Tag Archives: coffee

Coffee Causes Cancer…No!

coffee

Around one in 10 British adults mistakenly think coffee causes cancer,so says a survey carried out by the World Cancer Research Fund (see here). Nothing can be  further from the truth – repeat, drinking coffee does not cause cancer. In fact, the benefits of coffee have been largely understated. Among the benefits include:

1. It contains powerful anti-oxidants, like chlorogenic acid and melanoidins (especially in roasted coffee beans), both of which confer proven health benefits.

2.Reducing the incidence of Parkinson’s Disease and Alzheimer’s. Read “A Cup of Coffee a Day will Keep Alzheimer’s Away”.

3.Protecting against diabetes. Moderate consumption  may lower the risk of type 2 diabetes in younger and middle aged women.

4.Preventing liver disease and the formation of liver and kidney stones.

5. Promoting alertness, attentiveness, and wakefulness.

But its not all good and no bad. Drinking excessive amounts (more than four cups a day) has been shown to accelerate osteoporosis as well as increase blood pressure, palpitations and even increase the risk of hardening of the arteries (a process called atherosclerosis). In some, coffee can cause heartburn, or GERD(gastro -esophageal reflux disease).

An important point to note is that there seems to be a health hazard in drinking unfiltered coffee (as in Turkish coffee and kahawa) as it raises blood cholesterol. Filtered coffee, as in instant coffee, does not do so, as diterpenes, responsible for raising cholesterol, are removed by filtration.

What about heart disease? The verdict’s not in just yet..on one hand, diterpenes cause a rise in cholesterol and homocysteine but this seems balanced by the beneficial anti-oxidant properties. As of now, there is no convincing evidence that coffee leads to heart disease.

latte

Latte, a combination of coffee,steamed milk and sugar) can set you back by 260 calories per cup.

Bear in mind that this discussion is based on just pure plain coffee. The scenario changes quite a bit with additives like milk, cream and sugar. For one thing, a cup of latte at Starbucks can contribute about 260 calories (as opposed to 0 calories in plain coffee). This is not to mention the health risks of added fats (and cholesterol) and sugar.

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So, Is Coffee OK, Doc?

Some patients asked recently whether coffee was good for one’s health. They had apparently noticed that there has been the shift in marketing strategy by coffee-makers  in promoting it as a rich source of anti-oxidants, and therefore beneficial to health.

coffeePour

 

YES,  coffee is a rich source of anti-oxidants, like chlorogenic acid and melanoidins, the latter being the most important component of roasted coffee. Some of the other beneficial effect of drinking coffee include:

  1. Reducing the incidence of Parkinson’s Disease and Alzheimer’s. Read “A Cup of Coffee a Day will Keep Alzheimer’s Away”.
  2. Protecting against diabetes. Moderate consumption  may lower the risk of type 2 diabetes in younger and middle aged women.
  3. Preventing liver disease and the formation of liver and kidney stones.
  4. The beneficial effects of caffeine in coffee on alertness, attentiveness, and wakefulness.

NO,  among other things:

  1. Unfiltered coffee (as in Turkish coffee and kahawa) raises blood cholesterol. Filtered coffee, as in instant coffee, does not do so as diterpenes, responsible for raising cholesterol, are removed by filtration.
  2. Coffee consumption is also associated with an increase of plasma homocysteine, a risk factor for coronary heart disease.
  3. Caffeine in coffee can increase the risk of elevated blood pressure and hardening of the arteries, as well as palpitations.
  4. 4 cups or more will hasten osteoporosis, especially in those with low calcium intake in the diet.
  5. Coffee increases heartburn, aka gastro-eosophageal reflux disease (GERD).

What about heart disease? The verdict’s not in just yet..on one hand, diterpenes cause a rise in cholesterol and homocysteine but this seems balanced by the beneficial anti-oxidant properties. As of now, there is no convincing evidence that coffee leads to heart disease, period.

I ought to clarify here that we are talking about coffee, just plain coffee. The pendulum swings the other way when we consume coffee with additives, like milk and sugar. The latte at the local Starbucks will add on quite a substantial amount of fats, sugars and calories (260 to be precise, see here). Compare that to the ZERO calories of plain black coffee!

