The invention relates to a new beverage with a stimulating effect on the basis of caffeine, ascorbic acid, iron in ionic and/or complexed form, organic and inorganic food acids, mineral salts, sweeteners, auxiliary agents, vitamins and aromatic substances as well as water, which beverage contains the above-named substances preferably in a homogeneous mixture or solution characterized in that it contains at least one synergetically effective systemic combination of the three key components caffeine, ascorbic acid and iron-generating a lasting feeling of well-being in a person consuming the beverage-in which combination an additional, i.e. fourth key component is integrated, namely 3,5,5-trimethylhexanal, whereby the above-named four key components are present in the following concentrations in relation to 1 liter of beverage:The invention also relates to a process for manufacturing the beverage and a concentrate suitable for that purpose.
