## 3 Results  
### Data Exploration  
In the control group, 65 volunteers gave informed consent between January 2022 and February 2023. A total of 62 started the trial, and 51 finished it successfully (27 women and 24 men). The main reasons for dropouts were the COVID-19 pandemic and a lack of motivation. Patient recruitment took place in the municipal district of the city of Szeged, Hungary. The flow of participants is summarized in Figure 1.  
In the intervention group, 67 volunteers signed the informed consent between July 2021 and March 2023, out of whom 59 could actually finish the trial according to the protocol. Similarly to the control group, the main reasons for the dropouts were the lack of motivation and the COVID-19 situation. During data cleaning, a total of 108 patient days were dropped due to overly general logged items and 85 days for other reasons detailed above. After data cleaning, 54 patients (26 women and 24 men) had at least 14 fully logged days, applicable for further analysis. Table 1 shows an overview of the relevant demographic and weight loss parameters in this cohort (\(n\) = 54). Table 2 compares the successful vs. unsuccessful sub-groups with respect to demography, adherence and 90-day weight loss. While there are no substantial differences in demography, the unsuccessful sub-group falls behind in all other respects. Similarly, Table 3 shows how some key factors have changed during the trial, with the most notable difference in the daily energy intake decreasing in the SWL sub-group and increasing in the UWL sub-group. The average daily energy intake for the whole observation period was 1470.8 kcal for the successful weight loser sub-group and 1536.9 kcal for the unsuccessful one; however, the difference was not statistically significant in our sample, nor were the differences between the periods shown in Table 3.  
The focus of our study is on nutrition, so we analyzed the food composition of the two sub-groups with respect to the food sets. The weight percentages of the first 10 dietary \begin{table}
\begin{tabular}{l r r} \hline \hline
**Variable** & **Women** & **Men** \\ \hline Group size & 26 & 28 \\ Age at startup (year), average & \(58.1\pm 9.12\) & \(49.8\pm 11.37\) \\ Total number of logged days & 1590 & 2135 \\ Number of logged days, average & \(61.2\pm 27.84\) & \(76.3\pm 36.84\) \\ Initial body weight (kg), average & \(100.8\pm 22.26\) & \(129.3\pm 30.61\) \\
90-day weight change percentage (\%), average & \(-4.5\pm 3.10\) & \(-5.6\pm 4.62\) \\ Number of successful weight losers & 17 of 26 & 18 of 28 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Summary demographic and weight loss data for the intervention group, \(\pm\)standard deviation (\(n\) = 54). Figure 1: Flow of patients in the trial. The control group received medical treatment according to the regular protocol for metabolic syndrome patients. sets are shown in Figure 2. There are slight but notable differences, particularly with respect to raw fruits, vegetables and pastries. \begin{table}
\begin{tabular}{l r r} \hline \hline
**Variable** & **Successful WL** & **Unsuccessful WL** \\ \hline Group size & 35 & 19 \\ Gender & \(17\) women, 18 men & 9 women, 10 men \\ Age at startup (year), average & \(54.2\pm 11.90\) & \(52.9\pm 9.62\) \\ Number of logged days, average & \(73.2\pm 35.74\) & \(61.3\pm 27.81\) \\ Adherence (Number of fully logged days/all days) (\%), average & \(79.6\pm 17.05\) & \(72.9\pm 21.84\) \\ Initial body weight (kg), average & \(120.5\pm 32.02\) & \(106.6\pm 25.17\) \\
90-day weight loss percentage (\%), average & \(-7.2\pm 3.18\) & \(-1.13\pm 1.38\) \\ Weight ratio of raw fruits and vegetables (\%), & \(22.9\pm 10.33\) & \(19.3\pm 10.11\) \\ average & & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Summary trial related data for the successful and unsuccessful weight loser sub-groups, group averages \(\pm\) standard deviation (\(n\) = 54).