The beneficial effects of coffee consumption: Beyond facial skin aging

We have read with great interest the manuscript “Beverage consumption and facial skin aging: Evidence from Mendelian randomization analysis.” by Liu X and coworkers¹ and we considered it important in relation to the effects that drinking habits have on aging.

This Mendelian randomization analysis found that higher coffee consumption is significantly associated with a reduced risk of facial skin aging. These findings can offer novel strategies for identifying the underlying etiology of facial skin aging.

With reference to the results, we would like to contribute to the discussion. Coffee is the most widespread caffeinated drink worldwide in the adult population, in second place are energy drinks which are widespread among young people and in specific groups such as night shift workers.² It is known that the moderate intake of coffee is not associated with the development of side effects on health except in cases of intoxication.^{3, 4}

Coffee is a complex beverage containing various components that contribute to its flavor, aroma, and potential health effects. caffeine is the best-known component of coffee but it is not the only one. Coffee contains a variety of polyphenolic compounds, including chlorogenic acids and flavonoids, which have antioxidant properties. These compounds have a powerful antioxidant action and protect cells from oxidative damage caused by free radicals. They contribute to the health benefits associated with coffee consumption.

Coffee contains various organic acids, such as chlorogenic acid, quinic acid, and citric acid, which contribute to its flavor profile. The amount of lipids in coffee, including triglycerides and fatty acids is small. During the roasting process, these lipids undergo changes that contribute to the aroma and flavor of coffee. While coffee itself is low in carbohydrates, some coffee beverages may contain added sugars or carbohydrates from milk or sweeteners. Coffee contains small amounts of minerals such as potassium, magnesium, and niacin (vitamin B3). However, the contribution of these nutrients to overall dietary intake is relatively minor compared to other dietary sources.

Furthermore, the antioxidant substances in coffee beverages determine favorable effects on health and, as underlined by Liu and collaborators in this interesting article, also on the skin.^{1, 3}

We also reported the beneficial effects of antioxidants in women underlying the contribution of antioxidant intake from coffee to the total antioxidant quota.⁵ The dissemination of this information is important because endothelial dysfunction and oxidative stress are the basis of atherosclerosis and the counteracting action must take place through the adoption of correct lifestyles as for the life essentials 8th.^{6, 7} Common opinion and data, that are often not supported by scientific research, tend to attribute negative effects to coffee: that is, increasing risk of high blood pressure and arrhythmias. These message influence subjects at risk for cardiovascular disease to reduce their intake of this drink determining a reduction of anti-oxidants from diet.⁸ Roasted coffee is a dietary source of polyphenols, known for potent antioxidant properties.

Furthermore, Liu et al underline that caffeine showed anti-senescent properties because of its ability to scavenge free radicals.¹ Although, it is difficult to assess the balance between favorable/unfavorable actions in a beverage that is taken as part of a diet and at different times of the day, we believe that any scientific evidence is important.⁸

The message that must be conveyed is that coffee in moderate quantities and taken in a balanced diet can counteract oxidative stress and must be considered a safe food.⁸

The results presented by Liu et al reinforce this concept and have the advantage of proposing a positive model of action. Skin aging has a strong psychological effect and can lead to unhealthy behaviors. On the contrary, aging must be addressed through active and healthy behaviors that promote longevity.^6-9 Diet and physical activity are the basis for maintaining health. Specifically, it is necessary to differentiate and tailor diet and physical exercise in women and men within a global health assessment that focuses on the individual patient.

In conclusion, it is important that information on the consumption of caffeine-rich drinks is transmitted correctly to the population to counteract false information. This would help to maintain a diet rich in drinks and foods that have favorable effects on health.

None.

No conflict of interest.