How Does Coffee Affect Diabetes?
With diabetes, diet is of the utmost concern. What people with diabetes eat and drink directly affects their blood glucose levels. We often concentrate on food, but what people drink is just as important.
For many people, the only way to get the day started is with a cup of coffee. Thankfully, recent studies have shown that drinking coffee may actually reduce the risk of getting diabetes.
But what about for those who already have diabetes? Is coffee, or the caffeine in coffee, a problem for those with diabetes? Two 8-ounce cups of coffee contain about 280 milligrams of caffeine.
For most young healthy adults, caffeine does not seem to make blood sugar levels higher. Even consuming up to 400 milligrams per day appears to be safe for most people. This article will take a closer look at caffeine and some of the research that has been done in this area.
Contents of this article:
Diabetes and caffeine
According to the American Diabetes Association in 2012, 29.1 million Americans or 9.3 percent of the population had diabetes. About 8.1 million of the 29.1 million were undiagnosed. The World Health Organization reported that the number of people with diabetes worldwide in 2014 was 422 million.
Coffee is one of the most popular drinks in the world. But is it ok for people with diabetes to drink?
Glucose in the body comes from food and drink as well as being made by the liver. Insulin is a naturally occurring hormone in the body and helps the body to absorb glucose.
People who have diabetes have too much glucose in their blood, which can cause serious health problems. Diabetes can occur due to either the pancreas not producing no or not enough insulin or the body being unable to use insulin effectively.
Type 2 is the most common type of diabetes. In those who have it, the body has a problem with both producing enough insulin and having the insulin work properly in the body.
What is caffeine?
Caffeine is the drug found in coffee that can be dangerous if too much is consumed. Caffeine is a stimulant and can speed up the central nervous system.It occurs naturally in more than 60 plants including coffee beans and tea leaves. Man-made caffeine is sometimes added to food, drinks such as energy drinks, and medicines such as prescription diet pills.
Caffeine stimulates the brain and can change the way people feel and act. Many people use coffee to help wake themselves up in the morning, relieve tiredness, and improve concentration and focus.
Diabetes and coffee research studies
A study led by the Harvard School of Pubic Health has shown that people who increased the amount of coffee they drank by more than one cup per day over a 4-year period had an 11 percent lower risk for type 2 diabetes than those who made no changes to their coffee intake.The study also found that those who decreased their coffee consumption by more than one cup per day increased their chance of developing type 2 diabetes by 17 percent.
Lead author Shilpa Bhupathiraju stated:
"Our findings confirm those of previous studies that showed that higher coffee consumption was associated with lower type 2 diabetes risk. Most importantly, they provide new evidence that changes in coffee consumption habit can affect type 2 diabetes risk in a relatively short period of time."Overall these findings seem to demonstrate that coffee could have health benefits for people with diabetes.
Harvard researchers previously looked at 28 studies around the world. Their analysis highlighted the risk of developing diabetes with drinking no coffee or coffee at different amounts.
In total, 1,109,272 subjects were studied, of whom 45,335 had diabetes. The study followed participants from 10 months to 20 years. The study found that both caffeinated and decaffeinated coffee lowered the risk of developing type 2 diabetes.
Advantages and disadvantages of coffee
Caffeine is the most common ingredient discussed in coffee, but there are others worth noting.Polyphenols are molecules with antioxidant properties believed to help prevent inflammatory diseases such as type 2 diabetes. Coffee also contains the minerals magnesium and chromium. Increasing magnesium intake has been linked to lower rates of type 2 diabetes.
Some studies suggest that coffee could have an effect on blood sugar levels.
These findings may sound promising for people with diabetes who love starting their day off with a fresh cup of coffee. However, other research has linked coffee and caffeine to an increase in blood sugar levels and insulin resistance.
One small study showed that just one single serving of coffee with 100 milligrams of caffeine could have a negative impact on blood sugar control in healthy but overweight men. In some cases, coffee may negatively affect the body.
A study by the Department of Nutrition and Dietetics Harokopio University, Greece, examined the effects of different amounts of coffee on blood sugar and insulin concentration of health volunteers. It also looked at how gender and body mass index influenced results.
Thirty-three volunteers were used - 16 women and 17 men - who were a mixture of normal-weight and overweight and obese participants. Each consumed 200 milliliters of coffee each morning, and blood samples were taken and tested for blood sugar and insulin levels.
The results showed that coffee has a short-term effect on blood sugar and insulin concentrations. Gender and being overweight or obese can also affect this.
The importance of exercise to those who have diabetes is always stressed. Another small study using people with type 2 diabetes set out to observe the effect that exercise can have on caffeine consumption.
The researchers found that those participants who consumed caffeine and had 40 minutes of exercise had a significant reduction in their blood sugar levels compared to other groups. Their findings suggest that caffeine coupled with prolonged exercise could reduce blood sugar levels.
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