How's Coffee Effect on Diabetes?

Time04:40 Date01-04-2020 Hits386 Views

Coffee and diabetes

Coffee was once condemned as being bad for your health. Yet, there’s growing evidence that it may protect against certain kinds of cancers, liver disease, and even depression. There’s also compelling research to suggest that increasing your coffee intake may actually lower your risk for developing type 2 diabetes. This is good news for those of us who can’t face the day until we get in our cup of java.

However, for those who already have type 2 diabetes, coffee could have adverse effects. Whether you’re trying to lower your risk, you already have diabetes, or you just can’t go without your cup of joe, learn about coffee’s effects on diabetes.

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Coffee and the possible prevention of diabetes

The health benefits of coffee for diabetes differs from case to case.

Researchers at Harvard tracked over 100,000 people for about 20 years. They concentrated on a four-year period, and their conclusions were later published in this 2014 study.

They found that people who increased their coffee intake by over one cup per day had an 11 percent lower risk of developing type 2 diabetes.

However, people who reduced their coffee intake by one cup per day increased their risk of developing diabetes by 17 percent. There was no difference in those drinking tea.

It’s not clear why coffee has such an impact on the development of diabetes.

Thinking caffeine? It may not be responsible for those good benefits. In fact, caffeine has been shown in the short term to increase both glucose and insulin levels.

In one small study involving men, decaffeinated coffee even showed an acute rise in blood sugar. Right now there are limited studies and more research needs to be done on the effects of caffeine and diabetes.

Coffee’s effect on glucose and insulin

While coffee could be beneficial for protecting people against diabetes, some studies have shown that your plain black coffee may pose dangers to people who already have type 2 diabetes.

Caffeine, blood glucose, and insulin (pre- and post-meal)
One 2004 study showed that taking a caffeine capsule before eating resulted in higher post-meal blood glucose in people with type 2 diabetes. It also showed an increase in insulin resistance.

According to a recent 2018 studyTrusted Source, there may be a genetic proponent involved. Genes may play a role in caffeine metabolism and how it affects blood sugar. In this study, people who metabolized caffeine slower showed higher blood sugar levels than those who genetically metabolized caffeine quicker.

Of course, there’s a lot more in coffee other than caffeine. These other things may be what’s responsible for the protective effect seen in the 2014 study.

Drinking caffeinated coffee over a long period of time may also change its effect on glucose and insulin sensitivity. Tolerance from long-term consumption may be what causes the protective effect.

A more recent studyTrusted Source from 2018 showed that long-term effects of coffee and caffeine may be linked to lowering risk of prediabetes and diabetes.

Fasting blood glucose and insulin
Another study in 2004 looked at a “mid-range” effect on people without diabetes who had been either drinking 1 liter of regular paper-filtered coffee a day, or who had abstained.

At the end of the four-week study, those who consumed more coffee had higher amounts of insulin in their blood. This was the case even when fasting.

If you have type 2 diabetes, your body is unable to use insulin effectively to manage blood sugar. The “tolerance” effect seen in long-term coffee consumption takes a lot longer than four weeks to develop.

Habitual coffee drinking

There’s a clear difference in how people with diabetes and people without diabetes respond to coffee and caffeine. A 2008 study had habitual coffee drinkers with type 2 diabetes continuously monitor their blood sugar while doing daily activities.

During the day, it was shown that right after they drank coffee, their blood sugar would soar. Blood sugar was higher on days that they drank coffee than it was on days they didn’t.

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Other health benefits of coffee

There are other health benefits of drinking coffee that aren’t related to diabetes prevention.

Newer studies with controlled risk factors have been showing coffee’s other benefits. They include potential protection against:

  • Parkinson’s disease
  • liver disease, including liver cancer
  • gout
  • Alzheimer’s disease gallstones

These newer studies have also shown that coffee seems to decrease depression risk and increase the ability to focus and think clearly.

Risks and warnings

Even for healthy individuals, the caffeine in coffee can have some side effects.

Caffeine’s common side effects include:

  • headaches
  • restlessness
  • anxiety

As with most everything, moderation is the key to coffee consumption. However, even with moderate consumption, coffee does have risks that you should discuss with your doctor.

These risks include:

  • an increase in cholesterol with unfiltered or espresso-type coffees
  • an increased risk of heartburn
  • elevated blood glucose levels after a meal

Other things to keep in mind:

  • Adolescents should have less than 100 milligrams (mg) of caffeine each day. This includes all caffeinated drinks, not just coffee.
  • Young children should avoid caffeinated drinks.
  • Adding too much sweetener or cream can increase your risk of diabetes and become overweight.

Source: healthline.com

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