Many people around the world start their day with a cup of coffee, often before another activity or even before eating anything. Although this drink has health benefits, consuming it every day on an empty stomach may have harmful effects on the body.

Coffee has many benefits for the body. Caffeine improves circulation and increases blood flow, which may be beneficial for cardiovascular health.

Additionally, it is a rich source of antioxidants and botanical compounds such as B vitamins, riboflavin, and potassium, which has led to its association with a reduced risk of liver and cardiovascular diseases.


Given the evidence of its benefits, experts recommend regular coffee consumption under certain conditions. It is important to know how drinking this drink on an empty stomach every day can affect your health.

Research conducted by the Center for Nutrition, Exercise and Metabolism at the University of Bath in the United Kingdom sheds light on the effects of fasting coffee on blood sugar levels.

The study concluded that: Morning coffee taken after an uninterrupted night’s sleep may affect glucose tolerance and insulin sensitivity in healthy adults.

29 adults who underwent an oral glucose tolerance test participated in the study. The results showed that fasting coffee consumption had a more significant impact on blood sugar levels than sleep disruption. This means consuming it on an empty stomach may reduce glucose tolerance and increase the risk of prediabetes.

(More: Fruit puree brand US recommends against consumption because it’s risky).

Although moderate caffeine consumption is associated with a lower risk of cardiovascular death and cancer, the study highlights that even a single serving can have a significant impact on glucose metabolism.

Although one night of fragmented sleep had no effect on next-day insulin sensitivity or glucose tolerance, Drinking this beverage late at night increased the likelihood of developing diabetes-related indices.

(Also: Pumpkin seeds: What are their benefits for digestive health?).

The U.S. Food and Drug Administration warns that caffeine in powder or liquid form can cause toxic levels if taken excessively. For example, as defined by the Mayo Clinic, a single tablespoon of caffeine powder is equivalent to about 28 cups of coffee.

This site warns that although it may be safe for consumption in adults, as long as it does not exceed the limits. It is not a good idea for children, teenagers, and young adults to mix it with alcohol or other drugs, especially.

The site also states that women who are pregnant or trying to become pregnant should talk to their doctors about limiting caffeine use to 200 mg per day.

Some medications and supplements may interact with this product. Mixing this drink with decongestants may increase the risk of high blood pressure. Additionally, the Mayo Clinic explains that taking theophylline, a medication used to open bronchial airways, along with caffeine may cause adverse effects such as palpitations and nausea.

Researchers suggest that caffeine acts as an antagonist of adenosine receptors, which may inhibit glucose uptake. In addition, caffeine stimulates the release of adrenaline, which suppresses the action of insulin and its absorption into the muscles.

Instead of drinking coffee as soon as you wake up, it is recommended to wait until you have a balanced breakfast. This meal provides the nutrients and energy the body needs to start the day healthily.

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*This content was rewritten with the help of artificial intelligence, based on information published by El País, Uruguay, and reviewed by the journalist and an editor.


Source: Exame

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