, such as dopamine, attenuating their transmission. Therefore, if GABAergic transmission is reduced by caffeine, dopaminergic transmission is increased, which results in heightened alertness.
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    Most of the people who face the problem of the fat use the coffee which is really helpful to
    burn the calories of the human body. The use of the 2 cup are enough to lose the weight .
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    I drink coffee daily. Coffee burn the fat of the body. It also useful to reduce the weight of the body. Drink 1 cup of coffee at least.

    Fitness Nashville
    Last edited by Shelley1; November 20th, 2011 at 04:14 AM.
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    Great sharing.,
    I would not worry about the antioxidant thing too much.
    Coffee is not a major source. There are heaps of foods that have far more.
    Thanks for sharing that.
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    Ha ! What would the world be without the goodness of a nice, hot, strong cuppa before work in the mornings...just wouldn't be the same
    Never mind them antioxidants !
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