Too Tired? Take Coffee!

..That’s the advice by the Queensland State government to their doctors who have been working on 30-80 hour non-stop shifts. This advice is contained in a 102-page Queensland Health Fatigue Risk Management System in response to a complaint  that public hospital patients were dying because dangerously tired medics were being forced to work up to 80 hours without a break.(see the Reuter’s report)

coffee_fatigue

Coffee..postponing fatigue and sleep deprivation, but at what cost?

The document recommends 400 milligrams of coffee (6 cups of coffee) as a fatigue fighter, so that the exhausted doctors can continue their duties.  600 milligrams? That’s enough to cause heart palpitations, raised blood pressure, dizziness, anxiety and hand tremors! Not to mention caffeine dependence and addiction.

The background for this astonishing strategy appears to be mainly due to Australia’s ailing public hospital system which is managed by state governments like Queensland, with federal government support. Gross inefficiencies and the rising cost of healthcare have led to insufficient funding and staff shortages. In a scenario similar to the US, urgent healthcare reform is on the cards and Kevin Rudd is seriously considering a  federal government takeover.

Back to coffee..lets not forget its beneficial effects. Its a rich source of anti-oxidants like chlorogenic acid and melanoidins. It also helps to prevent diabetes,Alzheimer’s and Parkinson’s disease. The jury is still out on whether it causes heart disease although it is known to increase blood pressure. Read more about the health effects of coffee in my earlier posting  “Losing Sleep Over Coffee”.

Thanks to Fidel for drawing attention to this news report.

coffee_types

The Benefits of Plain Coffee is Neutralised by Adding Sugar & Milk such as Those Found in Coffee Outlets

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Losing Sleep Over Coffee

Some patients asked recently whether coffee was good for one’s health. Part of the recent upsurge in interest in the health benefits of this beverage has been the shift in marketing strategy by coffee-makers locally in promoting it as a rich source of anti-oxidants.

coffeePour

Plain Black Coffee - rich in antioxidants and with zero calories

Yes, coffee is a rich source of anti-oxidants, like chlorogenic acid and melanoidins, the latter being the most important component of roasted coffee. Some of the other beneficial effect of drinking coffee include:

  1. Reducing the incidence of Parkinson’s Disease and Alzheimer’s. Read “A Cup of Coffee a Day will Keep Alzheimer’s Away”.
  2. Protecting against diabetes. Moderate consumption  may lower the risk of type 2 diabetes in younger and middle aged women.
  3. Preventing liver disease and the formation of liver and kidney stones.
  4. The beneficial effects of caffeine in coffee on alertness, attentiveness, and wakefulness.

And the bad news? Among other things:

  1. Unfiltered coffee (as in Turkish coffee and kahawa) raises blood cholesterol. Filtered coffee, as in instant coffee, does not do so as diterpenes, responsible for raising cholesterol, are removed by filtration.
  2. Coffee consumption is also associated with an increase of plasma homocysteine, a risk factor for coronary heart disease.
  3. Caffeine in coffee can increase the risk of elevated blood pressure and hardening of the arteries, as well as palpitations.
  4. 4 cups or more will hasten osteoporosis, especially in those with low calcium intake in the diet.
  5. Coffee increases heartburn, aka gastro-eosophageal reflux disease (GERD).

What about heart disease? The verdict’s not in just yet..on one hand, diterpenes cause a rise in cholesterol and homocysteine but this seems balanced by the beneficial anti-oxidant properties.

I ought to clarify here that we are talking about coffee, just coffee. The pendulum swings the other way when we consume coffee with additives like milk and sugar. The latte at the local Starbucks will add on quite a substantial amount of fats, sugars and calories (260 to be precise, see here). Compare that to the ZERO calories of plain black coffee!

coffee_types

Gotten into a heated discussion recently about coffee preventing a proper sleep? Some people find that the mild stimulation of caffeine consumed even hours before bed time delays sleep, while others can consume a cup which will knock them out in no time! This paradox has never been fully explained even in medical circles..

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