Some researchers are critical of the issue. Professor Terence Kealey goes so far in his work "Breakfast is a Dangerous Meal" that he claims that the first meal of the day is harmful to our body and can trigger type 2 diabetes [1]. However, current studies show that a healthy breakfast is the best basis for the day. On the other hand, doing without leads to a nutrient deficit and can minimize physical and mental well-being and limit performance [2]. Scientific studies indicate a lower risk of morbidity and mortality in cardiovascular diseases [3,4] and chronic diseases [3]. Skipping meals can also lead to increased total and LDL cholesterol [5,6], which is a risk factor for cardiovascular disease and atherosclerosis [2]. Mental health also plays a role in this context. Smith (2003) and Rampersaud et al. (2005) were able to show in their study that people who eat breakfast regularly suffer less from depression, stress and anxiety [7,8]. In addition, the results of scientific studies show that cognitive and mental performance [9,10], the ability to concentrate [11], memory [8,11] and attention [12] can be improved. Many people also skip their first meal when dieting [6,13], but people who eat breakfast regularly tend to be slimmer than people who prefer not to. They are exposed to an increased metabolic risk [14] and are more often overweight [8,15]. Of course, the type of breakfast plays a decisive role here. For example, some studies have found a positive effect of breakfast cereals [16,17]. These provide the body with carbohydrates, fiber, vitamins and minerals and provide a good basis for the day [18,19]. Adequate fluid intake and the consumption of grain and dairy products as well as fruit and vegetables are also recommended.

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