Yes, based on available information, mint may not be good for boys due to its potential effects on testosterone levels. Research suggests that spearmint and peppermint, which are herbs from the mint family, can directly affect testosterone levels. Testosterone is a hormone that plays a crucial role in male development and reproductive health. Therefore, the potential decrease in testosterone levels caused by consuming mint could have negative impacts on boys. However, it is important to note that further research is needed to fully understand the extent of mint’s effects on testosterone and its overall impact on boys’ health. It is advisable to consult with a healthcare professional for personalized advice.