Methodology: In a study consisting of several weeks, we divided
men and women between the ages of 19-67 into three groups. One
group was instructed to keep a low-carb diet and to consume an
additional daily serving of 42 grams of chocolate with 81% cocoa
content (chocolate group). Another group was instructed to follow
the same low-carb diet as the chocolate group, but without the
chocolate intervention (low-carb group). In addition, we asked a
third group to eat at their own discretion, with unrestricted choice of
food. At the beginning of the study, all participants received extensive
medical advice and were thoroughly briefed on their respective
diet. At the beginning and the end of the study, each participant
gave a blood sample. Their weight, BMI, and waist-to-hip ratio were
determined and noted. In addition to that, we evaluated the Giessen
Subjective Complaints List. During the study, participants were encouraged
to weigh themselves on a daily basis, assess the quality of
their sleep as well as their mental state, and to use urine test strips.